12 speed gear box
•Download as PPTX, PDF•
4 likes•768 views
The document describes the design of a 12-speed gearbox with a speed range of 160-2000 rpm from a motor with a speed of 1600 rpm. It involves calculating the step ratio, selecting standard speeds, developing the structural formula, arranging the gears in stages, and calculating the number of teeth for each gear to achieve the desired speed reductions. The final gear tooth counts are provided.
Report
Share
Report
Share
Recommended
Design of 14 speed gear box
This document summarizes the design of a 14-speed gearbox with an output speed range of 125 to 2500 rpm. It includes the following key points:
1) The step ratio is calculated to be 1.258 but the standard value is selected as 1.12 from the data book.
2) Thirteen output speeds between 125 to 2500 rpm are obtained using the standard step ratio of 1.12.
3) The structural formula for the 14-speed gearbox is determined to be 3(1) 3(3) 2(5).
4) The kinematic arrangement of the gearbox shows it has 4 shafts with 16 gears to achieve the 14 speeds.
12 speed gear box
The document describes the design of a 12-speed gearbox with a speed range of 160-2000 rpm from a motor with a speed of 1600 rpm. It involves calculating the step ratio, selecting standard speeds, developing the structural formula, arranging the gears in stages, and calculating the number of teeth for each gear to achieve the desired speed ratios between input and output shafts. The final gear tooth counts that achieve a gearbox with 12 speeds over the given range are provided.
12 speed gear box
The document describes the design of a 12-speed gearbox with an input speed range of 1600 rpm and output speed range of 160-2000 rpm. It involves calculating the step ratio of 1.12, selecting standard speeds between 160-1973 rpm, and determining the kinematic arrangement and number of teeth for each gear to achieve the 12 speeds. The structural formula of the gearbox is 3(1) 2(3) 2(6), meaning the input is split into 3 speeds in stage 1, each of those 3 inputs is split into 2 speeds in stage 2, and each of those 6 inputs is split into 2 speeds in stage 3 to achieve the 12 output speeds.
9 speed gear_box
This document describes the design process for a 9-speed gearbox with an input speed range of 180-1800 rpm. It involves calculating the step ratio, selecting standard step ratios, choosing the output speeds, determining the structural formula, selecting input speeds for each stage, and calculating the number of teeth for each gear. The solution shows the number of teeth for each gear in the two-stage gearbox with input, intermediate, and output shafts.
9 speed gear box
The document describes the design process for a 9-speed gearbox with an input speed range of 180-1800 rpm. It involves calculating the step ratio, selecting standard step ratios, choosing the output speeds, determining the input speeds for each stage, developing the kinematic arrangement, and calculating the number of teeth for each gear. The step ratio was determined to be 1.06. The output speeds were calculated to be 180, 236, 315, 425, 560, 750, 1000, 1320, 1800 rpm. The number of teeth for each gear were determined to satisfy the speed ratios between meshing gear pairs.
Design of gear box for Machine Tool Application (3 stage & 12 speed ) by Saga...
This presentation covers the following points:-
Requirements of gear box for Machine Tool Application
Basic Considerations in the Design of Multi-Speed Gear Box
Determination of Variable Speed Range
1. Arithmetic Progression (AP)
2. Geometric Progression (GP)
3. Harmonic Progression (HP)
Selection of Range Ratio (RN)
Selection of GP Ratio (∅)
Structure Formula
Structure Diagram
Ray Diagram
Rules and Guidelines For Gear Box Layout
Some Gear Box Layout
ME6601 DESIGN OF TRANSMISSION SYSTEMS TWO MARK QUESTION & ANSWERS
ME6601 DESIGN OF TRANSMISSION SYSTEMS ANNA UNIVERSITY TWO MARK QUESTION & ANSWERS FOR REGULATION 2013
Design of 14 speed gear box
This document provides an example problem to design a 14-speed gearbox with output speeds ranging from 125 to 2500 rpm. It involves 4 steps:
1) Calculating the standard step ratio of 1.12 using the minimum and maximum speeds.
2) Selecting the 14 output speeds using multiples of the 1.12 step ratio.
3) Developing the structural formula of 3(1) 3(3) 2(5) to represent the gear stages.
4) Drawing the kinematic arrangement with 4 shafts to connect the gears based on the structural formula.
Recommended
Design of 14 speed gear box
This document summarizes the design of a 14-speed gearbox with an output speed range of 125 to 2500 rpm. It includes the following key points:
1) The step ratio is calculated to be 1.258 but the standard value is selected as 1.12 from the data book.
2) Thirteen output speeds between 125 to 2500 rpm are obtained using the standard step ratio of 1.12.
3) The structural formula for the 14-speed gearbox is determined to be 3(1) 3(3) 2(5).
4) The kinematic arrangement of the gearbox shows it has 4 shafts with 16 gears to achieve the 14 speeds.
12 speed gear box
The document describes the design of a 12-speed gearbox with a speed range of 160-2000 rpm from a motor with a speed of 1600 rpm. It involves calculating the step ratio, selecting standard speeds, developing the structural formula, arranging the gears in stages, and calculating the number of teeth for each gear to achieve the desired speed ratios between input and output shafts. The final gear tooth counts that achieve a gearbox with 12 speeds over the given range are provided.
12 speed gear box
The document describes the design of a 12-speed gearbox with an input speed range of 1600 rpm and output speed range of 160-2000 rpm. It involves calculating the step ratio of 1.12, selecting standard speeds between 160-1973 rpm, and determining the kinematic arrangement and number of teeth for each gear to achieve the 12 speeds. The structural formula of the gearbox is 3(1) 2(3) 2(6), meaning the input is split into 3 speeds in stage 1, each of those 3 inputs is split into 2 speeds in stage 2, and each of those 6 inputs is split into 2 speeds in stage 3 to achieve the 12 output speeds.
9 speed gear_box
This document describes the design process for a 9-speed gearbox with an input speed range of 180-1800 rpm. It involves calculating the step ratio, selecting standard step ratios, choosing the output speeds, determining the structural formula, selecting input speeds for each stage, and calculating the number of teeth for each gear. The solution shows the number of teeth for each gear in the two-stage gearbox with input, intermediate, and output shafts.
9 speed gear box
The document describes the design process for a 9-speed gearbox with an input speed range of 180-1800 rpm. It involves calculating the step ratio, selecting standard step ratios, choosing the output speeds, determining the input speeds for each stage, developing the kinematic arrangement, and calculating the number of teeth for each gear. The step ratio was determined to be 1.06. The output speeds were calculated to be 180, 236, 315, 425, 560, 750, 1000, 1320, 1800 rpm. The number of teeth for each gear were determined to satisfy the speed ratios between meshing gear pairs.
Design of gear box for Machine Tool Application (3 stage & 12 speed ) by Saga...
This presentation covers the following points:-
Requirements of gear box for Machine Tool Application
Basic Considerations in the Design of Multi-Speed Gear Box
Determination of Variable Speed Range
1. Arithmetic Progression (AP)
2. Geometric Progression (GP)
3. Harmonic Progression (HP)
Selection of Range Ratio (RN)
Selection of GP Ratio (∅)
Structure Formula
Structure Diagram
Ray Diagram
Rules and Guidelines For Gear Box Layout
Some Gear Box Layout
ME6601 DESIGN OF TRANSMISSION SYSTEMS TWO MARK QUESTION & ANSWERS
ME6601 DESIGN OF TRANSMISSION SYSTEMS ANNA UNIVERSITY TWO MARK QUESTION & ANSWERS FOR REGULATION 2013
Design of 14 speed gear box
This document provides an example problem to design a 14-speed gearbox with output speeds ranging from 125 to 2500 rpm. It involves 4 steps:
1) Calculating the standard step ratio of 1.12 using the minimum and maximum speeds.
2) Selecting the 14 output speeds using multiples of the 1.12 step ratio.
3) Developing the structural formula of 3(1) 3(3) 2(5) to represent the gear stages.
4) Drawing the kinematic arrangement with 4 shafts to connect the gears based on the structural formula.
Turning moment-diagram-flywheel
Here are the steps to solve this problem:
a) Power of the engine
- Power stroke area = 6000 mm2 = 6000 x 10 Nm = 60,000 Nm
- Resisting torque is uniform, so work done = Area x Resisting torque
- Assuming resisting torque is 10 Nm, work done per cycle = 60,000 Nm
- Work done per cycle x rpm = Power
- Given: Work done per cycle is 60,000 Nm
- Assuming rpm is N
- Then, Power = 60,000 x N W
b) Energy to be stored by flywheel
- Total area under the diagram = Power stroke + Exhaust + Suction + Compression
12 Speed Gear Box Theory Notes by Prof. Sagar Dhotare
It contains the following points:-
Requirements of speed gearboxes
Methods for changing speed in gearboxes
Preferred Numbers
Step ratio (or series ratio or progression ratio) (∅)
RAY DIAGRAM (OR SPEED DIAGRAM)
KINEMATIC LAYOUT (OR KINEMATIC ARRANGEMENT)
BASIC RULES FOR OPTIMUM GEARBOX DESIGN
Turning moment diagrams
The document discusses turning moment diagrams, which graphically represent the turning moment or crank effort for various positions of a crank. It provides details on plotting turning moment diagrams, including representing turning moment on the vertical axis and crank angle on the horizontal axis. The document also discusses how the area of a turning moment diagram represents the work done per revolution. It further discusses turning moment diagrams for engines with multiple cylinders and how flywheels help control fluctuations in speed caused by variations in engine turning moment during each operating cycle.
Design of Machine Tool Gear BOx
This document discusses the design of machine tool gearboxes to provide multiple spindle speeds. It begins with an introduction and overview of how multi-speeds are provided on the spindle shaft through gearing arrangements. The key considerations in gearbox design like selecting optimum speed steps and progressions are explained. Arithmatic and geometric progressions for speed steps are described, with geometric progression being preferred. Methods to determine speed ratios, range ratios, transmission ratios and structural formulae for multi-stage gearboxes are provided. The document aims to provide fundamental concepts and approaches for machine tool gearbox design to achieve multiple spindle speeds.
Electrochemical Machining
1. The document discusses material removal rate (MRR) calculations for various materials during electrochemical machining (ECM) processes under different conditions. Equations for calculating MRR in terms of current, atomic weight, valency, density, and Faraday's constant are provided.
2. MRR values are calculated for materials like copper, iron, nickel superalloy, and alloys using the given parameters and equations.
3. Key factors that influence MRR are identified as atomic weight of the work material, current, and electrolyte properties like resistivity. Commercial ECM is carried out at low voltage and high current.
Se prod thermo_examples_compressor
The document provides 10 examples of calculations related to compressors. The examples calculate various parameters such as indicated power, cylinder bore, volumetric efficiency, power required, heat transferred, swept volume, delivery temperature, and ratio of cylinder diameters for maximum efficiency. The examples involve single-stage and two-stage compressors operating at various pressures and temperatures.
U3 design of connecting rod-(i section, big&small eng, bolt, whipping str...
The document discusses the design of connecting rods for internal combustion engines. It describes the functions of connecting rods as transmitting force between the piston and crankshaft. The dimensions and material selection of connecting rods are important considerations. Connecting rods must be strong enough to withstand buckling forces while also being as lightweight as possible. The document provides steps for calculating the cross-sectional dimensions, sizes of bearings, bolts, and other components of connecting rods based on engine specifications and safety factors.
ME6503 - DESIGN OF MACHINE ELEMENTS UNIT - V NOTES
ME6503 - DESIGN OF MACHINE ELEMENTS UNIT - V NOTES
THE QUESTION NUMBER WILL MATCH TO THE QUESTION BANK ATTACHED AT THE END
Screw Jack Design
The document describes the design of a screw jack that can lift up to 3 tons. It identifies the need, outlines the research conducted, and describes the components designed. The team designed a screw, nut, handle, frame, and cup. Design calculations were performed to determine specifications. Materials were selected based on withstanding torsional, bending and axial loads. The conclusion discusses using a 5/8" acme power screw and improving the design with a two start thread and longer handle to reduce required force.
Chain Drives Selection - Solved Problem
Chain drive, Device used for the transmission of power wherever shafts are divided at distances higher than that for which gears are practical.
Internal combustion engine components design
This document discusses the design of internal combustion engine components. It covers the materials, dimensions, and equations used to calculate the thickness of engine parts like the cylinder, cylinder head, piston, and piston head. The thickness of the cylinder wall is calculated based on gas pressure and stress limits. Empirical formulas are also provided to estimate thicknesses. A numerical example is included to demonstrate calculating the bore, stroke, and head thickness of a diesel engine cylinder based on power and pressure specifications.
Shaper machine tool
The document describes different types of shaper mechanisms including crank shapers, geared shapers, hydraulic shapers, horizontal shapers, and vertical shapers. It then provides details on the main components of a shaper including the base, body, cross rail, saddle, ram, tool head, and tool post. Finally, it explains different mechanisms used for reciprocating motion of the ram including crank and slotted link mechanisms, Whitworth quick return mechanism, and hydraulic shaper mechanism.
ME6503 - DESIGN OF MACHINE ELEMENTS UNIT - II NOTES
ME6503 - DESIGN OF MACHINE ELEMENTS UNIT - II NOTES
THE QUESTION NUMBER WILL MATCH TO THE QUESTION BANK ATTACHED AT THE END
5.5 gyroscope effect in 4 wheeler vehicle
This document discusses the factors that affect the stability of a 4-wheeled vehicle while taking a turn. It describes how the gyroscopic couple produced by the rotating wheels and engine parts, as well as the centrifugal couple caused by the vehicle's velocity, produce vertical reactions on the wheels. An expression is derived for the limiting speed below which the vehicle will remain stable. The key factors that influence the limiting speed and potential for overturning are the vehicle's mass, center of gravity height, radius of the turn, wheel moment of inertia, and engine flywheel design. Maintaining a speed below the limiting speed and reducing these effecting parameters can help ensure the vehicle's stability during turns.
Module 4 numerical problems on cams
This document provides a numerical problem on drawing a cam profile given various parameters of the cam and follower motion. It involves the following steps:
1) Constructing a displacement diagram showing the lift of the follower over the angular rotation of the cam for the outstroke, dwell and return stroke periods.
2) Dividing the outstroke and return stroke into equal parts on the displacement diagram and prime circle.
3) Drawing the base circle, offset circle and prime circle for the cam.
4) Transferring the displacement values from each part on the displacement diagram to the prime circle to obtain the cam profile curve.
2 chain drives
This document discusses chain drives and provides details on their components, operation, advantages, limitations, lubrication, and design considerations. Roller chains are commonly used to transmit power and consist of pin-connected links. Load is applied by driving sprockets to the chain and transmitted to driven sprockets. Key advantages are constant velocity, compact size, and high transmission efficiency. Proper lubrication is important for performance. Design of a chain drive involves selecting sprocket tooth counts and dimensions based on power and speed requirements.
Mechanical Engineering Standard Design Data Book
This document provides a summary of key concepts and equations related to mechanical design data for various components including friction clutches, brakes, belt drives, chain drives, rolling contact bearings, sliding contact bearings, spur gears, helical gears, bevel gears, and worm gears. Key equations are presented for analyzing components like clutches, brakes, gear trains, and bearings. Design considerations related to factors like load capacity, power transmission, material properties, and component life are also discussed.
Cnc Milling
This document provides information about CNC milling. It discusses learning outcomes, introduces milling processes and classifications. It describes the theory of CNC milling machines, including their characteristics, geometry, coordinate systems, zero and reference points, and programming structure. It also covers cutting values, clamping devices, and lists G-codes and M-functions.
Location and locating devices used in jigs and fixtures
This document discusses various principles and methods of locating workpieces in fixtures. It begins by defining what is meant by location and discusses the six degrees of freedom a workpiece has. It then covers different types of locating from plane surfaces using buttons, pins, pads and adjustable supports. It also discusses locating from profiles, cylinders, and preventing issues like redundant location and jamming. A variety of locating methods and components are presented, including dowel pins, nests, and sights. The document provides guidance on selecting locating methods based on workpiece and operation requirements.
Bevel gears
This document discusses bevel gears, including definitions of key terms, classifications, determination of pitch angle, proportions, strength calculations, and shaft design. It defines bevel gears as connecting two intersecting shafts at an angle to transmit power at a constant velocity ratio. Key points covered include:
- Bevel gears are classified as mitre, angular, crown, or internal depending on shaft intersection angle and pitch angle.
- Pitch angle is determined based on the shaft intersection angle and required velocity ratio.
- Strength is calculated using a modified Lewis equation accounting for bevel gear geometry.
- Forces on gears include tangential, radial, and axial components that create bearing reactions and thrust.
- Shaft design involves
9 speed gear box
The document describes the design process for a 9-speed gearbox with an input speed range of 180-1800 rpm. It involves calculating the step ratio, selecting standard step ratios, choosing the output speeds, determining the input speeds for each stage, developing the kinematic arrangement, and calculating the number of teeth for each gear. The step ratio was determined to be 1.06. The output speeds were calculated to be 180, 236, 315, 425, 560, 750, 1000, 1320, 1800 rpm. The number of teeth for each gear were determined to satisfy the speed ratios between meshing gear pairs in the two-stage gearbox.
A.C Drives
The document discusses AC motor drives and induction motor drives. It provides details on:
1. AC motor drives are commonly used in industrial and domestic applications due to their light weight, low cost, and low maintenance requirements. Their power control is relatively complex.
2. There are two main types of AC motor drives - induction motor drives and synchronous motor drives. Induction motors are commonly used in adjustable speed drives.
3. Speed control of induction motors can be achieved by varying the stator voltage and frequency. Rotor resistance control using an external resistor is also described for wound rotor induction motors.
More Related Content
What's hot
Turning moment-diagram-flywheel
Here are the steps to solve this problem:
a) Power of the engine
- Power stroke area = 6000 mm2 = 6000 x 10 Nm = 60,000 Nm
- Resisting torque is uniform, so work done = Area x Resisting torque
- Assuming resisting torque is 10 Nm, work done per cycle = 60,000 Nm
- Work done per cycle x rpm = Power
- Given: Work done per cycle is 60,000 Nm
- Assuming rpm is N
- Then, Power = 60,000 x N W
b) Energy to be stored by flywheel
- Total area under the diagram = Power stroke + Exhaust + Suction + Compression
12 Speed Gear Box Theory Notes by Prof. Sagar Dhotare
It contains the following points:-
Requirements of speed gearboxes
Methods for changing speed in gearboxes
Preferred Numbers
Step ratio (or series ratio or progression ratio) (∅)
RAY DIAGRAM (OR SPEED DIAGRAM)
KINEMATIC LAYOUT (OR KINEMATIC ARRANGEMENT)
BASIC RULES FOR OPTIMUM GEARBOX DESIGN
Turning moment diagrams
The document discusses turning moment diagrams, which graphically represent the turning moment or crank effort for various positions of a crank. It provides details on plotting turning moment diagrams, including representing turning moment on the vertical axis and crank angle on the horizontal axis. The document also discusses how the area of a turning moment diagram represents the work done per revolution. It further discusses turning moment diagrams for engines with multiple cylinders and how flywheels help control fluctuations in speed caused by variations in engine turning moment during each operating cycle.
Design of Machine Tool Gear BOx
This document discusses the design of machine tool gearboxes to provide multiple spindle speeds. It begins with an introduction and overview of how multi-speeds are provided on the spindle shaft through gearing arrangements. The key considerations in gearbox design like selecting optimum speed steps and progressions are explained. Arithmatic and geometric progressions for speed steps are described, with geometric progression being preferred. Methods to determine speed ratios, range ratios, transmission ratios and structural formulae for multi-stage gearboxes are provided. The document aims to provide fundamental concepts and approaches for machine tool gearbox design to achieve multiple spindle speeds.
Electrochemical Machining
1. The document discusses material removal rate (MRR) calculations for various materials during electrochemical machining (ECM) processes under different conditions. Equations for calculating MRR in terms of current, atomic weight, valency, density, and Faraday's constant are provided.
2. MRR values are calculated for materials like copper, iron, nickel superalloy, and alloys using the given parameters and equations.
3. Key factors that influence MRR are identified as atomic weight of the work material, current, and electrolyte properties like resistivity. Commercial ECM is carried out at low voltage and high current.
Se prod thermo_examples_compressor
The document provides 10 examples of calculations related to compressors. The examples calculate various parameters such as indicated power, cylinder bore, volumetric efficiency, power required, heat transferred, swept volume, delivery temperature, and ratio of cylinder diameters for maximum efficiency. The examples involve single-stage and two-stage compressors operating at various pressures and temperatures.
U3 design of connecting rod-(i section, big&small eng, bolt, whipping str...
The document discusses the design of connecting rods for internal combustion engines. It describes the functions of connecting rods as transmitting force between the piston and crankshaft. The dimensions and material selection of connecting rods are important considerations. Connecting rods must be strong enough to withstand buckling forces while also being as lightweight as possible. The document provides steps for calculating the cross-sectional dimensions, sizes of bearings, bolts, and other components of connecting rods based on engine specifications and safety factors.
ME6503 - DESIGN OF MACHINE ELEMENTS UNIT - V NOTES
ME6503 - DESIGN OF MACHINE ELEMENTS UNIT - V NOTES
THE QUESTION NUMBER WILL MATCH TO THE QUESTION BANK ATTACHED AT THE END
Screw Jack Design
The document describes the design of a screw jack that can lift up to 3 tons. It identifies the need, outlines the research conducted, and describes the components designed. The team designed a screw, nut, handle, frame, and cup. Design calculations were performed to determine specifications. Materials were selected based on withstanding torsional, bending and axial loads. The conclusion discusses using a 5/8" acme power screw and improving the design with a two start thread and longer handle to reduce required force.
Chain Drives Selection - Solved Problem
Chain drive, Device used for the transmission of power wherever shafts are divided at distances higher than that for which gears are practical.
Internal combustion engine components design
This document discusses the design of internal combustion engine components. It covers the materials, dimensions, and equations used to calculate the thickness of engine parts like the cylinder, cylinder head, piston, and piston head. The thickness of the cylinder wall is calculated based on gas pressure and stress limits. Empirical formulas are also provided to estimate thicknesses. A numerical example is included to demonstrate calculating the bore, stroke, and head thickness of a diesel engine cylinder based on power and pressure specifications.
Shaper machine tool
The document describes different types of shaper mechanisms including crank shapers, geared shapers, hydraulic shapers, horizontal shapers, and vertical shapers. It then provides details on the main components of a shaper including the base, body, cross rail, saddle, ram, tool head, and tool post. Finally, it explains different mechanisms used for reciprocating motion of the ram including crank and slotted link mechanisms, Whitworth quick return mechanism, and hydraulic shaper mechanism.
ME6503 - DESIGN OF MACHINE ELEMENTS UNIT - II NOTES
ME6503 - DESIGN OF MACHINE ELEMENTS UNIT - II NOTES
THE QUESTION NUMBER WILL MATCH TO THE QUESTION BANK ATTACHED AT THE END
5.5 gyroscope effect in 4 wheeler vehicle
This document discusses the factors that affect the stability of a 4-wheeled vehicle while taking a turn. It describes how the gyroscopic couple produced by the rotating wheels and engine parts, as well as the centrifugal couple caused by the vehicle's velocity, produce vertical reactions on the wheels. An expression is derived for the limiting speed below which the vehicle will remain stable. The key factors that influence the limiting speed and potential for overturning are the vehicle's mass, center of gravity height, radius of the turn, wheel moment of inertia, and engine flywheel design. Maintaining a speed below the limiting speed and reducing these effecting parameters can help ensure the vehicle's stability during turns.
Module 4 numerical problems on cams
This document provides a numerical problem on drawing a cam profile given various parameters of the cam and follower motion. It involves the following steps:
1) Constructing a displacement diagram showing the lift of the follower over the angular rotation of the cam for the outstroke, dwell and return stroke periods.
2) Dividing the outstroke and return stroke into equal parts on the displacement diagram and prime circle.
3) Drawing the base circle, offset circle and prime circle for the cam.
4) Transferring the displacement values from each part on the displacement diagram to the prime circle to obtain the cam profile curve.
2 chain drives
This document discusses chain drives and provides details on their components, operation, advantages, limitations, lubrication, and design considerations. Roller chains are commonly used to transmit power and consist of pin-connected links. Load is applied by driving sprockets to the chain and transmitted to driven sprockets. Key advantages are constant velocity, compact size, and high transmission efficiency. Proper lubrication is important for performance. Design of a chain drive involves selecting sprocket tooth counts and dimensions based on power and speed requirements.
Mechanical Engineering Standard Design Data Book
This document provides a summary of key concepts and equations related to mechanical design data for various components including friction clutches, brakes, belt drives, chain drives, rolling contact bearings, sliding contact bearings, spur gears, helical gears, bevel gears, and worm gears. Key equations are presented for analyzing components like clutches, brakes, gear trains, and bearings. Design considerations related to factors like load capacity, power transmission, material properties, and component life are also discussed.
Cnc Milling
This document provides information about CNC milling. It discusses learning outcomes, introduces milling processes and classifications. It describes the theory of CNC milling machines, including their characteristics, geometry, coordinate systems, zero and reference points, and programming structure. It also covers cutting values, clamping devices, and lists G-codes and M-functions.
Location and locating devices used in jigs and fixtures
This document discusses various principles and methods of locating workpieces in fixtures. It begins by defining what is meant by location and discusses the six degrees of freedom a workpiece has. It then covers different types of locating from plane surfaces using buttons, pins, pads and adjustable supports. It also discusses locating from profiles, cylinders, and preventing issues like redundant location and jamming. A variety of locating methods and components are presented, including dowel pins, nests, and sights. The document provides guidance on selecting locating methods based on workpiece and operation requirements.
Bevel gears
This document discusses bevel gears, including definitions of key terms, classifications, determination of pitch angle, proportions, strength calculations, and shaft design. It defines bevel gears as connecting two intersecting shafts at an angle to transmit power at a constant velocity ratio. Key points covered include:
- Bevel gears are classified as mitre, angular, crown, or internal depending on shaft intersection angle and pitch angle.
- Pitch angle is determined based on the shaft intersection angle and required velocity ratio.
- Strength is calculated using a modified Lewis equation accounting for bevel gear geometry.
- Forces on gears include tangential, radial, and axial components that create bearing reactions and thrust.
- Shaft design involves
What's hot (20)
12 Speed Gear Box Theory Notes by Prof. Sagar Dhotare
12 Speed Gear Box Theory Notes by Prof. Sagar Dhotare
U3 design of connecting rod-(i section, big&small eng, bolt, whipping str...
U3 design of connecting rod-(i section, big&small eng, bolt, whipping str...
ME6503 - DESIGN OF MACHINE ELEMENTS UNIT - V NOTES
ME6503 - DESIGN OF MACHINE ELEMENTS UNIT - V NOTES
ME6503 - DESIGN OF MACHINE ELEMENTS UNIT - II NOTES
ME6503 - DESIGN OF MACHINE ELEMENTS UNIT - II NOTES
Location and locating devices used in jigs and fixtures
Location and locating devices used in jigs and fixtures
Similar to 12 speed gear box
9 speed gear box
The document describes the design process for a 9-speed gearbox with an input speed range of 180-1800 rpm. It involves calculating the step ratio, selecting standard step ratios, choosing the output speeds, determining the input speeds for each stage, developing the kinematic arrangement, and calculating the number of teeth for each gear. The step ratio was determined to be 1.06. The output speeds were calculated to be 180, 236, 315, 425, 560, 750, 1000, 1320, 1800 rpm. The number of teeth for each gear were determined to satisfy the speed ratios between meshing gear pairs in the two-stage gearbox.
A.C Drives
The document discusses AC motor drives and induction motor drives. It provides details on:
1. AC motor drives are commonly used in industrial and domestic applications due to their light weight, low cost, and low maintenance requirements. Their power control is relatively complex.
2. There are two main types of AC motor drives - induction motor drives and synchronous motor drives. Induction motors are commonly used in adjustable speed drives.
3. Speed control of induction motors can be achieved by varying the stator voltage and frequency. Rotor resistance control using an external resistor is also described for wound rotor induction motors.
project designa.docx
1. The document describes the specifications and design calculations for a gear box. It includes the input/output speeds and power, gear sizes and ratios, torque and speed calculations, bending stress analysis, and material selection.
2. Stress and wear analyses were performed on each gear to calculate safety factors and select appropriate materials. Grade 3 carburized and hardened steel was chosen for gear 4 to withstand a maximum bending stress of 244,900 psi.
3. Through calculations, the gear box design was determined to safely deliver 16.4 horsepower at 72 rpm output, with an input of 1538 rpm, using gears constructed of materials like grade 2 through-hardened steel to withstand the operating stresses and wear.
Lpp simplex method
The document describes an optimization problem where a company manufactures 3 products (A, B, C) using precious metals as inputs. The company aims to maximize total profit given daily allotments of platinum and gold.
The problem is formulated as a linear programming problem to determine the optimal production quantity of each product that maximizes profit. The simplex method is applied to solve the LPP and determine the maximum profit of Rs. 32,800 can be achieved by producing 8 units of product A and 24 units of product C.
Modern power system analysis. By D.P. and Nagrath, I.J., 2003. Tata McGraw-Hi...
Modern power system analysis. By D.P. and Nagrath, I.J., 2003. Tata McGraw-Hill Publishing Company. solution
Three Phase Induction Motor Design (Electrical Machine Design)
DESIGN THE MAIN DIMENSION AND ROTOR OF A 0.746KW, 400V, 3‐PHASE, 50HZ, 1432 RPM,
SQUIRREL CAGE INDUCTION MOTOR. THE MACHINE IS TO BE STARTED BY A STAR‐DELTA STARTER. THE EFFICIENCY IS 90% AND POWER FACTOR IS 0.8 AT FULL‐LOAD.
Design:
Main Dimention
Stator(Stator Winding,Stator Core)
Rotor(Squirrel Cage Rotor)
1)Air Gap
2)Rotor Slots
3)Rotor Bars
4)End Rings
5)Rotor Core
IRJET- Design and Development of Open Differential for Transmission System of...
This document describes the design and development of an open differential for an all-terrain vehicle (ATV). The authors first perform analytical calculations to determine the required gear ratios and sizes based on the vehicle's dimensions and performance requirements. They select materials and design the gears to withstand bending and contact stresses. Bearings are sized to support the radial and axial loads from the gears. The differential components, including gears, pinion, and center pin, are then modeled in CAD software. In summary, the authors designed and analyzed an open differential through calculations and CAD modeling to transmit torque from the transmission to the wheels of an ATV.
Capítulo 13 engrenagens
1) The document contains sample problems and solutions from Chapter 13 of a textbook on mechanical engineering design. It includes gear calculations for determining speed, diameter, pressure angle, etc.
2) Specific examples calculate values like number of teeth, shaft speeds, gear diameters, and contact ratios for various gear trains. Formulas used include those for diametral pitch, circular pitch, and gear ratios.
3) Sample problems include determining the minimum pinion teeth required for different gear meshing scenarios, calculating linear speed and angular velocities in planetary gear systems, and setting up and solving gear train ratio equations.
2-3n.docx
1. The document describes the specifications and design calculations for a gear box that reduces the input speed of 1992 rpm to an output speed range of 100-106 rpm.
2. Key calculations include determining the number of teeth for each gear, gear speeds, torques, diameters, contact stresses, and safety factors against bending and wear.
3. Materials selection involves choosing grade 1 carburized and hardened steel gears to withstand maximum contact stresses of 165,163 psi and 152,000 psi, and safety factors above 1.3 for bending and 2.1 for wear.
Shi20396 ch13
Diseno en ingenieria mecanica de Shigley - 8th ---HDes
descarga el contenido completo de aqui http://paralafakyoumecanismos.blogspot.com.ar/2014/08/libro-para-mecanismos-y-elementos-de.html
Design of Flexible Pavement Using AASHTO.pptx
This document outlines the process for designing flexible pavement using the AASHTO method. It provides definitions and equations for determining the key inputs needed for the AASHTO chart: reliability, standard deviation, ESALs, modulus of resilience for different layers, and change in pavement serviceability index. It then explains how to use these inputs on the AASHTO chart to calculate the structure number for each pavement layer, which indicates the required thickness.
2005 PT Design Of Interior Permanant Magnet Machines For Hybrid Electric Vehi...
Design consideration of IPM machines
Ece523 folded cascode design
• Designed a single stage folded cascode op-amp which had atleast 50 dB gain and 135 MHz Unity Gain Bandwidth for the three temperature corners (typical, slow and fast), in Cadence.
• The op-amp had a phase margin of atleast 64º and an output swing of atleast 1.46 V for the temperature corners (27,-40,100).
• Designed a common mode feedback for the amplifier and achieved a common mode accuracy of 0.01 V.
Range estimation of Battery operated vehicles using MATLAB
1. The document describes the development of a Simulink model to simulate the operation of a pedelec (bicycle with electric motor support).
2. An initial model was created to calculate speed, time, and acceleration over road segments of varying slopes.
3. The model was expanded to assign speed based on slope using kinematic equations and to calculate power consumption from factors like acceleration, rolling resistance, air drag, and motor support power.
Dmt assignment
This document presents an analysis of a stepped gear box regulation in a lathe machine. It includes structural diagrams, a ray diagram, and speed charts to illustrate the gear box design. The analysis determines the number of speed steps and transmission ratios needed to achieve a 20.84x speed range between 938 rpm and 45 rpm. The optimal structural formula was determined to be Z=4(1)*2(4), with two transmission stages between the motor and spindle. The ray diagram visually depicts the gear ratios that satisfy the transmission constraints to efficiently distribute speeds across the required range.
DB Cable
The document describes steps to calculate cable conductor dimensions based on IEC sizes. It first assigns standard cable sizes and calculates diameters using the cable areas. It then assigns cable numbers, sizes, diameters, and areas. Stranding factors are applied based on the number of strands to obtain the conductor outer diameter for different standard stranded cables. The stranding factors are calculated and applied to determine the final conductor diameters.
Ee321 lab 2
This document analyzes important power system components like transformers using manual calculations and MATLAB simulations. It finds how transformer efficiency behaves and implements it in MATLAB. The analysis includes determining primary voltages, equivalent circuits, and power factors for transformers. It also draws an impedance diagram for an electric power system showing components like generators, transformers, transmission lines, and loads using per unit calculations on a 100 MVA base. The results of the manual calculations are compared to simulations in MATLAB and Simscape Power Systems. The document concludes that transformer efficiency increases steadily over time while regulation decreases rapidly, and high efficiency with low regulation is desirable for transformers.
Power screw application
The document outlines the design of a power screw clamping mechanism. It includes:
1. An introduction to the project and screw thread design.
2. Details on the power screw design including material selection, size calculations, and stress analysis.
3. Details on the frame and arm design including force and stress analysis.
4. An overview of modeling the individual parts and full assembly in SolidWorks.
steel question.pdf.pdf
This document discusses the design of steel structural connections using rivets. It provides examples of calculating forces in rivets for an eccentric load connection, determining the number and pattern of rivets needed for a truss connection, and designing welded and riveted connections between steel members and gusset plates. The examples calculate shear and bearing forces in rivets, check if connections are safe based on rivet capacities, and determine weld sizes. Design considerations include member forces, rivet patterns, weld lengths, and selecting sections that meet strength requirements.
Design of a Multispeed Multistage Gearbox
This document describes the design of a 4-speed 2-stage gearbox using spur gears. The gearbox is designed to transmit 0.34 kW of power with speed steps of 1100 rpm, 1603 rpm, 2335 rpm, and 3400 rpm. The gearbox uses a sliding mesh design with splined shafts to allow gears to slide and mesh. Calculations are shown for determining the number of teeth on each gear, gear dimensions, shaft dimensions, key and spline dimensions, and bearing selection. A kinetic diagram is developed and gear dimensions are verified using stress-strain analysis. The designed gearbox is intended for low to medium power applications in light machinery.
Similar to 12 speed gear box (20)
Modern power system analysis. By D.P. and Nagrath, I.J., 2003. Tata McGraw-Hi...
Modern power system analysis. By D.P. and Nagrath, I.J., 2003. Tata McGraw-Hi...
Three Phase Induction Motor Design (Electrical Machine Design)
Three Phase Induction Motor Design (Electrical Machine Design)
IRJET- Design and Development of Open Differential for Transmission System of...
IRJET- Design and Development of Open Differential for Transmission System of...
2005 PT Design Of Interior Permanant Magnet Machines For Hybrid Electric Vehi...
2005 PT Design Of Interior Permanant Magnet Machines For Hybrid Electric Vehi...
Range estimation of Battery operated vehicles using MATLAB
Range estimation of Battery operated vehicles using MATLAB
More from kamaraj college of engineeing and technology
Design of energy storing elements and engine components
This document provides information about springs and flywheels. It defines springs as elastic bodies that distort under load and recover their original shape when unloaded. Common types of springs discussed include helical, leaf, and Belleville springs. Terminology used in helical springs like wire diameter, coil diameter, and spring index are defined. The document also discusses flywheels, their purpose of storing energy from the power source and releasing it more uniformly. Equations for coefficient of fluctuation of speed and energy, work done per cycle, and energy stored in a flywheel are provided.
5. wire rope and sample problem
The document discusses the design and selection of wire ropes using a PSG design data book. It first provides background on wire ropes, describing their evolution, construction, advantages, and common applications. It then outlines the 11 step procedure for designing a wire rope for a specific application, in this case an elevator. The steps include selecting the wire rope type, calculating design loads, selecting rope diameter, calculating sheave diameter, and determining wire diameter, rope weight, effective load, safety factors, and number of wires required. An example problem applying this 11 step method to design a wire rope for a 60m elevator with a 20kN load is then shown.
2.flat belts & sample problem
This document provides information and steps to design a flat belt drive system to transmit 20 kW of power at 720 rpm from a driving pulley to a driven pulley with a speed ratio of 3 and center distance of 3 meters.
The standard pulley diameters are selected as 400 mm for the driver and 1200 mm for the driven pulley. The design power is calculated to be 25 kW considering a shock load, arc of contact of 164 degrees, and transmission ratio of 3. A 6-ply 112 mm wide Dunlop "FORT" belt is selected to transmit this power.
The length of the belt is calculated to be 8566.6 mm. The pulley widths are selected as 125 mm with 4 arms for
3. v belt and sample problem
This document discusses the design and selection of V-belt drives. It describes the different types of V-belts and provides details on their cross-section. The advantages of V-belt drives are listed, such as smooth operation, ability to transmit power around corners, long service life, and acting as a safety fuse. The procedure for selecting a V-belt drive includes choosing the belt section, standard pulleys, center distance, nominal pitch length, modification factors, maximum power capacity, number of belts, and pulley dimensions. An example problem is provided to demonstrate the selection process. Key differences between flat belt drives and V-belt drives are also outlined.
Design procedure for dts (revised)
1. The document provides design procedures and formulas for selecting various transmission system components from a PSG Design Data Book, including:
2. Procedures are given for designing flat belts, v-belts, chain drives, wire ropes, spur gears, and parallel axis helical gears. Each procedure involves selecting standard component sizes, calculating loads and speeds, and checking factors of safety.
3. Formulas are provided at each step to calculate values like pulley diameters, belt speed and width, chain pitch and length, gear ratios, torque, and more. Standard component options and design parameters are referenced from the PSG Design Data Book tables and charts.
1.introduction to flexible drives & belts
This document provides an introduction to flexible drives, specifically belt drives, used in transmission systems. It discusses the basic components and history of flexible drives. Belt drives transmit power between components over distance in a simple and cost-effective manner. The document outlines different types of belts and materials used. It explains key concepts in belt drives such as tight and slack sides, velocity ratio, belt creep, whipping, centrifugal tension, and slip. Flexible drives like belt drives are widely used to transfer mechanical power in machines and vehicles.
More from kamaraj college of engineeing and technology (6)
Design of energy storing elements and engine components
Design of energy storing elements and engine components
Recently uploaded
欧洲杯足彩-欧洲杯足彩比赛投注-欧洲杯足彩比赛投注官网|【网址🎉ac10.net🎉】
【网址🎉ac10.net🎉】欧洲杯足彩是世界上历史最悠久的博彩公司之一。其历史可以追溯到十九世纪末，确切时间是1886年。这家英国公司拥有超过15000名员工，是博彩行业规模最大的公司。欧洲杯足彩是英国最受欢迎的实体博彩公司之一，其排名仅次于欧洲杯足彩，旗下2800家投注站遍布全英国。
一比一原版马来西亚世纪大学毕业证成绩单一模一样
原件一模一样【微信：6496090】【马来西亚世纪大学毕业证学位证成绩单】【微信：6496090】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：6496090】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：6496090】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：6496090】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理马来西亚世纪大学毕业证学位证【微信：6496090 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理马来西亚世纪大学毕业证学位证【微信：6496090 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理马来西亚世纪大学毕业证学位证【微信：6496090 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理马来西亚世纪大学毕业证学位证【微信：6496090 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
一比一原版澳洲莫纳什大学毕业证（Monash学位证）如何办理
原件一模一样【微信：WP101A】【澳洲莫纳什大学毕业证（Monash学位证）成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理澳洲莫纳什大学毕业证（Monash学位证）学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理澳洲莫纳什大学毕业证（Monash学位证）学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理澳洲莫纳什大学毕业证（Monash学位证）学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理澳洲莫纳什大学毕业证（Monash学位证）学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
一比一原版(CSU毕业证书)查尔斯特大学毕业证如何办理
原件一模一样【微信：WP101A】【(CSU毕业证书)查尔斯特大学毕业证学位证成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理(CSU毕业证书)查尔斯特大学毕业证学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(CSU毕业证书)查尔斯特大学毕业证学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(CSU毕业证书)查尔斯特大学毕业证学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(CSU毕业证书)查尔斯特大学毕业证学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
一比一原版(falmouth毕业证书)法尔茅斯大学毕业证如何办理
原版一模一样【微信：6496090 】【(falmouth毕业证书)法尔茅斯大学毕业证成绩单】【微信：6496090 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微6496090
【主营项目】
一.毕业证【q微6496090】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微6496090】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(falmouth毕业证书)法尔茅斯大学毕业证【微信：6496090 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(falmouth毕业证书)法尔茅斯大学毕业证【微信：6496090 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(falmouth毕业证书)法尔茅斯大学毕业证【微信：6496090 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(falmouth毕业证书)法尔茅斯大学毕业证【微信：6496090 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
一比一原版美国俄勒冈大学毕业证（UO,UofO学位证）如何办理
原件一模一样【微信：WP101A】【美国俄勒冈大学毕业证（UO,UofO学位证）成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理美国俄勒冈大学毕业证（UO,UofO学位证）学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理美国俄勒冈大学毕业证（UO,UofO学位证）学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理美国俄勒冈大学毕业证（UO,UofO学位证）学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理美国俄勒冈大学毕业证（UO,UofO学位证）学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
一比一原版（爱大毕业证）美国爱荷华大学毕业证如何办理
原件一模一样【微信：WP101A】【（爱大毕业证）美国爱荷华大学毕业证学位证成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理（爱大毕业证）美国爱荷华大学毕业证学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理（爱大毕业证）美国爱荷华大学毕业证学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理（爱大毕业证）美国爱荷华大学毕业证学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理（爱大毕业证）美国爱荷华大学毕业证学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
一比一原版英国伦敦政治经济学院毕业证（LSE学位证）如何办理
原件一模一样【微信：WP101A】【英国伦敦政治经济学院毕业证（LSE学位证）学位证）成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理英国伦敦政治经济学院毕业证（LSE学位证）学位证）学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理英国伦敦政治经济学院毕业证（LSE学位证）学位证）学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理英国伦敦政治经济学院毕业证（LSE学位证）学位证）学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理英国伦敦政治经济学院毕业证（LSE学位证）学位证）学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
My Fashion PPT is my presentation on fashion and Trendss
This Presentation is in one way a guide to master the classic trends and become a timeless beauty. This will help the beginners who are out with the motto to excel and become a Pro Fashionista, this Presentation will provide them with easy but really useful ten ways to master the art of styles. Hope This Helps.
一比一原版（CSUEB毕业证）美国加州州立大学东湾分校毕业证如何办理
原件一模一样【微信：WP101A】【（CSUEB毕业证）美国加州州立大学东湾分校毕业证学位证成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理（CSUEB毕业证）美国加州州立大学东湾分校毕业证学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理（CSUEB毕业证）美国加州州立大学东湾分校毕业证学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理（CSUEB毕业证）美国加州州立大学东湾分校毕业证学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理（CSUEB毕业证）美国加州州立大学东湾分校毕业证学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
欧洲杯买球-欧洲杯买球买球网好的网站-欧洲杯买球哪里有正规的买球网站|【网址🎉ac123.net🎉】
【网址🎉ac123.net🎉】欧洲杯买球是独立的博彩公司。该公司最初专门从事在线体育博彩，现在合并了在线娱乐场。该公司最初成立时以其前董事长Victor Chandler的名字命名，之后更名为欧洲杯买球。欧洲杯买球现由商人和赛马主，迈克尔·塔博尔拥有，运营总部设在直布罗陀。平台拥有体育博彩（沙巴）、真人娱乐场、电子游戏、金融投注等游戏项目，支持手机投注，优惠活动很丰富。
一比一原版澳洲科廷科技大学毕业证（Curtin毕业证）如何办理
原件一模一样【微信：WP101A】【澳洲科廷科技大学毕业证（Curtin毕业证）学位证成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理澳洲科廷科技大学毕业证（Curtin毕业证）学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理澳洲科廷科技大学毕业证（Curtin毕业证）学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理澳洲科廷科技大学毕业证（Curtin毕业证）学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理澳洲科廷科技大学毕业证（Curtin毕业证）学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
The Power to Battle! Slideshow by: Kal-el
This presentation is all about how you can open your "new-loving" battle.
一比一原版(USQ毕业证书)南昆士兰大学毕业证如何办理
原件一模一样【微信：WP101A】【(USQ毕业证书)南昆士兰大学毕业证学位证成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理(USQ毕业证书)南昆士兰大学毕业证学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(USQ毕业证书)南昆士兰大学毕业证学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(USQ毕业证书)南昆士兰大学毕业证学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(USQ毕业证书)南昆士兰大学毕业证学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Plastic Molding Infographic - RPWORLD.pdf
RPWORLD offers custom injection molding service to help customers develop products ramping up from prototypeing to end-use production. We can deliver your on-demand parts in as fast as 7 days.
一比一原版（ECU毕业证）澳洲埃迪斯科文大学毕业证如何办理
原件一模一样【微信：WP101A】【（ECU毕业证）澳洲埃迪斯科文大学毕业证学位证成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理（ECU毕业证）澳洲埃迪斯科文大学毕业证学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理（ECU毕业证）澳洲埃迪斯科文大学毕业证学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理（ECU毕业证）澳洲埃迪斯科文大学毕业证学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理（ECU毕业证）澳洲埃迪斯科文大学毕业证学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
一比一原版（OU毕业证）美国俄克拉荷马大学毕业证如何办理
原件一模一样【微信：WP101A】【（OU毕业证）美国俄克拉荷马大学毕业证学位证成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理（OU毕业证）美国俄克拉荷马大学毕业证学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理（OU毕业证）美国俄克拉荷马大学毕业证学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理（OU毕业证）美国俄克拉荷马大学毕业证学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理（OU毕业证）美国俄克拉荷马大学毕业证学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
一比一原版英国伦敦大学毕业证（London学位证）如何办理
原件一模一样【微信：WP101A】【英国伦敦大学毕业证（London学位证）学位证）成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理英国伦敦大学毕业证（London学位证）学位证）学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理英国伦敦大学毕业证（London学位证）学位证）学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理英国伦敦大学毕业证（London学位证）学位证）学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理英国伦敦大学毕业证（London学位证）学位证）学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
一比一原版(NU毕业证书)诺森比亚大学毕业证如何办理
原件一模一样【微信：WP101A】【(NU毕业证书)诺森比亚大学毕业证学位证成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理(NU毕业证书)诺森比亚大学毕业证学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(NU毕业证书)诺森比亚大学毕业证学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(NU毕业证书)诺森比亚大学毕业证学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(NU毕业证书)诺森比亚大学毕业证学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
一比一原版(Deakin毕业证书)澳洲迪肯大学毕业证文凭如何办理
原件一模一样【微信：WP101A】【(Deakin毕业证书)迪肯大学毕业证学位证成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理(Deakin毕业证书)迪肯大学毕业证学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(Deakin毕业证书)迪肯大学毕业证学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(Deakin毕业证书)迪肯大学毕业证学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(Deakin毕业证书)迪肯大学毕业证学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Recently uploaded (20)
My Fashion PPT is my presentation on fashion and Trendss
My Fashion PPT is my presentation on fashion and Trendss
欧洲杯买球-欧洲杯买球买球网好的网站-欧洲杯买球哪里有正规的买球网站|【网址🎉ac123.net🎉】
欧洲杯买球-欧洲杯买球买球网好的网站-欧洲杯买球哪里有正规的买球网站|【网址🎉ac123.net🎉】
12 speed gear box
- 1. DEPARTMENT OF MECHANICAL ENGINEERING By Mr. B.Balavairavan Assistant Professor Mechanical Engineering Kamaraj College of Engineering and Technology Virudhunagar Problem on Design of 12 Speed Gear Box
- 2. Sample Problem Design a gearbox with 12 speeds from a source of motor with a speed of 1600. The required speed range is from 160 rpm to 2000 rpm. Given: n = 12 Nmin = 160 rpm Nmax = 2000 rpm
- 3. Step - 1 “Calculation of Step ratio” Referring PSG Data Book P. No : 7.20 the calculated step ratio is not a std. value Nmax Nmin = Ø n-1 2000 160 = Ø 12-1 Ø = 1.258
- 4. Since its not a std. value, Using multiples of std. value the required step ratio is calculated 1.6 - 1.25 - 1.12 - 1.06 - Multiples of 1.12 gives nearest value of 1.258 As 1.06 is multiplied 1 times we skip 1 speed Hence std. Ø = 1.12 & R 20 series is selected Cannot be used Cannot be used 1.12 1.06 x 1.12 = 1.254 x 1.06 x 1.06x 1.06 = 1.238
- 5. Step - 2 “Selection of Speeds” The obtained speeds are; 160,200,250,315,400,500,630,800, 1000,1254,1573,1973 100 112 125 140 160 180 200 224 250 280 315 355 400 450 500 560 630 710 800 900 100 0 112 0 125 4 140 4 157 3 176 2 197 3 221 0 Check for deviation
- 6. The allowable deviation and actual deviation is calculated, Allowable deviation = ± 10 (Ø - 1) % Nmin Nmax = (Nmax actual - Nmax) x = ± 10 (1.258 - 1) % = ± 2.58 % Actual deviation 160 2000 = (1973 - 2000) x = - 2.16 %
- 7. Since the deviation is within the allowable range we can design for standard speeds. The selected standard speeds are; 160, 200, 250, 315, 400, 500, 630, 800, 1000, 1254, 1573, 1973
- 8. Step - 3 “ Structural formula & Ray Diagram ” The structural formula for 12 speed gear box is 3 (1) 2 (3) 2 (6) Stage 1 - Single input is splitted into 3 speeds Stage 2 - 3 input is splitted into 6 speeds ie., each input is splitted into 2 speed Stage 3 - 6 input is splitted into 12 speeds ie., each input is splitted into 2 speed
- 9. 1973 1573 1254 1000 800 630 500 400 315 250 200 160 3 (1) 2 (3) 2 (6) Stage 1 Stage 2 Stage 3 Nmin Ni/p ≥ 0.25 Nmax Ni/p ≤ 2 160 400 630 400 = 0.4 = 1.57 = = Nmin Ni/p ≥ 0.25 Nmax Ni/p ≤ 2 400 630 800 630 = 0.63 = 1.27 = = Nmin Ni/p ≥ 0.25 Nmax Ni/p ≤ 2 630 1573 1000 1573 = 0.40 = 0.63 = = Stage - 3 Stage - 2 Stage - 1
- 10. Step - 4 “ Kinematic Arrangement ” Shaft - 1 / Input Shaft - 2 / Intermediate Shaft - 3 / Intermediate 1 3 42 5 6 11 13 8 7 9 10 14 12 Shaft - 4 / Output
- 11. Step - 5 “ Calculation of number of number of teeth in gears ” Stage - 3 “First Pair - Lowest speed o/p Assume number of teeth in driver, z13 = 20 z13 z14 = N14 N13 20 z14 = 160 400 z14 = 50
- 12. Stage - 3 “Second Pair z11 z12 = N12 N11 z11 z12 = 630 400 z11 = 1.575 z12 z11 + z12 = z13+ z14 z11 + z12 = 20+ 50 = 70 1.575 z12 + z12 = 70 z12 = 27 .18 ≅ 27 z11 = 43
- 13. Stage - 2 “First Pair - Lowest speed o/p Assume number of teeth in driver,z7 = 20 z7 z8 = N8 N7 20 z8 = 400 630 z8 = 31.5≅ 32
- 14. Stage - 2 “Second Pair z9 z10 = N10 N9 z9 z10 = 800 630 z9 = 1.269 z10 z7 + z8 = z9+ z10 20+ 32 = z9 + z10 = 52 1.269 z10 + z10 = 52 z10 = 22.9 ≅ 23 z9 = 29
- 15. Stage - 1 “First Pair - Maximum Speed Reduction” Assume number of teeth in driver, z5 = 20 z5 z6 = N6 N5 20 z6 = 630 1573 z6 = 49.9 ≅ 50
- 16. Stage - 1 “Second Pair” z1 z2 = N2 N1 z1 z2 = 800 1573 z1 = 0.50 z2
- 17. Stage - 1 “Third Pair” z3 z4 = N4 N3 z3 z4 = 1000 1573 z3 = 0.63 z4
- 18. Stage - 1 z1 + z2 = z3+ z4 = z5+ z6 z1 + z2 = z3+ z4 = 20 + 50 = 70 z5 = 20 z6 = 50 z1 = 0.50 z2 z3 = 0.63 z4 z3 + z4 = 70 z1 + z2 = 70 0.63 z4 + z4 = 70 0.50 z2 + z2 = 70 z2 = 46.6 ≅ 47 z4 = 42.94 ≅ 43 z3 = 27 z1 = 23
- 19. Solution z1 = 23 z2 = 47 z3 = 27 z4 = 43 z5 = 20 z6 = 50 z8 = 32 z7 = 20 z10 = 23 z9 = 29 z11 = 43 z12 = 27 z13 = 20 z14 = 50