PRESENTATION ON DRILLING MACHINE
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PRESENTATION ON DRILLING MACHINE FOR MECHANICAL STUDENTS
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Here are the steps to solve these cutting speed and spindle speed problems:
1. D = 15mm, S (cutting speed) = 47-81 m/min (for machine steel CS 90)
Let's take S = 60 m/min
Using the formula:
S = πDN/1000
60 = π × 15 × N/1000
N = 60 × 1000/(π × 15) = 400 rev/min
2. D = 10mm, N = 178 rev/min
Using the formula:
S = πDN/1000
S = π × 10 × 178/1000 = 56.5 m/min
3. D = 9mm, N
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Smith forging, also called flat die or open die forging, uses simple flat-faced dies and stock tooling to produce workpieces with less accuracy than impression or closed die forging. Impression die forging uses cavities in specially prepared dies to produce forged shapes in large quantities through drop, press, or machine forging. Closed die forging places a heated workpiece on a lower die while an upper die forces the metal to fill die contours. Hand forging shapes small forgings through hammering heated metal on anvils while power hammers and presses are used to forge larger parts through blows or squeezing.
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This document presents a kinematic study of a planer machine. It begins with an introduction that describes a planer machine as a tool that generates flat surfaces and cuts slots by moving the entire workpiece beneath a cutting head. It then describes the main parts of a planer machine including the bed, table, column, cross rail, and tool head. The document goes on to classify different types of planer machines, including double housing planers, open side planers, and divide type planers. It also describes the table drive and feeding mechanisms used in planer machines. Finally, it explains the operations of planning flat horizontal and vertical surfaces.
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- Extrusion is a metal forming process where a metal workpiece is forced through a die to reduce its cross-section or form a specific shape. It uses compressive force and can be done hot or cold.
- In direct extrusion the metal flows in the direction of the punch, while in indirect extrusion it flows in the opposite direction. Hydrostatic extrusion uses a fluid instead of direct contact to apply pressure.
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Drilling and boring
The document discusses drilling and boring machines. It describes how drilling machines are used to produce circular holes in workpieces using rotating cutters called drills. Different types of drilling machines are described, including portable drilling machines, sensitive bench drilling machines, upright drilling machines, radial drilling machines, gang drilling machines, turret drilling machines, and deep hole drilling machines. The document also covers topics such as tool nomenclature, drilling operations, tool holding devices, work holding devices, drill types, and reaming.
Lathe machine
Lathe is one of the most important machine tools in the metal working industry. A lathe operates on the principle of a rotating work-piece and a fixed cutting tool.
Lathe machine also called “Engine Lathe” because the first type of lathe was driven by a steam engine
Shaper machine
This document provides information about a shaper machine. It begins with identifying the student (Siddhant Gupta) and their branch/section. It then introduces shapers as reciprocating machine tools used to produce flat surfaces. The main sections describe the function of shapers to produce flat planes, the different types classified by mechanism and ram position, and the principal parts of a shaper like the ram, table, tool head. It also explains the quick return mechanism using a crank and slotted link and applications of shaper machines.
Drilling machine
Here are the steps to solve these cutting speed and spindle speed problems:
1. D = 15mm, S (cutting speed) = 47-81 m/min (for machine steel CS 90)
Let's take S = 60 m/min
Using the formula:
S = πDN/1000
60 = π × 15 × N/1000
N = 60 × 1000/(π × 15) = 400 rev/min
2. D = 10mm, N = 178 rev/min
Using the formula:
S = πDN/1000
S = π × 10 × 178/1000 = 56.5 m/min
3. D = 9mm, N
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supervision of the Home Secretary who is also the Secretary,
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Whole lathe machine in brief which any one can understand easily and quickly.
A Perfect ppt to get knowledge about lathe machine, its parts, operations etc.
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Taper turning methods are discussed in this document. It describes different taper turning techniques used in lathe machines such as compound rest method, offset tailstock method, and taper attachment method. The document provides details on how each method works and when they should be used for turning tapers of various shapes and sizes.
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What does clamping mean in context of jigs and fixtures?
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Different types of Clamping Devices, their advantaged and disadvantages
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The document summarizes the gear shaping process. Gear shaping uses a cutting tool shaped like a gear that reciprocates axially across a gear blank to cut the teeth while the blank rotates. The gear-shaped tool cuts itself into mesh with the blank. Gear shaping can produce spur, helical, rack, and internal gears using different types of cutters. It provides good accuracy for medium and batch production of gears. However, its production rate is lower than gear hobbing.
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The document discusses different types of turning fixtures and mandrels used to securely hold workpieces for machining operations on lathes. Turning fixtures are cheaper than milling and allow for asymmetric jobs to be machined. Fixtures must be carefully designed for operator safety, accuracy, and proper clamping to the faceplate. Mandrels are used internally to locate cylindrical workpieces and come in tapered, clamping, expanding, and threaded varieties to suit a range of bore sizes and provide accurate concentricity.
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This document discusses lathe operations and provides details on various operations like facing, turning, knurling, parting off, drilling, boring, thread cutting, and taper turning. It explains the basic principles and methods for each operation. The objective of the course is to help students understand different types of lathes, lathe operations, work holders, tool holders, lathe attachments, and automatic lathes. The outcome is for students to be able to use lathe machines and understand the importance of lathe tools and lathes. [/SUMMARY]
Milling & Gear Cutting
MILLING – Cutting parameters, machine time calculation
Milling operation – Plain milling, side & face milling, form milling, gang milling, end milling, face milling, T slot milling, slitting
GEAR CUTTING – Gear cutting on milling machine – dividing head and indexing method, gear hobbing, principle of operation, advantages & limitation, hobbing tech, gear shaping, gear finishing process
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This document discusses the basic workshop tool called a hacksaw. It describes the main parts of a hacksaw which are the frame and blade. There are three types of hacksaw frames: solid, adjustable, and deep cutting. The document outlines the characteristics of hacksaw blades including the materials they are made from as well as specifications about length, width, thickness, and pitch. Finally, it covers the settings of hacksaw teeth which can be staggered or in a wave form.
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PRESENTATION ON DRILLING MACHINE
- 2. IINNTTRROODDUUCCTTIIOONN • DDrriilllliinngg iiss aa mmeettaall ccuuttttiinngg pprroocceessss ccaarrrriieedd oouutt bbyy aa rroottaattiinngg ccuuttttiinngg ttooooll ttoo mmaakkee cciirrccuullaarr hhoolleess iinn ssoolliidd mmaatteerriiaallss.. • TTooooll wwhhiicchh mmaakkeess hhoollee iiss ccaalllleedd aass ddrriillll bbiitt oorr ttwwiisstt ddrriillll..
- 3. TTYYPPEESS OOFF DDRRIILLLLIINNGG MMAACCHHIINNEE.. • PPoorrttaabbllee ddrriilllliinngg mmaacchhiinnee • BBeenncchh ddrriilllliinngg mmaacchhiinnee • RRaaddiiaall ddrriilllliinngg mmaacchhiinnee • PPiillllaarr ddrriilllliinngg mmaacchhiinnee • GGaanngg ddrriilllliinngg mmaacchhiinnee • MMuullttiippllee ddrriilllliinngg mmaacchhiinnee
- 5. BBEENNCCHH DDRRIILLLLIINNGG MMAACCHHIINNEE • VVeerrttiiccaall mmaaiinn ccoolluummnn • BBaassee • MMoovviinngg ddrriillll hheeaadd • WWoorrkk ttaabbllee • EElleeccttrriicc mmoottoorr • VVaarriiaabbllee ssppeeeedd ggeeaarr bbooxx aanndd ssppiinnddllee ffeeeedd mmeecchhaanniissmm..
- 6. RRAADDIIAALL DDRRIILLLLIINNGG MMAACCHHIINNEE • HHeeaavvyy bbaassee • VVeerrttiiccaall ccoolluummnn • HHoorriizzoonnttaall aarrmm • DDrriilllliinngg hheeaadd
- 7. DDRRIILLLLIINNGG MMAACCHHIINNEE OOPPEERRAATTIIOONN • RReeaammiinngg • BBoorriinngg • CCoouunntteerr bboorriinngg • CCoouunntteerr ssiinnkkiinngg • SSppoott ffaacciinngg • TTaappppiinngg
- 8. RREEAAMMIINNGG • IItt iiss aa pprroocceessss ooff ssmmooootthhiinngg tthhee ssuurrffaaccee ooff ddrriilllleedd hhoolleess wwiitthh aa ttooooll.. • TTooooll iiss ccaalllleedd aass rreeaammeerr.. • IInniittiiaallllyy aa hhoollee iiss ddrriilllleedd sslliigghhttllyy ssmmaalllleerr iinn ssiizzee.. • DDrriillll iiss rreeppllaacceedd bbyy rreeaammeerr.. • SSppeeeedd iiss rreedduucceedd ttoo hhaallff tthhaatt ooff tthhee ddrriilllliinngg..
- 9. BBOORRIINNGG • IItt iiss pprroocceessss ccaarrrriieedd oonn aa ddrriilllliinngg mmaacchhiinnee ttoo iinnccrreeaassee tthhee ssiizzee ooff aann aallrreeaaddyy ddrriilllleedd hhoollee.. • IInniittiiaallllyy aa hhoollee iiss ddrriilllleedd ttoo tthhee nneeaarreesstt ssiizzee aanndd uussiinngg aa bboorriinngg ttooooll tthhee ssiizzee ooff tthhee hhoollee iiss iinnccrreeaasseedd..
- 10. SSPPOOTT FFAACCIINNGG • IItt iiss aa ffiinniisshhiinngg ooppeerraattiioonn ttoo pprroodduuccee ffllaatt rroouunndd ssuurrffaaccee uussuuaallllyy aarroouunndd aa ddrriilllleedd hhoollee,, ffoorr pprrooppeerr sseeaattiinngg ooff bboolltt hheeaadd oorr nnuutt.. • IItt iiss ddoonnee uussiinngg aa ssppeecciiaall ssppoott ffaacciinngg ttooooll..
- 11. TTAAPPPPIINNGG • PPrroocceessss ooff ccuuttttiinngg iinntteerrnnaall tthhrreeaaddss wwiitthh aa tthhrreeaadd ttooooll ccaalllleedd aass ttaapp.. • TTaapp iiss aa fflluutteedd tthhrreeaaddeedd ttooooll uusseedd ffoorr ccuuttttiinngg iinntteerrnnaall tthhrreeaadd • CCuuttttiinngg ssppeeeedd iiss vveerryy ssllooww..