The document discusses rapid prototyping and tooling, specifically model slicing and tool path generation. It explains that the part is divided into slices for rapid prototyping. Tool path generation algorithms are used to efficiently machine object surfaces and control tool direction and speed. Parametric equations are used to represent three dimensional curved lines and surfaces, with surfaces defined by control points.
What is process planning .Difficulties in traditional process planning,CAPP Model,Types of CAPP ,1.Retrieval type CAPP (variant) systems.
2.Generative CAPP systems.
3.Hybrid CAPP systems.
Process planning system , Machinability data systems , Benefits of CAPP
BAHIR DAR UNIVERSITYBAHIR DAR INSTITUTE OF TECHNOLOGY (BiT)FACULTY OF MECHANICAL AND INDUSTRIAL ENGINEERING Rapid Prototyping & Reverse Engineering [MEng6123]
Rapid Prototyping Techniques
Rapid Prototyping Techniques
They can be categorized by material: photopolymer, thermoplastic, and adhesives.
Photopolymer systems start with a liquid resin, which is then solidified by exposure to a specific wavelength of light.
Thermoplastic systems begin with a solid material, which is then melted and fuses upon cooling.
The adhesive systems use a binder to connect the primary construction material
Rapid Prototyping Techniques
The initial state of material can come in either
solid, liquid or powder state
The current range materials include
paper, polymer, nylon, wax, resins, metals and ceramics.
Liquid Based RP Systems
Solidification of a Liquid Polymer
These process involve the solidification of a resin via electromagnetic radiation
There are different processes in this category
Stereolithography (SL)
Liquid Thermal Polymerization (LTP)
Beam Interference Solidification (BIS)
Solid Ground Curing (SGC)
Objet Quadra Process (Objet)
Holographic Interference Solidification
Liquid Based RP Systems
Stereolithography (SL)
Principle of Operation
Patented in 1986,
Started the RP revolution
Developed by 3D Systems, Inc.
Most popular RP methods.
The technique builds 3D models from liquid photosensitive polymers that solidify when exposed to ultraviolet light.
Builds plastic parts a layer at a time by tracing a laser beam on the surface of a vat of liquid photopolymer.
The liquid photopolymer, quickly solidifies wherever the laser beam strikes the surface of the liquid
What is process planning .Difficulties in traditional process planning,CAPP Model,Types of CAPP ,1.Retrieval type CAPP (variant) systems.
2.Generative CAPP systems.
3.Hybrid CAPP systems.
Process planning system , Machinability data systems , Benefits of CAPP
BAHIR DAR UNIVERSITYBAHIR DAR INSTITUTE OF TECHNOLOGY (BiT)FACULTY OF MECHANICAL AND INDUSTRIAL ENGINEERING Rapid Prototyping & Reverse Engineering [MEng6123]
Rapid Prototyping Techniques
Rapid Prototyping Techniques
They can be categorized by material: photopolymer, thermoplastic, and adhesives.
Photopolymer systems start with a liquid resin, which is then solidified by exposure to a specific wavelength of light.
Thermoplastic systems begin with a solid material, which is then melted and fuses upon cooling.
The adhesive systems use a binder to connect the primary construction material
Rapid Prototyping Techniques
The initial state of material can come in either
solid, liquid or powder state
The current range materials include
paper, polymer, nylon, wax, resins, metals and ceramics.
Liquid Based RP Systems
Solidification of a Liquid Polymer
These process involve the solidification of a resin via electromagnetic radiation
There are different processes in this category
Stereolithography (SL)
Liquid Thermal Polymerization (LTP)
Beam Interference Solidification (BIS)
Solid Ground Curing (SGC)
Objet Quadra Process (Objet)
Holographic Interference Solidification
Liquid Based RP Systems
Stereolithography (SL)
Principle of Operation
Patented in 1986,
Started the RP revolution
Developed by 3D Systems, Inc.
Most popular RP methods.
The technique builds 3D models from liquid photosensitive polymers that solidify when exposed to ultraviolet light.
Builds plastic parts a layer at a time by tracing a laser beam on the surface of a vat of liquid photopolymer.
The liquid photopolymer, quickly solidifies wherever the laser beam strikes the surface of the liquid
Definition, need, raw materials, types of processes
Photo polymerization
Binder jetting, material extrusion
Powder bed fusion
Sheet lamination, direct energy deposition
Limitations, strengths
Programming methods.
Reverse Engineering
Definition
It is described in Wikipedia as:
… the process of extracting knowledge or design information from anything man-made. The process often involves disassembling something (a mechanical device, electronic component, computer program, or biological, chemical, or organic matter) and analyzing its components and workings in detail.
Reverse Engineering
Definition
A process of discovering the technological principles of a human made device, object or system through analysis of its structure, function and operation
Systematic evaluation of a product with the purpose of replication.
Design of a new part
Copy of an existing part
Recovery of a damaged or broken part
An important step in the product development cycle.
Lecture # 03 Design for Additive ManufacturingSolomon Tekeste
Design for Additive Manufacturing (DfAM)
DfAM - A generic term used to describe rules and parameters for a part design to be produced with an AM process
DfAM - is the practice of designing products to reduce or minimize manufacturing and assembly difficulties and costs,
DfAM aims
To take advantages of the unique AM technologies capabilities to design and optimize a product/component,
To utilize the characteristics of AM methods to improve the product/component functions according to the capability of the selected AM process.
In doing so, the designers should tailor their designs to maximize the advantages of AM methods, such as complex geometries and lightweight
Design Aspect and Design Consideration in AM
Design aspect
Any particular feature which can be quantified at the design phase.
Includes;
Geometric features of the part’s shape (overhangs, bores, channels, etc.)
Part’s programming parameters (layer thickness, orientation, etc.).
Design consideration
The result on the manufactured part
Specific properties of the process and quantified with certain key performance indicators.
These includes; surface roughness, accuracy, build time, etc.
Design Aspect and Design Consideration in AM
With conventional manufacturing processes, these aspects are mostly a concern for the production engineer rather than for the designer;
But, the significance of these aspects is high for the outcome in AM technologies.
This presentation is intended to enable the sales team about the capabilities of NX CAM.
It covers fundamentals of machining, types of CNC Machining and Advanced capabilities of NX CAM
Definition, need, raw materials, types of processes
Photo polymerization
Binder jetting, material extrusion
Powder bed fusion
Sheet lamination, direct energy deposition
Limitations, strengths
Programming methods.
Reverse Engineering
Definition
It is described in Wikipedia as:
… the process of extracting knowledge or design information from anything man-made. The process often involves disassembling something (a mechanical device, electronic component, computer program, or biological, chemical, or organic matter) and analyzing its components and workings in detail.
Reverse Engineering
Definition
A process of discovering the technological principles of a human made device, object or system through analysis of its structure, function and operation
Systematic evaluation of a product with the purpose of replication.
Design of a new part
Copy of an existing part
Recovery of a damaged or broken part
An important step in the product development cycle.
Lecture # 03 Design for Additive ManufacturingSolomon Tekeste
Design for Additive Manufacturing (DfAM)
DfAM - A generic term used to describe rules and parameters for a part design to be produced with an AM process
DfAM - is the practice of designing products to reduce or minimize manufacturing and assembly difficulties and costs,
DfAM aims
To take advantages of the unique AM technologies capabilities to design and optimize a product/component,
To utilize the characteristics of AM methods to improve the product/component functions according to the capability of the selected AM process.
In doing so, the designers should tailor their designs to maximize the advantages of AM methods, such as complex geometries and lightweight
Design Aspect and Design Consideration in AM
Design aspect
Any particular feature which can be quantified at the design phase.
Includes;
Geometric features of the part’s shape (overhangs, bores, channels, etc.)
Part’s programming parameters (layer thickness, orientation, etc.).
Design consideration
The result on the manufactured part
Specific properties of the process and quantified with certain key performance indicators.
These includes; surface roughness, accuracy, build time, etc.
Design Aspect and Design Consideration in AM
With conventional manufacturing processes, these aspects are mostly a concern for the production engineer rather than for the designer;
But, the significance of these aspects is high for the outcome in AM technologies.
This presentation is intended to enable the sales team about the capabilities of NX CAM.
It covers fundamentals of machining, types of CNC Machining and Advanced capabilities of NX CAM
Rapid prototyping (RP)
Definition
Rapid prototyping is a layer based automated fabrication process for making scaled 3-dimentional (3D) physical objects directly from 3D computer-aided design (CAD) data without using part depending tools.
More concisely, it is a process of building a prototype in one step.
Construction of the part or assembly is usually done using 3D printing or “additive layer manufacturing” technology.
Historical development
The first method for rapid prototyping became available in the late 1980s and was used to produce models and prototype parts.
Historical development
In today’s industry, RP exceeding the scope of prototype model creation, expands the possibility of the layered manufacturing, into the next level, where parts for real-world engineering applications are fabricated.
Historical development
Titanium powder-based 3D printing technology is reported recently with many successful stories.
For example, a 3D-printed bike has been fabricated with the Titanium powder.
CNC machines are making parts around the world for almost every industry. They create things out of plastics, metals, aluminum, wood and many other hard materials. The word “CNC” stands for Computer Numerical Control, but today everyone calls it CNC. So, how do you define a CNC machine? All automated motion control machines have three primary components – a command function, a drive/motion system, and feedback system. CNC machining is the process of using a computer-driven machine tool to produce a part out of solid material in a different shape
major project on dual shaper machine!!!!! , made by pankaj verma
aim : cutting motion of single shaper machine is improved , thus saves time , power and cost to any industry .
Autodesk has rapidly expanded its specialist manufacturing software portfolio in recent years. This portfolio not only includes a extensive line up of traditional CAM solutions, but some very unique solutions for emerging manufacturing techniques. Altogether, Autodesk’s portfolio of CAM products comprises it’s “Make” solution. See the range of solutions and how they can help your organization turn manufacturing into a competitive advantage.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
6. REASONS FOR USING DIRECT SLICING
•Reduced file Size (Over-faceted Models);
•Greater Model Accuracy;
•Reduced RP Machine Pre-processing Time;
•Elimination Of Repair Routines
DISADVANTAGES OF DIRECT SLICING
•Supports Cannot Easily Be Added To Nested Sections.
•Beam Compensation And Offsets Still Require Processing.
•More Designer Knowledge Is Required
10. TOOL PATH GENERATION
• To generate and control the tool direction and
speed in part manufacturing
• Two different approaches to generate the tool
path
• Normal surface and offset surface,
approximation are always used to the offset
surface
11. TOOL PATH ALGORITHM
• The tool path generation algorithm is to
efficient tool path to machine object surfaces,
classified tool path generation into
isoperimetric and non-isoperametric paths. the
accuracy of the surface depends on the desired
tolerance.
12. SURFACES
• A three dimensional curved line Can be represented in an
analytical form With the pair of functions:
Y = f (x)
Z = g(x)
• Can then be represented by the Vector function:
P(u) = (x(u), y(u), z(u))
The parameter (u) is defined in The range from [0 to 1]
13. Parametric equations for surfaces are Formulated with
two parameters [ u and v], A coordinate position on a
surface are Then represented by the parametric vector
Function:
P(u,v)=(X(u,v),Y(u,v),Z(u,v)
In design applications, a surface is often defined by
interactively specifying a set of control points which
indicate the surface.