General Introduction

Need to bring products to market quickly concurrent

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± Need to bring products to market quickly ± Concurrent Engineering (Simultaneous Engineering ) has been introduced • All disciplines are involved with early design stages • Increased communication between and within disciplines • Tries to optimize elements involved with life cycle ± Life Cycle Engineering: Considers design, production, distribution, use, disposal/recycling
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Page 1-7 Computer Aided Engineering (CAE) ¾ Computer Aided Design ± Solid Modeling • Illustration and communication • Improved Design • Easier Modifications ¾ Computer Aided Analysis ± Stress and strain analysis using finite element modeling and analysis software ± Dynamics analysis using CAE software ± Temperature Effects • More realistic models can be analyzed ¾ Computer Aided Prototyping ± Rapid Prototyping • Test form, fit (and function) ¾ Computer Aided Manufacturing ± Programming Computer Numerically Controlled Machines • CNC Milling •C N C L a t e ± Programming robots for material handling and assembly ± Designing tools, dies and fixtures Page 1-8 Page 1-8 Optimization and Over Design ¾ Over Deign: ± Results in too costly products • Bulky Parts • Materials are too high in quality • Precision is higher than needed ¾ Optimization: Iterative design process to improve the objective (improve performance, reduce cost, maximize return on investment) ± Constraints may include a minimum life Page 1-9 Page 1-9 Design for Manufacture, Assembly, Disassembly, and Service ¾ Design for Manufacturing (DFM) ± Design and manufacturing should be interrelated ± Design to reduce manufacturing costs ¾ Design for Assembly (DFA) ± Components should be easy to assemble •E a s y t o g a b • Easy to fit the proper components with each other to hinder misfit • Fasteners, adhesives, welding, soldering, brazing ¾ Design for Manufacturing and Assembly (DFMA) ¾ Design for Disassembly ± Components should be able to be removed ¾ Design for Service ± Reach components easily Page 1-10 Page 1-10 Selecting Materials
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Need to bring products to market quickly Concurrent...

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