Transcription of Plastic Part Design for Injection Molding
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Plastic Part Designfor Injection MoldingAn Introduction2nd EditionRobert A. MalloyISBNs978-1-56990-436-71-56990-436- 7 HANSERH anser Publishers, Munich Hanser Publications, CincinnatiSample Chapter 5: Prototyping and Experimental Stress Analysis5 Prototyping and Experimental Prototyping Plastic PartsIt is generally best to develop both models and prototype parts during the plastics productdevelopment process. The prototyping stage of product development is crucial to the successof a project, yet this aspect of development is often hurried through or underfunded. Proto-type parts are used for communications, engineering studies, market studies/promotions, toevaluate product manufacturability/assembly characteristics, and to verify CAD model orprint accuracy.
5.1 Prototyping Plastic Parts 289 Figure 5.3 CNC machining of prototype plastic parts It can also be good practice to stress-relieve the blank or the workpiece at an intermediate stage of machining to relieve any internal extrusion or machining related stresses which
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