Permeable Metal Die for Plastic Injection Molding

Paper #:
  • 950565

Published:
  • 1995-02-01
Citation:
Katoh, T., Nishikawa, K., and Endoh, M., "Permeable Metal Die for Plastic Injection Molding," SAE Technical Paper 950565, 1995, https://doi.org/10.4271/950565.
Pages:
15
Abstract:
Permeable metal dies are used for plastic injection molding and can be manufactured by process such as conventional machining, electro -discharge machining and etching.The main feature of these metal dies is the permeability they posses throughout their entire mass which eliminates gas-related problems. Current applications include injection dies for production of various automotive parts, such as steering column covers and door trims.Results of application of the permeable metal die in Injection Molding: 1. Permeable metal dies produce high quality products while eliminating defects like burning, short-shot, sink marks and irregular luster. 2. Permeable metal dies produce low-gloss ratio products without gloss-less treatment. In this paper, the methods of fabrication for the permeable metal die, the characteristics of the material, and its effectiveness in the production of plastic automotive parts are reported.
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