COMPUTER-AIDED DESIGN OF A RESPIRATOR FACEPIECE MODEL

Authors
  1. Hidson, D.J.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
The paper describes the evaluation and acquisiton of CAD/CAM technology required for the design and development of complex sculptured surfaces for molding rubber and elastomeric materials. Benchmark tests incorporating the complex 3-D geometry that such a design project must handle were performed with various systems vendors and a time-sharing system was chosen. Geometry was constructed using bi-parametric cubic patches and cutter paths were plotted over these surfaces. A post-processor has been prepared for a three-axis numerical control milling machine and a cavity cut to vacuum-form a thermoplastic rubber for a prototype.
Report Number
902 —
Date of publication
15 Dec 1984
Number of Pages
67
DSTKIM No
86-00518
CANDIS No
106139
Format(s):
Hardcopy;Originator's fiche received by DSIS

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