Air-permeable metal makes self-clamping fixtures. (Tooling).Metapor, a micro-porous aluminum that eliminates the need to drill vacuum holes in thermoform tooling, is now finding use in vacuum hold-down fixtures to hold parts for secondary operations. The material, made by Portec North America North America, third largest continent (1990 est. pop. 365,000,000), c.9,400,000 sq mi (24,346,000 sq km), the northern of the two continents of the Western Hemisphere. , div. of Nest Technologies, Studio City Calif., is made of powdered aluminum and an epoxy epoxy Any of a class of thermosetting polymers, polyethers built up from monomers with an ether group that takes the form of a three-membered epoxide ring. The familiar two-part epoxy adhesives consist of a resin with epoxide rings at the ends of its molecules and a curing binder binder: see combine. An earlier Microsoft Office workbook file that let users combine related documents from different Office applications. The documents could be viewed, saved, opened, e-mailed and printed as a group. . A proprietary process creates a metal containing 15% empty space with interconnecting pores of 15-16 micron diam. and 131 pores/sq in. As a result, Metapor can create uniform surface vacuum for clamping parts to fixtures for cooling, CNC (Computerized Numerical Control) See numerical control. CNC - Collaborative Networked Communication trimming, or machining. Tel: (818) 761-6500, www.nesttechnologies.com |
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