An Engineering Comparison of Die Cast Zinc and Injection Molded Polymers United States Testing Company

Format:

Conference/Event

Author/Creator:

Lazar, L. S., author.

Conference Name:

1971 Automotive Engineering Congress and Exposition (1971-01-11 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1971

Summary:

An engineering evaluation conducted by the International Lead Zinc Research Organization, Incorporated (ILZRO) has produced data which verify that die cast zinc is stronger, stiffer, and more thermally resistant than five major engineering thermoplastics-polycarbonate, polyacetal, nylon, ABS (acrylonitrile-butadiene-styrene), and polypropylene-under identical test procedures. However, since zinc is five to eight times more dense than the polymers tested (and most other unfilled polymers), the plastics industry often stresses the high strength-to-weight ratios and low cost per cubic inch of plastics as more than offsetting advantages. The question facing the design engineer, therefore, is: which material is the best choice for the particular application; that is, which will provide the required strength and stiffness at lowest cost? On the basis of the comparative tests performed in this research effort, the SAE 903 zinc die casting alloy is demonstrably the superior material on a cost-performance basis

Notes:

Vendor supplied data

Publisher Number:

710199

Access Restriction:

Restricted for use by site license