Journal of the Society of Motion Picture Engineers ( Volume: 30, Issue: 4, April 1938)

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Die-Castings for Photographic Appliances

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Article Type: Research Article
Abbreviated Title: J SMPE
Volume: 30, No. 4, pp. 432–448
Abstract: Die-castings are defined as castings made by forcing molten metal into a metallic mold or die. The alloy most generally used is of the zinc base type, having a tensile strength of approximately 40,000 lbs. per sq. inch. For photographic appliances, the alloys of lower specific gravity are more desirable. Aluminum base alloys are used more extensively in photographic appliances for that reason. Physical properties of various aluminum die-casting alloys are given. Since low specific gravity is of prime importance in castings used for photographic appliances, the development of the process of die-casting the lightest of all commercial metals, magnesium, is of particular interest to motion picture engineers. Magnesium is one-third as heavy as aluminum, and magnesium die-castings are now being used wherever light weight is important. Physical properties of magnesium die-castings are given. Reference is also made to die-casting brass and German silver, a recent development.
Publication Date: 1938-04-01
DOI: 10.5594/J16601
ISSN: Print: 0097-5834
Link: https://doi.org/10.5594/J16601
Author(s): J. C. Fox
Copyright: © 1938 Society of Motion Picture and Television Engineers, Inc.

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J. C. Fox; Die-Castings for Photographic Appliances, Journal of the Society of Motion Picture Engineers ( Volume: 30, Issue: 4, April 1938); SMPTE, 1938. Available at https://doi.org/10.5594/J16601

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J. C. Fox; Die-Castings for Photographic Appliances, Journal of the Society of Motion Picture Engineers ( Volume: 30, Issue: 4, April 1938); SMPTE, 1938. Available at https://doi.org/10.5594/J16601

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J. C. Fox; Die-Castings for Photographic Appliances, Journal of the Society of Motion Picture Engineers ( Volume: 30, Issue: 4, April 1938); SMPTE, 1938. Available at https://doi.org/10.5594/J16601

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<span class="citation">J. C. Fox; <cite>Die-Castings for Photographic Appliances</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 30, Issue: 4, April 1938); SMPTE, 1938. Available at <a href="https://doi.org/10.5594/J16601" target="_blank" rel="noopener">https://doi.org/10.5594/J16601</a></span>

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J. C. Fox; Die-Castings for Photographic Appliances, Journal of the Society of Motion Picture Engineers ( Volume: 30, Issue: 4, April 1938); SMPTE, 1938
doi: 10.5594/J16601
url: https://doi.org/10.5594/J16601

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<li>
J. C. Fox; <cite id="bib-10-5594-j16601">Die-Castings for Photographic Appliances</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 30, Issue: 4, April 1938); SMPTE, 1938
<span class="doi">10.5594/J16601</span>
</li>