LIGHTWEIGHT, CRASH-SENSITIVE AUTOMOTIVE COMPONENT
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United States of America Patent
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Issued Date -
Aug 18, 2016
app pub date -
Apr 26, 2016
filing date -
Apr 26, 2016
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Abstract
The present invention provides a easting having increased crashworthiness including an aluminum alloy of about 6.0 wt % to about. 8.0 wt % Si; about 0.12 wt % to about 0.25 wt % Mg; less than or equal to about 0.35 wt % Cu; less than or equal to about 4.0 wt % Zn; less than or equal to about 0.6 wt % Mn; and less than or equal to about 0.15 wt % Fe, wherein the east body is treated to a T5 or T6 temper and has a tensile strength ranging from 100 MPa to 180 MPa and has a critical fracture strain greater than 10%. The present invention further provides a method of forming a casting having increased crashworthiness.
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