Automobile suspension part
First Claim
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1. An aluminum alloy automobile suspension part formed by forging, and comprising a rib, a web formed at an end of the rib, and a through-hole in the web, wherein a coarsened recrystallized section with a recrystallization ratio of >
- 10% does not occur in the rib, whereinthe rib is part of a normal section where a recrystallization ratio is ≦
10%, a yield strength of said normal section is 270 MPa or larger, anda minimum length between a rib end and a through-hole end is 6 mm or larger.
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Abstract
A lightweight automobile suspension part having high strength is an aluminum alloy automobile suspension part having a through-hole, which has a yield strength of a normal section as a region where a crystal grain is not coarsened being 270 MPa or larger, and a minimum length between a rib end as a predetermined region on a side of the through-hole in a rib and a through-hole end as a predetermined region on a side of the through-hole in a web is 6 mm or larger.
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Citations
2 Claims
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1. An aluminum alloy automobile suspension part formed by forging, and comprising a rib, a web formed at an end of the rib, and a through-hole in the web, wherein a coarsened recrystallized section with a recrystallization ratio of >
- 10% does not occur in the rib, wherein
the rib is part of a normal section where a recrystallization ratio is ≦
10%, a yield strength of said normal section is 270 MPa or larger, anda minimum length between a rib end and a through-hole end is 6 mm or larger. - View Dependent Claims (2)
- 10% does not occur in the rib, wherein
Specification