Method of manufacturing control arm using variable curvature...

Details Method of manufacturing control arm using variable curvature... Method of manufacturing control arm using variable curvature...

2008-09-05

2010-12-14

Fleming, Faye M. (Department: 3616)

Land vehicles

Wheeled

Running gear

Reexamination Certificate

active

07850182

ABSTRACT:
According to the invention, in extrusion molding of a control arm of aluminum, control arm is manufactured by a variable curvature extruding process that simultaneously form straight sections and a curved section in extruding a raw material, without pressing forming that is accompanied by solution heat-treatment for forming a carrier fastening end and a bush fastening end at both ends of control arm. Therefore, since the press forming that is required in the extrusion molding of control arm is removed, the manufacturing process is simplified and the manufacturing cost is reduce. Further, the entire extrusion profile cross section of control arm has a double-hollow closed cross section to distribute loads, such that durability of a load-concentrated portion of control arm is increased and the loads can be more effectively distributed.

REFERENCES:
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patent: 6843490 (2005-01-01), Raidel et al.
patent: 2004/0021288 (2004-02-01), Raidel et al.
patent: 2005/0099060 (2005-05-01), Choi
patent: 2005/0274213 (2005-12-01), Kim
patent: 2006/0033300 (2006-02-01), Shin
patent: 2006/0033303 (2006-02-01), Shin
patent: 2006/0070481 (2006-04-01), Kim
patent: 2007/0040345 (2007-02-01), Hardtke et al.
patent: 2008/0224435 (2008-09-01), Holt
patent: 10-2007-0105142 (2007-10-01), None
patent: 10-0829457 (2008-05-01), None
English language Abstract of KR 10-2007-0105142, Oct. 30, 2007.
English language Abstract of KR 10-0829457, May 7, 2008.

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