Heat treatment strategically strengthened door beam

Details Heat treatment strategically strengthened door beam Heat treatment strategically strengthened door beam

2005-07-19

2005-07-19

Friedman, Carl D. (Department: 3635)

Static structures (e.g., buildings)

Processes

Fabrication of member, module, etc.

C052S749100, C052S749100, C052S749100, C148S567000, C148S639000, C148S641000, C148S643000, C148S646000, C296S146600, C296S182100, C049S502000

Reexamination Certificate

active

06918224

ABSTRACT:
A method of forming a vehicle component, particularly an elongated impact beam, having an open section structure, in a manner to provide predetermined strategically strengthened portions, comprising the steps of cold forming unhardened steel into a workpiece having mounting surfaces, selectively fixturing the mounting surfaces, static induction heating the workpiece with lengthwise surface eddy currents on selected portions, followed by quenching of the fixtured heated workpiece to form strengthened portions, and unfixturing the resulting component. Also disclosed is apparatus to accomplish this, and the resulting novel vehicle component.

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