Heat treatment strategically strengthened door beam

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 fix...

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Bibliographic Details
Main Authors TJOELKER TODD W. J, LIBRIANI ALESSANDRO, BOWMAN JOHN D, KOLLARITSCH JOSEPH C
Format Patent
LanguageEnglish
Published 19.07.2005
Edition7
Subjects
PERFORMING OPERATIONS
REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES
TRANSPORTING
VEHICLES IN GENERAL
WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES
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Summary: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.
Bibliography:Application Number: US20020136593