发明授权
US09248490B2 Method of manufacturing a tubular structural part, and tubular structural part 有权
制造管状结构件的方法和管状结构件

Method of manufacturing a tubular structural part, and tubular structural part
摘要:
In a method of making a tubular structural part for a motor vehicle, a metal plate is contoured and preformed in at least one shaping step into a tubular body. Subsequently, the tubular body is end-formed into the structural part by internal high-pressure application while free contact regions snugly bear upon one another. The structural part is at least partially heated and quenched in a holding tool acted upon with a coolant.
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