发明申请
US20090305797A1 METHOD FOR FORMING HOLLOW PROFILES 有权
形成中空轮廓的方法

METHOD FOR FORMING HOLLOW PROFILES
摘要:
A method for forming hollow profiles is disclosed. In one exemplary method, a hollow profile is guided through a die in a processing direction and fixed by a mandrel such that at the die, the hollow profile has a material flow velocity in this processing direction (2), in which the method the mandrel has a drawing velocity in the processing direction that is greater than the material flow velocity.
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