Method and tool for calibration of hollow profile component produced by extrusion for automobile manufacturing

The present invention relates to a method for the calibration or end sizing of a hollow profile component (100) produced by extrusion for automobile manufacturing. The method comprises the following steps that: a hollow profile component (100) is inserted into the cavity of an opened press tool (200) and closing the press tool (200); expandable mandrels (230, 240) are introduced into the open profile ends (130) of the hollow profile component (100); the hollow profile component (100) is calibrated or end-sized by applying force simultaneously on the outside and on the inside; and the expandable mandrels (230, 240) are retracted to open the press tool (200) and remove the hollow profile component (100). The present invention further relates to a press tool (200) and a method for manufacturing a hollow profile component (100). 本发明涉及种用于精整通过挤压加工产生的汽车制造用的空心型材构件(100)的方法，该方法包括以下步骤：将空心型材构件(100)放置到打开的冲压模具(200)的模腔中并且关闭冲压模具(200)；将可扩张的芯轴(230、240)插入到空心型材构件(100)的敞开的型材末端(130)中；通过同时从外部和内部施加力来精整空心型材构件(100)；退出可扩张的芯轴(230、240)，打