VERFAHREN ZUR HERSTELLUNG EINES BAUTEILS AUS STAHL DURCH WARMUMFORMEN

    公开(公告)号:EP2831295A1

    公开(公告)日:2015-02-04

    申请号:EP13717418.1

    申请日:2013-02-27

    摘要: The invention relates to a method for producing a component from transformable steel by hot forming, in which a plate first is cut out of a strip or sheet as the pre-material, and is then heated to forming temperature and pre-formed, having an at least partially martensitic transformation structure after forming. Instead of a press mould hardening, the at least partially martensitic transformation structure is created in the pre-material, or in the plate to be formed, by austenitisation and quenching already before forming, and then the thus-conditioned plate is reheated after forming, while maintaining the at least partially martensitic transformation structure, to a temperature below the Ac
    1 transformation temperature, and formed at this temperature.

    摘要翻译: 本发明涉及一种通过热成型从可变形钢制造部件的方法,其中首先将板材作为预成型材料从带材或片材中切出,然后被加热至成形温度并预成型,其具有 形成后至少部分马氏体转变结构。 代替冲压模具硬化,通过已经在成型之前的奥氏体化和淬火,在预制材料或待形成的板中形成至少部分马氏体相变结构,然后在成形后再加热这样调节的板, 同时将至少部分马氏体转变结构保持在低于Ac1转变温度的温度,并在该温度下形成。