公开(公告)号：US20100101296A1

公开(公告)日：2010-04-29

申请号：US12428005

申请日：2009-04-22

Applicant: Christian HANDING

Inventor： Christian HANDING

IPC: B21D35/00 ,  B21D37/16

CPC classification number: C21D9/48 ,  B21D22/022 ,  B21D43/20 ,  C21D1/185 ,  C21D1/673 ,  C21D8/0205 ,  C21D8/0294 ,  C21D9/46 ,  C21D2221/00

Abstract: A steel part with regions of different ductility is made by first loading the part onto a heatable rack and then heating the rack with the part on it in a furnace to a temperature above the AC3 point of the part. The part is then removed from the rack and loaded while still above the AC3 point into a press where it is shaped and hardened. In the press the part is engaged by tools that deform it and that cool it quickly to well below the AC3 point. Finally, before the rack has cooled substantially, the shaped and hardened part is taken out of the press and placed on the rack with predetermined regions of the part in heat-conducting engagement with the rack such that the ductility of the predetermined regions is increased by transfer of the residual heat from the rack to the predetermined regions.

Abstract translation: 具有不同延展性区域的钢部件通过首先将部件加载到可加热的支架上，然后将其上的部件在炉中加热到高于部件的AC3点的温度来制造。 然后将该部件从机架中取出并在AC3点上方加载到成型和硬化的压机中。 在印刷机中，零件由使其变形的工具接合，并快速冷却到AC3以下。 最后，在机架大致冷却之前，将成形和硬化的部件从压机中取出并放置在机架上，其中部件的预定区域与机架导热接合，使得预定区域的延展性增加 将剩余热量从机架转移到预定区域。