公开(公告)号：US20070107203A1

公开(公告)日：2007-05-17

申请号：US11586253

申请日：2006-10-25

申请人： Dirk Kroger ,  Hans-Jurgen Knaup

发明人： Dirk Kroger ,  Hans-Jurgen Knaup

IPC分类号： B23P13/04

CPC分类号： B62D25/04 ,  B21D28/10 ,  B21D53/88 ,  Y10T29/49995

摘要： A shaped part is made by forming in a flat steel plate a thickness-reducing groove and hot-shaping and hardening the flat steel plate into a three-dimensional shape. Then the plate formed with the groove is cooled, and a piece is sheared off the cooled plate along a cut line in the groove.

摘要翻译： 通过在平钢板中形成厚度减小槽并将扁钢板热成型硬化成三维形状而制成成形部。 然后将形成有凹槽的板冷却，并且沿着槽中的切割线将片材从冷却板上剪切出来。

公开(公告)号：US20070107819A1

公开(公告)日：2007-05-17

申请号：US11599604

申请日：2006-11-14

申请人： Ludger Gehringhoff ,  Dirk Kroger ,  Elisabeth Danger

发明人： Ludger Gehringhoff ,  Dirk Kroger ,  Elisabeth Danger

IPC分类号： C21D8/00

CPC分类号： C21D1/32 ,  B62D21/152 ,  B62D29/007 ,  C21D1/673 ,  C21D8/0205 ,  C21D9/0068 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/38 ,  C23C2/02 ,  C23C8/02 ,  C23C10/02

摘要： A structural motor-vehicle element is made by hot-shaping and press-hardening a steel workpiece into the element and thereafter heating the hot-shaped and press-hardened workpiece to between 320° C. and 400° C. The steel workpiece constitutes in weight percent, Carbon (C)0.18% to 0.3% Silicon (Si)0.1% to 0.7% Manganese (Mn)1.0% to 2.5% Phosphorus (P)max. 0.025% Chromium (Cr)up to 0.8% Molybdenum (Mo)up to 0.5% Sulfur (S)max. 0.01% Titanium (Ti)0.02% to 0.05% Boron (B)0.002% to 0.005% Aluminum (Al)0.01% to 0.06% the rest iron including impurities caused by the smelting process.