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公开(公告)号:US20120216920A1
公开(公告)日:2012-08-30
申请号:US13390537
申请日:2010-11-08
申请人: Seung-Man Nam , Su-Hong Chae , Min-Suck Kwon , Hyo-Sub Kim , Hee-Joong Im , Bo-Ryong Lee , Man-Bean Moon
发明人: Seung-Man Nam , Su-Hong Chae , Min-Suck Kwon , Hyo-Sub Kim , Hee-Joong Im , Bo-Ryong Lee , Man-Bean Moon
CPC分类号: C21D9/0068 , B21D22/022 , B21D53/88 , B23K26/26 , B23K2101/006 , B23K2101/185 , B23K2101/34 , B23K2103/04 , B23K2103/18 , C21D1/673 , C21D6/002 , C21D6/005 , C21D6/008 , C21D7/02 , C21D8/005 , C21D8/0221 , C21D8/0247 , C21D9/46 , C21D2251/00 , C21D2251/02 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/10 , C22C38/12 , C22C38/14 , C22C38/20 , C22C38/22 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/54 , C22C38/58 , C22C38/60 , C23C2/06 , C23C2/12
摘要: Disclosed herein is method of manufacturing an automobile part having different local strengths, more particularly, a method of manufacturing an automobile part using a steel sheet subjected to heat-treatment hardening and having different local thicknesses. The method includes preparing blank sheets using steel sheets subjected to heat-treatment hardening and having different thicknesses or different material properties according to desired strength; forming a blank assembly by joining the blank sheets to each other via laser welding; cold-pressing the blank assembly; and heating the cold-pressed part to a temperature of AC3 or more, followed by quenching the cold-formed part received within dies to remove residual stress while increasing strength of the automobile part.
摘要翻译: 这里公开了制造具有不同局部强度的汽车部件的方法,更具体地,涉及使用经受热处理硬化并且具有不同局部厚度的钢板制造汽车部件的方法。 该方法包括使用经过热处理硬化的钢板,根据所需强度制备具有不同厚度或不同材料特性的坯料; 通过激光焊接将坯料彼此接合而形成坯料组件; 冷压坯料; 并将冷压部加热至AC3以上的温度,然后在容纳在模具内的冷成型部件淬火,以消除残余应力,同时提高汽车部件的强度。