- 专利标题: FRONT AXLE BEAM AND PRODUCTION METHOD THEREOF
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申请号: US16499454申请日: 2018-04-03
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公开(公告)号: US20200039291A1公开(公告)日: 2020-02-06
- 发明人: Kenji TAMURA , Kenji IMANISHI , Sam Soo HWANG , Kunihiro YABUNO , Kunihiro YOSHIDA , Koichiro ISHIHARA
- 申请人: NIPPON STEEL CORPORATION
- 优先权: JP2017-074955 20170405
- 国际申请: PCT/JP2018/014215 WO 20180403
- 主分类号: B60B35/06
- IPC分类号: B60B35/06 ; B21K1/12 ; B21J5/06
摘要:
The production method disclosed is a method for producing a front axle beam. The production method includes a die forging step and a bending step. The die forging step is a step of forging a steel material with dies to produce a forged product including a rough web part, which is to be formed into a web part, and four plate-shaped rough flange parts protruding frontward and rearward from an upper side and a lower side of the rough web part, respectively. The bending step is a step of pressing at least one specified rough flange part, which is at least one of the four rough flange parts, with a first die to form a bent portion in the specified rough flange part such that the bent portion is bent inward in an up-down direction of the forged product.
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