发明公开
- 专利标题: STEEL MATERIAL FOR HOT FORMING, HOT-FORMED MEMBER, AND MANUFACTURING METHOD THEREFOR
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申请号: US18286166申请日: 2022-08-12
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公开(公告)号: US20240182996A1公开(公告)日: 2024-06-06
- 发明人: Sea-Woong Lee , Jin-Keun Oh , Seong-Woo Kim , Sang-Heon Kim , Hyo-Sik Chun , Sang-Bin Han
- 申请人: POSCO CO., LTD
- 申请人地址: KR Pohang-si, Gyeongsangbuk-do
- 专利权人: POSCO CO., LTD
- 当前专利权人: POSCO CO., LTD
- 当前专利权人地址: KR Pohang-si, Gyeongsangbuk-do
- 优先权: KR 20210109302 2021.08.19
- 国际申请: PCT/KR2022/012070 2022.08.12
- 进入国家日期: 2023-10-09
- 主分类号: C21D9/46
- IPC分类号: C21D9/46 ; C21D6/00 ; C21D8/02 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/22 ; C22C38/28 ; C22C38/32 ; C23C2/02 ; C23C2/12 ; C23C2/40
摘要:
The present invention relates to: a steel material for hot forming, used for a vehicle and the like; a hot-formed member; and a method for manufacturing same. In the method, when the formed steel material is skin pass rolled, rolling pressure and roughness of skin pass rolling rolls are controlled so that bendability can be improved.
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