公开(公告)号：WO2020053734A1

公开(公告)日：2020-03-19

申请号：PCT/IB2019/057575

申请日：2019-09-09

申请人： ARCELORMITTAL

发明人： MACHADO AMORIM, Tiago ,  MICHAUT, Stéphanie ,  HELMER, Jean-Marie ,  BERTHO, Pascal

IPC分类号： B23K11/11 ,  B23K101/00 ,  B23K101/34 ,  B23K103/04

摘要： The present invention relates to an assembly of at least two metallic substrates spot welded together through at least one spot welded joint, a method for the manufacture of the assembly according to the present invention, such method comprising two steps and the use of this assembly for the manufacture of automotive vehicle.

公开(公告)号：WO2020053735A1

公开(公告)日：2020-03-19

申请号：PCT/IB2019/057577

申请日：2019-09-09

申请人： ARCELORMITTAL

发明人： MACHADO AMORIM, Tiago ,  MICHAUT, Stéphanie ,  BROSSARD, Maxime ,  BERTHO, Pascal ,  HELMER, Jean-Marie

IPC分类号： B23K11/11 ,  B23K101/00 ,  B23K101/34 ,  B23K103/04

摘要： The present invention relates to a method for the manufacture of an assembly of at least two metallic substrates spot welded together through at least one spot welded joint, such method comprising two steps, the assembly obtainable according to this method and the use of this assembly for the manufacture of automotive vehicle.

公开(公告)号：WO2023042018A1

公开(公告)日：2023-03-23

申请号：PCT/IB2022/058005

申请日：2022-08-26

申请人： ARCELORMITTAL

发明人： COBO, Sebastian ,  DUMONT, Alice ,  DIETSCH, Pascal ,  MICHAUT, Stéphanie

IPC分类号： C21D1/18 ,  C21D1/28 ,  C21D1/673 ,  C21D8/02 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C23C2/06 ,  C23C2/12

摘要： The invention deals with a press hardened steel part having a composition comprising, by weight percent: C 0.2 - 0.34 %, Mn 0.50 – 1.24 %, Si 0.5 – 2 %, P ≤ 0.020 %, S ≤ 0.010 %, N ≤ 0.010 %, and comprising optionally one or more of the following elements: Al: ≤0.2 %, Cr ≤ 0.8 %, Nb ≤ 0.06 %, Ti ≤ 0.06 %, B ≤ 0.005% Mo ≤ 0.35% the remainder of the composition being iron and unavoidable impurities resulting from the smelting. The press hardened steel part has a microstructure comprising, in surface fraction, 95% or more of tempered martensite and 5% or less of bainite, austenite or ferrite.

公开(公告)号：WO2023041953A1

公开(公告)日：2023-03-23

申请号：PCT/IB2021/058358

申请日：2021-09-14

申请人： ARCELORMITTAL

发明人： MICHAUT, Stéphanie ,  DUMONT, Alice ,  COBO, Sebastian ,  DIETSCH, Pascal

IPC分类号： C21D1/18 ,  C21D1/28 ,  C21D1/673 ,  C21D8/02 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C23C2/06

摘要： The invention deals with a press hardened steel part having a composition comprising, by weight percent: C 0.2 - 0.34 %, Mn 0.50 – 1.24 %, Si 0.5 – 2 %, P ≤ 0.020 %, S ≤ 0.010 %, N ≤ 0.010 %, and comprising optionally one or more of the following elements: Al: ≤0.2 %, Cr ≤ 0.8 %, Nb ≤ 0.06 %, Ti ≤ 0.06 %, B ≤ 0.005% Mo ≤ 0.35% the remainder of the composition being iron and unavoidable impurities resulting from the smelting. The press hardened steel part has a microstructure comprising, in surface fraction, 95% or more of tempered martensite and 5% or less of bainite, austenite or ferrite.

公开(公告)号：WO2020053736A1

公开(公告)日：2020-03-19

申请号：PCT/IB2019/057579

申请日：2019-09-09

申请人： ARCELORMITTAL

发明人： MACHADO AMORIM, Tiago ,  BROSSARD, Maxime ,  MICHAUT, Stéphanie ,  HELMER, Jean-Marie

IPC分类号： B23K11/11 ,  B23K101/34 ,  B23K103/04 ,  B23K101/00

摘要： The present invention relates to a method for the manufacture of an assembly of at least two metallic substrates spot welded together through at least one spot welded joint, such method comprising two steps, the assembly obtainable according to this method and the use of this assembly for the manufacture of automotive vehicle.