公开(公告)号：US20170232560A1

公开(公告)日：2017-08-17

申请号：US15585575

申请日：2017-05-03

Applicant: ArcelorMittal France

Inventor： Jean-Francois CANOURGUES ,  Aurelien PIC ,  Pascal VERRIER ,  Rene VIERSTRAETE ,  Wolfram EHLING ,  Bernd THOMMES

IPC: B23K33/00 ,  B23K9/025 ,  B23K9/23 ,  B23K10/02 ,  B23K26/26 ,  B23K26/322 ,  B23K26/362 ,  B23K26/40 ,  B23K31/02 ,  F16B5/08 ,  C22C38/32 ,  C22C38/28 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C21/02 ,  C23C2/12 ,  C23C2/40 ,  C21D9/50 ,  C21D6/00 ,  C23C2/28 ,  B23K9/00

CPC classification number: F16B5/08 ,  B23K9/23 ,  B23K26/32 ,  B23K33/00 ,  B23K2101/18 ,  B23K2101/34 ,  B23K2103/04 ,  B23K2103/08 ,  B23K2103/10 ,  B23K2103/50 ,  C23C2/26 ,  C23C28/021 ,  Y10T403/479

Abstract: A formed steel part is provided. The formed steel part includes a first steel plate having a first base, a first intermetallic alloy layer on the first base and a first metal alloy layer on the first intermetallic alloy layer, the first steel part having a first area without the first metal alloy layer and having at least part of the first intermetallic alloy layer; and a second steel plate having a second base, a second intermetallic alloy layer on the second base and a second metal alloy layer on the second intermetallic alloy layer, the second steel part having a second area without the second metal alloy layer and having at least part of the second intermetallic alloy layer in the second area. The first and second steel plates are joined together. The formed steel part may also include a butt-weld joining the first and second steel plates.

公开(公告)号：US20160010174A1

公开(公告)日：2016-01-14

申请号：US14865793

申请日：2015-09-25

Applicant: ArcelorMittal France

Inventor： Jean-Francois CANOURGUES ,  Aurelien PIC ,  Pascal VERRIER ,  Rene VIERSTRAETE ,  Wolfram EHLING ,  Bernd THOMMES

IPC: C21D9/50 ,  C22C38/28 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  B23K26/24 ,  B23K26/322 ,  B23K9/02 ,  B23K9/23 ,  C21D6/00 ,  C21D1/00 ,  B23K26/36 ,  B32B15/01 ,  C22C38/32

CPC classification number: B23K33/00 ,  B23K1/14 ,  B23K9/0026 ,  B23K9/02 ,  B23K9/025 ,  B23K9/23 ,  B23K10/02 ,  B23K26/21 ,  B23K26/24 ,  B23K26/26 ,  B23K26/32 ,  B23K26/322 ,  B23K26/36 ,  B23K26/362 ,  B23K26/40 ,  B23K31/02 ,  B23K37/003 ,  B23K2101/18 ,  B23K2101/34 ,  B23K2103/04 ,  B23K2103/08 ,  B23K2103/10 ,  B23K2103/50 ,  B32B15/012 ,  C21D1/00 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D9/50 ,  C21D2211/008 ,  C22C21/02 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/28 ,  C22C38/32 ,  C23C2/04 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40 ,  C23C10/22 ,  C23C28/021 ,  F16B5/08 ,  Y10T428/12229 ,  Y10T428/12271 ,  Y10T428/12389 ,  Y10T428/12396 ,  Y10T428/12486 ,  Y10T428/12493 ,  Y10T428/12757 ,  Y10T428/12764 ,  Y10T428/12972 ,  Y10T428/12979 ,  Y10T428/2495 ,  Y10T428/24967 ,  Y10T428/24975 ,  Y10T428/26 ,  Y10T428/263 ,  Y10T428/264 ,  Y10T428/265

Abstract: A method of forming a steel part is provided. The method includes the steps of coating a first steel plate to obtain a first precoat upon the first steel plate so as to define a first base, a first intermetallic alloy layer on the first base and a first metal alloy layer on the first intermetallic alloy layer. On a first face of the first steel plate the first metal alloy layer is removed in a first area of the first steel plate, while at least part of the first intermetallic alloy layer in the first area remains. A second steel plate is coated to obtain a second precoat upon the second steel plate so as to define a second base, a second intermetallic alloy layer on the second base and a second metal alloy layer on the second intermetallic alloy layer. On a second face of the second steel plate, the second metal alloy layer is removed in a second area of the second metal plate, while at least part of the second intermetallic alloy layer in the second area remains. After removal of the first and second metal alloy layers, the first steel plate is butt-welded to the second steel plate at the first and second areas to form a welded blank. A heat treatment is performed on the welded blank. The welded blank is shaped after the heat treatment into the steel part. A steel part is also provided.

Abstract translation: 提供了形成钢部件的方法。 该方法包括以下步骤：涂覆第一钢板以在第一钢板上获得第一预涂层，以便限定第一基体，第一基底上的第一金属间合金层和第一金属间合金层上的第一金属合金层 。 在第一钢板的第一面上，在第一钢板的第一区域中去除第一金属合金层，而第一区域中的第一金属间合金层的至少一部分残留。 涂覆第二钢板以在第二钢板上获得第二预涂层，以便限定第二基体，在第二基体上限定第二金属间合金层，在第二金属间合金层上形成第二金属合金层。 在第二钢板的第二面上，在第二金属板的第二区域中除去第二金属合金层，而第二区域中的第二金属间合金层的至少一部分残留。 在去除第一和第二金属合金层之后，第一钢板在第一和第二区域处与第二钢板对接，形成焊接坯料。 对焊接的坯料进行热处理。 焊后的坯料经热处理后成型为钢部件。 还提供钢件。

公开(公告)号：US20240042556A1

公开(公告)日：2024-02-08

申请号：US18381388

申请日：2023-10-18

Applicant: ArcelorMittal

Inventor： Francis SCHMIT ,  Rene VIERSTRAETE ,  Qingdong YIN ,  Wolfram EHLING

IPC: B23K26/60 ,  B23K26/26 ,  B23K26/322 ,  B23K26/348 ,  B23K9/173 ,  B23K26/211 ,  B23K9/167 ,  B23K26/40 ,  B23K26/361 ,  B23K28/02 ,  B23K26/32

CPC classification number: B23K26/60 ,  B23K26/26 ,  B23K26/322 ,  B23K26/348 ,  B23K9/173 ,  B23K26/211 ,  B23K9/167 ,  B23K26/40 ,  B23K26/361 ,  B23K28/02 ,  B23K26/32 ,  B23K2101/006

Abstract: A method for the preparation of steel sheets for fabricating a welded steel blank is provided. The method includes a step of removing at least part of the first and second metal alloy layers in first and second peripheral zones of pre-coated steel first and second sheets, respectively, by simultaneously ablating the first and second precoatings in the first and second peripheral zones of the pre-coated steel first and second sheets to define first and second ablation zones, the first and second peripheral zones being zones of the first and second principal faces closest to the median plane and located on either side of the median plane.

公开(公告)号：US20200277975A1

公开(公告)日：2020-09-03

申请号：US16828672

申请日：2020-03-24

Applicant: ArcelorMittal France

Inventor： Jean-Francois CANOURGUES ,  Aurelien PIC ,  Pascal VERRIER ,  Rene VIERSTRAETE ,  Wolfram EHLING ,  Bernd THOMMES

IPC: F16B5/08 ,  B23K9/23 ,  B23K26/32 ,  B23K33/00 ,  C23C2/26 ,  C23C28/02 ,  B32B15/01 ,  C21D1/00 ,  C21D6/00 ,  C21D9/50 ,  C22C21/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/28 ,  C22C38/32

Abstract: A method for creating a welded steel part includes providing a first steel plate having a first base, a first intermetallic alloy layer on the first base and a first metal alloy layer on the first intermetallic alloy layer; providing a second steel plate having a second base, a second intermetallic alloy layer on the second base and a second metal alloy layer on the second intermetallic alloy layer; butt welding the first and second steel plates at a weld so as to melt material from at least the first base, the first intermetallic alloy layer, the second base and the second intermetallic layer to form a molten weld material; austenizing the welded steel plates at a temperature between Ac1 and Ac3+100 degrees C. for a time greater than or equal to 20 seconds; and cooling the welded steel plates so as to render a uniform microstructure to the weld.

公开(公告)号：US20200016697A1

公开(公告)日：2020-01-16

申请号：US16567562

申请日：2019-09-11

Applicant: ArcelorMittal

Inventor： Francis SCHMIT ,  Rene VIERSTRAETE ,  Qingdong YIN ,  Wolfram EHLING

IPC: B23K26/60 ,  B23K26/32 ,  B23K26/322 ,  B23K26/26

Abstract: A method for the preparation of steel sheets for fabricating a welded steel blank is provided. The method includes procuring at least two pre-coated steel sheets, each having a pre-coating of an intermetallic alloy layer, topped by a layer of aluminum metal or aluminum alloy or aluminum-based alloy. The sheets have a principal face, an opposite principal face, and at least one secondary face. The sheets are positioned so a gap between 0.02 and 2 mm exists between the secondary faces. The secondary faces face each other. The positioning of the first and second sheets defines a median plane perpendicular to the principal faces. Layers of metal alloy are removed by melting and vaporization simultaneously on the principal faces, in a peripheral zone of the sheets, the peripheral zones being the zones of the principal faces closest in relation to the median plane.

公开(公告)号：US20190285103A1

公开(公告)日：2019-09-19

申请号：US16428381

申请日：2019-05-31

Applicant: ArcelorMittal France

Inventor： Jean-Francois CANOURGUES ,  Aurelien PIC ,  Pascal VERRIER ,  Rene VIERSTRAETE ,  Wolfram EHLING ,  Bernd THOMMES

IPC: F16B5/08 ,  B23K9/23 ,  B23K33/00 ,  C23C2/26 ,  C23C28/02 ,  B23K26/32

Abstract: A formed steel part is provided. The formed steel part includes a first steel plate having a first base, a first intermetallic alloy layer on the first base and a first metal alloy layer on the first intermetallic alloy layer, the first steel part having a first area without the first metal alloy layer and having at least part of the first intermetallic alloy layer; and a second steel plate having a second base, a second intermetallic alloy layer on the second base and a second metal alloy layer on the second intermetallic alloy layer, the second steel part having a second area without the second metal alloy layer and having at least part of the second intermetallic alloy layer in the second area. The first and second steel plates are joined together. The formed steel part may also include a butt-weld joining the first and second steel plates.

公开(公告)号：US20160008928A1

公开(公告)日：2016-01-14

申请号：US14865747

申请日：2015-09-25

Applicant: ArcelorMittal France

Inventor： Jean-Francois CANOURGUES ,  Aurelien PIC ,  Pascal VERRIER ,  Rene VIERSTRAETE ,  Wolfram EHLING ,  Bernd THOMMES

IPC: B23K31/02 ,  C23C28/02 ,  C23C2/26 ,  B23K9/23 ,  B23K9/00 ,  C22C38/00 ,  B23K26/21 ,  C22C38/32 ,  C22C38/28 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C23C2/04 ,  B23K26/322

CPC classification number: B23K33/00 ,  B23K1/14 ,  B23K9/0026 ,  B23K9/02 ,  B23K9/025 ,  B23K9/23 ,  B23K10/02 ,  B23K26/21 ,  B23K26/24 ,  B23K26/26 ,  B23K26/32 ,  B23K26/322 ,  B23K26/36 ,  B23K26/362 ,  B23K26/40 ,  B23K31/02 ,  B23K37/003 ,  B23K2101/18 ,  B23K2101/34 ,  B23K2103/04 ,  B23K2103/08 ,  B23K2103/10 ,  B23K2103/50 ,  B32B15/012 ,  C21D1/00 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D9/50 ,  C21D2211/008 ,  C22C21/02 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/28 ,  C22C38/32 ,  C23C2/04 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40 ,  C23C10/22 ,  C23C28/021 ,  F16B5/08 ,  Y10T428/12229 ,  Y10T428/12271 ,  Y10T428/12389 ,  Y10T428/12396 ,  Y10T428/12486 ,  Y10T428/12493 ,  Y10T428/12757 ,  Y10T428/12764 ,  Y10T428/12972 ,  Y10T428/12979 ,  Y10T428/2495 ,  Y10T428/24967 ,  Y10T428/24975 ,  Y10T428/26 ,  Y10T428/263 ,  Y10T428/264 ,  Y10T428/265

Abstract: A method of butt-welding steel plates is provided. The method includes the steps of coating a first steel plate by dipping the first steel plate in a molten bath to obtain a first precoat upon the first steel plate. The first precoat includes a first intermetallic alloy layer and a first metal alloy layer, the first intermetallic alloy layer is topped by the first metal alloy layer. On a first face of the first steel plate, the first metal alloy layer is removed in a first area at a first periphery of the first steel plate, while at least part of the first intermetallic alloy layer in the first area remains. A second steel plate is coated by dipping the second steel plate in the molten bath or a further molten bath to obtain a second precoat upon the second steel plate. The second precoat includes a second intermetallic alloy layer and a second metal alloy layer, the second intermetallic alloy layer is topped by the second metal alloy layer. On a second face of the second steel plate, the second metal alloy layer is removed in a second area at a second periphery of the second metal plate. While at least part of the second intermetallic alloy layer in the second area remains. After removal of the first and second metal alloy layers, the first periphery of the first steel plate is butt-welded to the second periphery of the second steel plate to form a welded blank.

Abstract translation: 提供了对接钢板的方法。 该方法包括以下步骤：通过将第一钢板浸入熔融浴中来涂覆第一钢板，以在第一钢板上获得第一预涂层。 第一预涂层包括第一金属间合金层和第一金属合金层，第一金属间合金层由第一金属合金层顶起。 在第一钢板的第一面上，在第一钢板的第一周边的第一区域中除去第一金属合金层，而第一区域中的第一金属间合金层的至少一部分残留。 通过将第二钢板浸入熔池或另外的熔池中来涂覆第二钢板，以在第二钢板上获得第二预涂层。 第二预涂层包括第二金属间合金层和第二金属合金层，第二金属间合金层由第二金属合金层顶起。 在第二钢板的第二面上，在第二金属板的第二周边的第二区域中除去第二金属合金层。 而第二区域的第二金属间合金层的至少一部分仍然存在。 在去除第一和第二金属合金层之后，第一钢板的第一周边对接焊到第二钢板的第二周边，以形成焊接坯料。