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公开(公告)号：US20210046577A1
公开(公告)日：2021-02-18
申请号：US16978898
申请日：2019-03-07
Applicant: ArcelorMittal
Inventor： Wolfram EHLING , Niko VAN DER BORGHT
Abstract: A method for producing a welded metal blank (16) includes cutting a first initial metal sheet (1) and a second initial metal sheet (3) from a first and second metal strip (4); joining the first and second initial metal sheets (1,3) by welding so as to obtain an initial welded metal blank (9), the initial welded metal blank (9) comprising a weld joint (10) joining the first and the second initial metal sheets (1,3); and cutting said initial welded metal blank (9) by a process involving metal melting so as to obtain at least one final welded metal blank (16) comprising a first metal blank portion (17) and a second metal blank portion (18) joined by a weld joint portion (19) consisting of a portion of the weld joint (10) obtained during the joining step.
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2.发明申请公开(公告)号：US20200001402A1
公开(公告)日：2020-01-02
申请号：US16569267
申请日：2019-09-12
Applicant: ArcelorMittal
Inventor： Francis SCHMIT , Rene VIERSTRAETE , Qingdong YIN , Wolfram EHLING
IPC: B23K26/60 , B23K26/26 , B23K26/322 , B23K26/32
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.
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3.发明申请公开(公告)号：US20200001403A1
公开(公告)日：2020-01-02
申请号：US16569989
申请日：2019-09-13
Applicant: ArcelorMittal
Inventor： Francis SCHMIT , Rene VIERSTRAETE , Qingdong YIN , Wolfram EHLING
IPC: B23K26/60 , B23K26/26 , B23K26/322 , B23K26/32
Abstract: A welded blank includes a first pre-coated steel sheet, a second pre-coated steel sheet the first pre-coated steel sheet including a principal first face and an opposite principal first face, the first layer being removed by melting and vaporization in a first peripheral zone of the first pre-coated steel sheet, and the second pre-coated steel sheet including a second principal face and an opposite second principal face, the second layer being removed by melting and vaporization in a second peripheral zone of the second pre-coated steel sheet. At least one welded joint defining a median plane perpendicular to the first and second principal faces. The welded joint area has at least one advantageous characteristic such as a sum of the widths of the first and second peripheral zones of the first and second pre-coated steel sheets varying by less than 10% along the welded joint, the first and second solidification ripples being aligned at the welded joint with respect to the median plane, morphologies of the first and second solidification ripples at the welded joint being identical and symmetrical, and/or an aluminum content in the welded joint being below 0.3%.
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公开(公告)号：US20160008924A1
公开(公告)日：2016-01-14
申请号：US14865721
申请日：2015-09-25
Applicant: ArcelorMittal France
Inventor： Jean-Francois CANOURGUES , Aurelien PIC , Pascal VERRIER , Rene VIERSTRAETE , Wolfram EHLING , Bernd THOMMES
IPC: B23K26/362 , C22C38/28 , C22C38/06 , C23C2/12 , C22C38/02 , C22C38/00 , C22C21/02 , B23K26/40 , C22C38/32 , C22C38/04
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 fabricating a precoated steel plate, the method including coating a steel plate by dipping the steel plate in a molten bath to obtain a precoat upon the steel plate, wherein the precoat includes an intermetallic alloy layer and a metal alloy layer. The intermetallic alloy layer is topped by the metal alloy layer. On at least one face of the plate, the metal alloy layer is removed in an area at a periphery of the plate using a laser beam, while leaving at least part of the intermetallic alloy layer in the area. The at least part of the intermetallic layer in the area has a thickness between 3 and 10 micrometers thick.
Abstract translation: 一种预涂钢板的制造方法，其特征在于，通过将钢板浸渍在熔融浴中来涂覆钢板，得到钢板上的预涂层，其中预涂层包括金属间合金层和金属合金层。 金属间合金层由金属合金层顶上。 在板的至少一个面上，使用激光束在板的周围的区域中去除金属合金层，同时在区域中留下至少一部分金属间合金层。 该区域中的金属间化合物层的至少一部分具有3至10微米厚的厚度。
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公开(公告)号：US20210162550A1
公开(公告)日：2021-06-03
申请号：US17153980
申请日：2021-01-21
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
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.
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Patent Agency Ranking
公开(公告)号：US20190271342A1
公开(公告)日：2019-09-05
申请号：US16414857
申请日：2019-05-17
Applicant: ArcelorMittal France
Inventor： Jean-Francois CANOURGUES , Aurelien PIC , Pascal VERRIER , Rene VIERSTRAETE , Wolfram EHLING , Bernd THOMMES
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.
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公开(公告)号：US20160047026A1
公开(公告)日：2016-02-18
申请号：US14858487
申请日：2015-09-18
Applicant: ArcelorMittal France
Inventor： Jean-Francois CANOURGUES , Aurelien PIC , Pascal VERRIER , Rene VIERSTRAETE , Wolfram EHLING , Bernd THOMMES
IPC: C23C2/26 , B23K26/40 , C22C38/32 , C22C38/28 , C23C2/04 , C22C38/04 , C22C38/02 , C22C38/00 , C22C21/02 , B23K26/362 , C22C38/06
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 fabricating a precoated steel plate is provided. The method includes coating a steel plate by dipping the steel plate in a molten bath to obtain a precoat upon the steel plate. The precoat consists of an intermetallic alloy layer and a metal alloy layer, the intermetallic alloy layer is topped by the metal alloy layer. On at least one face of the plate, the metal alloy layer is removed in an area at a periphery of the plate using a laser beam, while at least part of the intermetallic alloy layer is left in the area. The step of removing includes measuring a characteristic of the laser or an area where the metal alloy area is to be removed to obtain a measured value, comparing the measured value with a reference value and stopping a removal operation to leave the at least part of the intermetallic alloy in place as function of the comparing step. Additional methods are also provided.
Abstract translation: 提供一种制造预涂钢板的方法。 该方法包括通过将钢板浸入熔池中来涂覆钢板，以在钢板上获得预涂层。 预涂层由金属间合金层和金属合金层组成，金属间合金层由金属合金层顶起。 在板的至少一个面上，使用激光束在板的周围的区域中去除金属合金层，而至少部分金属间合金层留在该区域中。 去除步骤包括测量激光器的特性或要除去金属合金区域的区域以获得测量值，将测量值与参考值进行比较，并停止去除操作以使至少部分 金属间合金作为比较步骤的功能就位。 还提供了附加的方法。
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公开(公告)号：US20190285102A1
公开(公告)日：2019-09-19
申请号：US16428317
申请日：2019-05-31
Applicant: ArcelorMittal France
Inventor： Jean-Francois CANOURGUES , Aurelien PIC , Pascal VERRIER , Rene VIERSTRAETE , Wolfram EHLING , Bernd THOMMES
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.
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公开(公告)号：US20190271341A1
公开(公告)日：2019-09-05
申请号：US16413901
申请日：2019-05-16
Applicant: ArcelorMittal France
Inventor： Jean-Francois CANOURGUES , Aurelien PIC , Pascal VERRIER , Rene VIERSTRAETE , Wolfram EHLING , Bernd THOMMES
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.
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公开(公告)号：US20190001438A1
公开(公告)日：2019-01-03
申请号：US16064096
申请日：2016-12-22
Applicant: ARCELORMITTAL
Inventor： Wolfram EHLING
IPC: B23K26/26 , B23K26/042 , B23K26/08 , B23K26/142 , B23K26/362 , B23K26/322 , C22C38/32 , C22C38/28 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C21D1/18 , C21D6/00 , C23C2/12 , C23C2/26 , C23C2/40
Abstract: This method for preparing a pre-coated metal sheet for welding thereof to another pre-coated metal sheet, containing the following successive steps: providing a pre-coated metal sheet containing a metal substrate provided, on at least one of its faces, with a pre-coating layer, then removing, on at least one face of said pre-coated metal sheet, at least part of said pre-coating layer so as to form a removal zone, said removal being done by the impact of a laser beam on said pre-coating layer, the removal step comprising, over the course of the removal, the relative displacement of said laser beam with respect to the metal sheet in a direction of advance (A). During the removal, the laser beam is inclined relative to the face of the metal sheet such that the orthogonal projection of the laser beam on said face of the metal sheet is located in the zone of the metal sheet in which the removal has already been done, and it forms an angle of inclination (a) of between 12° and 50° with the direction normal (N) to the face of the metal sheet.
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