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公开(公告)号：US20240344159A1
公开(公告)日：2024-10-17
申请号：US18681602
申请日：2022-08-17
CPC分类号： C21D1/673 , C21D1/18 , C21D1/42 , C21D7/10 , C21D8/005 , C21D2211/008 , C21D2261/00
摘要： A process for manufacturing a vehicle part from steel material, such as Mn22B5 steel material, using a single transfer press is provided. The process includes stamping, trimming, and piercing the steel material in the transfer press at room temperature, before the steel material is heated. The process then includes induction heating of the stamped steel material in the same press to form austenite in the steel material. After the induction heating, the process includes rapid quenching of the steel material in the same press to form martensite in the steel material. The process does not require an oven to heat the steel material prior to stamping and does not require laser machines for the trimming and piercing. The steel material does not need to be transferred to multiple different locations, which contributes to the improved productivity of the process compared to conventional hot stamping processes.
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2.发明授权公开(公告)号：US12104255B2
公开(公告)日：2024-10-01
申请号：US17866628
申请日：2022-07-18
申请人： ArcelorMittal
IPC分类号： C23C2/12 , C21D1/673 , C21D8/00 , C21D8/02 , C23C2/06 , C23C2/26 , C23C2/28 , C22C21/10 , C22F1/053 , C23C22/07
CPC分类号： C23C2/12 , C21D1/673 , C21D8/0257 , C23C2/06 , C23C2/26 , C23C2/261 , C23C2/28 , C23C2/29 , C21D2211/002 , C21D2211/005 , C21D2211/008
摘要： A hardened part coated with a phosphatable coating is provided. The part is made by a method that includes providing a steel sheet pre-coated with a metallic coating including from 4.0 to 20.0% by weight of zinc, from 1.0 to 3.5% by weight of silicon, optionally from 1.0 to 4.0% by weight of magnesium, and optionally additional elements chosen from Pb, Ni, Zr, or Hf, the content by weight of each additional element being less than 0.3% by weight, the balance being aluminum and unavoidable impurities and residuals elements. The steel sheet is cut to obtain a blank, the blank is thermally treated at a temperature between 840 and 950° C. to obtain a fully austenitic microstructure in the steel, the blank is transferred into a press tool and hot-formed to obtain a part. The part is cooled to obtain a martensitic or martensitic-bainitic microstructure or made of at least 75% of equiaxed ferrite, from 5 to 20% of martensite and bainite in amount less than or equal to 10%.
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公开(公告)号：US11913117B2
公开(公告)日：2024-02-27
申请号：US18173392
申请日：2023-02-23
发明人： Hye Jin Kim , Kyu Yeon Hwang , Hyun Yeong Jung , Jin Ho Lee , Seung Pill Jung
IPC分类号： B32B15/01 , C23C2/02 , B21D22/02 , B21D37/16 , C21D1/673 , C22C38/00 , C23C2/12 , C23C2/26 , C23C2/28 , C23C2/40 , F27B9/02
CPC分类号： C23C2/02 , B21D22/022 , B21D37/16 , B32B15/012 , C21D1/673 , C22C38/00 , C23C2/12 , C23C2/26 , C23C2/28 , C23C2/40 , F27B9/028
摘要： Disclosed is a hot-stamping component, which includes a base steel plate; and a plated layer on the base steel plate and including a first layer, a second layer, and an intermetallic compound portion having an island shape in the second layer, wherein the first layer and the second layer are sequentially stacked, and an area fraction of the intermetallic compound portion with respect to the second layer is an amount of 20% to 60%.
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公开(公告)号：US11873537B2
公开(公告)日：2024-01-16
申请号：US16905323
申请日：2020-06-18
CPC分类号： C21D9/08 , B32B1/08 , B32B15/013 , C21D1/613 , C21D1/673 , C21D8/10 , B32B2597/00 , C21D2221/00
摘要： A method for producing a component may include one or more of the following: providing and/or producing a profiled structural part, the structural part including a predetermined profile along its length; heat treating the profiled structural part; and press hardening the profiled structural part in a press-hardening tool. The profiled structural part in the press-hardening tool may be cooled in an interior thereof by circulating air, where during cooling of the profiled structural part in the press-hardening tool, different material properties are specifically set in at least two regions of the profiled structural part.
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公开(公告)号：US11753085B2
公开(公告)日：2023-09-12
申请号：US17602230
申请日：2020-04-03
申请人： ArcelorMittal
IPC分类号： B32B15/01 , B62D29/00 , B21D35/00 , B21D39/00 , B21D53/88 , B60R19/03 , B62D25/04 , B62D25/06 , B62D25/14 , B62D25/20 , C21D1/673 , C21D9/00 , C21D9/50 , C22C21/00 , C23C2/12 , C23C2/26
CPC分类号： B62D29/007 , B21D35/005 , B21D39/00 , B21D53/88 , B32B15/012 , B60R19/03 , B62D25/04 , B62D25/06 , B62D25/145 , B62D25/20 , C21D1/673 , C21D9/0068 , C21D9/50 , C22C21/00 , C23C2/12 , C23C2/26 , C21D2261/00
摘要： An assembly of an aluminum-based part and a press hardened steel part provided with an alloyed coating including in weight percent, 0.1 to 15.0% silicon, 15.0 to 70% of iron, 0.1 to 20.0% of zinc, 0.1 to 4.0% of magnesium, the balance being aluminum, on at least one of the surfaces thereof placed so as to be in contact with the aluminum-based part.
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公开(公告)号：US20230226585A1
公开(公告)日：2023-07-20
申请号：US18123592
申请日：2023-03-20
发明人： Jiachen PANG , Qi LU , Jianfeng WANG
IPC分类号： B21D22/02 , C21D1/19 , C21D1/673 , C21D1/76 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C21D6/00
CPC分类号： B21D22/022 , C21D1/19 , C21D1/673 , C21D1/76 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C21D6/005 , C21D2211/001 , C21D2211/008
摘要： A method of forming a shaped steel object is provided. The method includes cutting a blank from an alloy composition including 0.05-0.5 wt. % carbon, 4-12 wt. % manganese, 1-8 wt. % aluminum, 0-0.4 wt. % vanadium, and a remainder balance of iron. The method also includes heating the blank until the blank is austenitized to form a heated blank, transferring the heated blank to a press, forming the heating blank into a predetermined shape to form a stamped object, and decreasing the temperature of the stamped object to a temperature between a martensite start (Ms) temperature of the alloy composition and a martensite final (Mf) temperature of the alloy composition to form a shaped steel object comprising martensite and retained austenite.
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公开(公告)号：US20230203634A1
公开(公告)日：2023-06-29
申请号：US18173392
申请日：2023-02-23
发明人： Hye Jin Kim , Kyu Yeon Hwang , Hyun Yeong Jung , Jin Ho Lee , Seung Pill Jung
IPC分类号： C23C2/02 , B21D22/02 , B21D37/16 , B32B15/01 , C21D1/673 , C22C38/00 , C23C2/26 , C23C2/12 , C23C2/40 , C23C2/28
CPC分类号： C23C2/02 , B21D22/022 , B21D37/16 , B32B15/012 , C21D1/673 , C22C38/00 , C23C2/26 , C23C2/12 , C23C2/40 , C23C2/28 , F27B9/028
摘要： Disclosed is a hot-stamping component, which includes a base steel plate; and a plated layer on the base steel plate and including a first layer, a second layer, and an intermetallic compound portion having an island shape in the second layer, wherein the first layer and the second layer are sequentially stacked, and an area fraction of the intermetallic compound portion with respect to the second layer is an amount of 20% to 60%.
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公开(公告)号：US20230193417A1
公开(公告)日：2023-06-22
申请号：US18169277
申请日：2023-02-15
发明人： Yeon Jung Hwang , Jae Ik Yoon , Chang Wook Lee
IPC分类号： C21D9/48 , B32B15/01 , C21D6/00 , C21D1/673 , C22C38/38 , C22C38/32 , C22C38/02 , C22C38/00 , B21D22/02
CPC分类号： C21D9/48 , B32B15/013 , C21D6/005 , C21D6/008 , C21D6/002 , C21D1/673 , C22C38/38 , C22C38/32 , C22C38/02 , C22C38/002 , B21D22/022 , B32B15/012 , C21D2211/005 , C21D2211/008 , C21D2211/002
摘要： Disclosed is a hot stamped part, which has improved toughness while maintaining high strength and high hardness, and a method for manufacturing the same. The hot stamped part is formed by performing hot stamping using an iron-based alloy, and includes a reinforced portion formed to have a martensite structure, a softened portion formed to have ferrite and bainite structures, and a transition portion formed between the reinforced portion and the softened portion. The reinforced portion, the transition portion and the softened portion are formed in the thickness direction of the hot stamped part.
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9.发明申请公开(公告)号：US20190241988A1
公开(公告)日：2019-08-08
申请号：US16386504
申请日：2019-04-17
发明人： Toshio MURAKAMI , Junya NAITOU , Keisuke OKITA , Shushi IKEDA
IPC分类号： C21D9/00 , C22C38/12 , C21D8/00 , C21D6/00 , C22C38/00 , C22C38/18 , B32B15/01 , C22C38/38 , B21D22/02 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/34 , C22C38/54 , C22C38/50 , C21D1/673 , C21D1/20 , C21D7/13 , B21D22/20
CPC分类号： C21D9/0068 , B21D22/022 , B21D22/208 , B32B15/013 , C21D1/18 , C21D1/20 , C21D1/673 , C21D6/004 , C21D6/005 , C21D6/008 , C21D7/13 , C21D8/005 , C21D9/46 , C21D2211/001 , C21D2211/004 , C21D2211/005 , C21D2211/008 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/18 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/50 , C22C38/54
摘要： A steel sheet for hot-pressing includes a specific chemical component composition. In the steel sheet, an average equivalent-circle diameter of a Ti-containing precipitate having an equivalent-circle diameter of 30 nm or less among Ti-containing precipitates contained in the steel sheet is 3 nm or more. A precipitated Ti amount and a total Ti amount in the steel satisfy the relationship of: Precipitated Ti amount (mass %)−3.4[N]≥0.5×[(total Ti amount (mass %))−3.4[N]], in which [N] indicates the content (mass %) of N in the steel. A ferrite fraction in the metal microstructure of the steel sheet is 30 area % or more.
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公开(公告)号：US20190100820A1
公开(公告)日：2019-04-04
申请号：US15723350
申请日：2017-10-03
申请人： FORD MOTOR COMPANY
CPC分类号： C21D9/0062 , C21D1/673 , C21D8/005 , C21D9/085 , C21D2221/00
摘要： A hot stamping die includes a body having a stamping surface, and cooling channels within the body. The cooling channels are positioned to transfer heat from region(s) of the surface to the channels. The hot stamping die also includes a heating element within the body, separate and apart from the channels. The heating element is positioned to heat region(s) of the body different from the region(s) of the surface at a rate greater than heat transfer from the channels to the region(s) of the surface.
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