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公开(公告)号：US20250018454A1
公开(公告)日：2025-01-16
申请号：US18748585
申请日：2024-06-20
Applicant: IMPRESSION TECHNOLOGIES LIMITED
Inventor： George J.S. Adam , Mark W. Brazier , Alistair D. Foster
Abstract: The invention is a process for forming a metal alloy component comprising: heating a metal alloy sheet blank to at least its Solution Heat Treatment temperature at a heating station; transferring the heated sheet blank to a press; initiating formation of a component by closing the press dies at a first speed then completing the formation by closing the press dies at a second speed, said second speed being slower than the first; and holding the formed component in the dies during cooling of the formed component.
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公开(公告)号：US12194523B2
公开(公告)日：2025-01-14
申请号：US17909883
申请日：2021-02-09
Applicant: JFE STEEL CORPORATION
Inventor： Hiroyuki Tanaka
Abstract: A method for manufacturing a pressed component including forming a metal sheet into a pressed component shape having: a cross section having a top sheet portion and a side wall portion continuous to at least one side in the width direction of the top sheet portion via a first bent portion; and having one or two or more curved portions in which the top sheet portion is curved to project or to be recessed in a side view along the longitudinal direction in the direction intersecting the cross section, the method which includes: a first preliminary forming step having a step of forming, to the metal sheet, first beads extending along the longitudinal direction at a position where the first bent portion is formed; and a first component forming step of forming the metal sheet after the first preliminary forming step into the pressed component shape.
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公开(公告)号：US20240417821A1
公开(公告)日：2024-12-19
申请号：US18816132
申请日：2024-08-27
Applicant: LG Energy Solution, Ltd.
Inventor： Kwang Su Hwang Bo , Ju Jun Lee , Sang Sok Jung , Jun Tak Kim , Gil Young Lee , Seong Mo Koo
IPC: C21D9/48 , B21D22/20 , B21D35/00 , C23C30/00 , H01M50/119 , H01M50/124 , H01M50/131 , H01M50/133
Abstract: A cylindrical battery case for a secondary battery includes a body having a steel sheet including a nickel coating layer formed thereon, a step portion on the body, and a taper and a flange extending from the body. A surface roughness (Ra) of the battery case ranges from 0.022 μm to 0.040 μm. Also provided is a device including such a secondary battery. The device is selected from a group consisting of an electronic device, an electric vehicle, a hybrid electric vehicle, and a power storage system.
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4.发明授权
公开(公告)号：US12136736B2
公开(公告)日：2024-11-05
申请号：US17778641
申请日：2020-11-19
Applicant: LG Energy Solution, Ltd.
Inventor： Tae Yoon Kong , Shin Hwa Lee
IPC: H01M50/105 , B21D22/20 , B21D22/21 , B21D22/26 , B21D51/16 , B29C33/42 , B29C43/36 , B29L31/00 , H01M10/052
Abstract: A pouch-shaped case forming apparatus for forming a pouch-shaped case has a terrace step, wherein there are no dents or wrinkles at a pouch folding portion of the pouch-shaped case.
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5.发明公开
公开(公告)号：US20240351087A1
公开(公告)日：2024-10-24
申请号：US18639411
申请日：2024-04-18
Inventor： Yong XU , Shihong Zhang , Liangliang Xia , Wenlong Xie , Hao Li , Hongliang Zhu , Xingyu Duan
CPC classification number: B21D22/205 , B21D24/08
Abstract: The present disclosure provides an impact hydroforming mold and an impact hydroforming method with integration of blank holder and feeding, belonging to the technical field of metal forming. The hydroforming mold includes: a lower concave mold, a blank holder ring, and a working sleeve assembly. A working sleeve has a liquid chamber for containing liquid medium and a stamping acceleration channel; a throttling flow channel is formed between working sleeve and blank holder ring; the liquid medium can be throttled and depressurized through the throttling flow channel and then contacted with side face of the sheet. Under the action of intensity of pressure, the edge of the sheet pressed by the blank holder ring can be allowed in a mutually adaptive way to realize feeding in a downward forming process when the middle area of the sheet suffers impact, so forming quality of a target component can be effectively improved.
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公开(公告)号：US20240226984A1
公开(公告)日：2024-07-11
申请号：US18613212
申请日：2024-03-22
Applicant: Kabushiki Kaisha F.C.C.
Inventor： Michiharu YONEZAWA , Susumu ITO , Riaki IIDA
IPC: B21D22/20
CPC classification number: B21D22/20
Abstract: A progressive press metal mold has a lower mold 1, with a die having a plurality of die holes Da, and an upper mold 2, with punches P corresponding to the respective die holes Da, where the punches P and the corresponding die holes Da form a plurality of processing stages S. A belt-shaped metal material W is transported sequentially to perform predetermined pressing on the belt-shaped metal material W with the punches P and the die holes Da in the respective processing stages S. Electromagnets 7 are configured to attract, by magnetic force, the belt-shaped metal material W to be transported to the specific processing stage Sc.
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公开(公告)号：US11931788B2
公开(公告)日：2024-03-19
申请号：US17426260
申请日：2020-01-20
Applicant: JFE Steel Corporation
Inventor： Takeshi Ogawa , Eiji Iizuka
Abstract: Provided is a technology capable of suppressing an edge crack occurring due to stretch flange deformation without being constrained by a target pressed component shape. The technology includes two-stage cutting processing of, when it is estimated that there is concern about risk of occurrence of an edge crack due to stretch flange deformation on an edge of a material (1) to be pressed in press forming, performing twice cutting processing on an edge including at least a site where there is concern about risk of occurrence of the edge crack as pre-processing for press forming in which there is concern about risk of occurrence of the edge crack. In the two-stage cutting processing, cutting to form a partial, beam-shaped overhang portion at a position including a site where there is concern about risk of occurrence of the edge crack is performed in the first cutting and the overhang portion is cut in the second cutting.
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公开(公告)号：US11911816B2
公开(公告)日：2024-02-27
申请号：US17422276
申请日：2019-10-17
Applicant: JFE STEEL CORPORATION
Inventor： Masaki Urabe
Abstract: A method for identifying a variation factor portion of a springback amount, including: performing press forming analysis under first press forming conditions, and calculating a residual stress distribution in a press formed part; performing springback analysis on the press formed part, and calculating a first springback amount; performing press forming analysis under second press forming conditions, and calculating a residual stress distribution in the press formed part; replacing a value of residual stress in a partial area of the residual stress distribution; performing springback analysis on the press formed part for which the value of the residual stress has been replaced, and calculating a second springback amount; obtaining a difference between the second springback amount and the first springback amount; and identifying a portion in the press formed part that is a factor for variation in springback amount of the press formed part based on the obtained difference.
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公开(公告)号：US11878488B2
公开(公告)日：2024-01-23
申请号：US17791696
申请日：2020-03-23
Applicant: NIPPON STEEL CORPORATION
Inventor： Akihiro Sengoku , Kojiro Akiba , Satoshi Kato
IPC: B32B15/01 , C22C18/00 , C23C28/00 , B21D22/20 , C25D5/36 , C23C2/06 , C23C30/00 , B21D22/02 , B32B15/18 , B32B15/04 , C23C28/02 , C23C2/30 , C23C2/28 , C23C2/04 , C23C2/26
CPC classification number: B32B15/013 , B21D22/022 , B21D22/20 , B32B15/011 , B32B15/04 , B32B15/043 , B32B15/18 , C22C18/00 , C23C2/04 , C23C2/06 , C23C2/26 , C23C2/285 , C23C2/30 , C23C28/023 , C23C28/025 , C23C28/321 , C23C28/3225 , C23C30/00 , C23C30/005 , C25D5/36 , Y10T428/12799 , Y10T428/12958 , Y10T428/12972
Abstract: A hot stamped component, includes: a base material; and a Zn-based plating layer provided in contact with the base material as an upper layer of the base material and containing Zn and Ni. A region of the Zn-based plating layer on a base material side is a Fe—Zn solid solution containing Ni, and two or more twins exist in 10 crystal grains of the Fe—Zn solid solution containing Ni adjacent to an interface between the base material and the Zn-based plating layer.
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公开(公告)号：US20230408140A1
公开(公告)日：2023-12-21
申请号：US18332951
申请日：2023-06-12
Applicant: Carrier Corporation
Inventor： Mark Rau
Abstract: A blower includes a fan wheel and a blower housing. The blower housing includes a first housing portion and a second housing portion. The second housing portion is removably connectable to the first housing portion to define a hollow interior therebetween configured to receive a fan wheel, wherein an interface between the first housing portion and the second housing portion is arranged at a central plane of the blower housing.
