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1. 发明申请

US20220297221A1 JOINING METHOD AND JOINED BODY 有权
公开(公告)号：US20220297221A1
公开(公告)日：2022-09-22
申请号：US17639083
申请日：2020-08-20
申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
发明人： Toru HASHIMURA , Ryohei IHARA , Taiki YAMAKAWA
IPC分类号： B23K9/23 , B23K9/007 , B23K33/00
摘要： A joining method for overlapping and joining a plate-shaped portion of a first metal member and a plate-shaped portion of a second metal member, where the first metal member and the second metal member are made of dissimilar materials, includes a first step of forming an insertion hole in each of the plate-shaped portion of the first metal member and the plate-shaped portion of the second metal member, where the insertion holes communicate with each other when the plate-shaped portions of the first metal member and the second metal member are overlapped with each other, a second step of disposing a first joining member made of a metal material on a side of the plate-shaped portion of the first metal member opposite to the second metal member, a third step of inserting a second joining member made of the same metal material as that of the first joining member into the first metal member from a side of the second metal member through the insertion holes while the plate-shaped portions of the first metal member and the second metal member are overlapped with each other, and a fourth step of welding the first joining member and the second joining member and joining the first metal member and the second metal member through the first joining member and the second joining member.

2. 发明公开

US20230191526A1 METHOD FOR PRODUCING RESISTANCE-WELDED MEMBER 审中-公开
公开(公告)号：US20230191526A1
公开(公告)日：2023-06-22
申请号：US17996312
申请日：2021-04-12
申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
发明人： Kyohei MAEDA , Reiichi SUZUKI , Ryohei IHARA
IPC分类号： B23K11/31
CPC分类号： B23K11/31 , B23K2101/18
摘要： A method for producing a resistance-welded member made of three or more sheets including a plated steel sheet that includes: a first energizing with a first current value while compressing the steel sheets with a first compressive force to form a nugget; a subsequent energizing of, after the first energizing, energizing with a second current value smaller than the first current value while compressing the steel sheets with a second compressive force greater than the first compressive force; and holding an electrode by maintaining the second compressive force after the subsequent energization. The second compressive force and a total sheet thickness, the first current value and the second current value, and a subsequent energization time and an electrode holding time satisfy predetermined conditions respectively.

3. 发明申请

US20230111000A1 APPARATUS, MOLD SET, AND METHOD FOR PRODUCING METAL-RESIN COMPOSITE 有权
公开(公告)号：US20230111000A1
公开(公告)日：2023-04-13
申请号：US17934384
申请日：2022-09-22
申请人： KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) , RAPIIT CO., LTD.
发明人： Kenichi WATANABE , Ryohei IHARA , Zenzo YAMAGUCHI , Takuro SHIGETOMO
IPC分类号： B29C43/18 , B29C43/36 , B29C43/52
摘要： Molding accuracy of a metal member is improved in an apparatus, a mold set, and a method for producing a metal-resin composite with a set of molds. An apparatus for manufacturing a metal-resin composite by press molding a metal member and a resin material, the apparatus including a mold including an upper mold and a lower mold sandwiching the metal member and the resin material, a molding auxiliary component detachably fixed to the upper mold so as to fill at least a part of a cavity C for arranging the resin material formed by the upper mold and the lower mold, and a drive unit that moves at least one of the upper mold and the lower mold in a vertical direction. The molding auxiliary component has a first press surface for molding the metal member. The upper mold has a second press surface for integrally molding the metal member and the resin material. A distance between the first press surface and the lower mold in a state where the molding auxiliary component is attached is shorter than a distance between the second press surface and the lower mold in a state where the molding auxiliary component is removed.

4. 发明申请

US20220395883A1 APPARATUS AND METHOD FOR PRODUCING METAL-RESIN COMPOSITE 有权
公开(公告)号：US20220395883A1
公开(公告)日：2022-12-15
申请号：US17731557
申请日：2022-04-28
申请人： KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
发明人： Ryohei IHARA , Kenichi WATANABE , Zenzo YAMAGUCHI
IPC分类号： B21D22/02 , B29C43/18 , B29C43/36
摘要： The apparatus includes an upper mold and a lower mold that sandwich the metal member and the resin material, and a drive unit that vertically moves an elastic member attached to a molding surface of the upper mold and at least one of the upper mold and the lower mold. A cavity for arranging the resin material is provided by the upper mold 110 and the lower mold. The elastic member is arranged so as to seal the resin material in the cavity.

5. 发明公开

US20230201949A1 METHOD FOR PRODUCING RESISTANCE-WELDED MEMBER 审中-公开
公开(公告)号：US20230201949A1
公开(公告)日：2023-06-29
申请号：US17996257
申请日：2021-03-10
申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
发明人： Kyohei MAEDA , Reiichi SUZUKI , Ryohei IHARA
IPC分类号： B23K11/11 , B23K11/16 , B23K11/25
CPC分类号： B23K11/11 , B23K11/163 , B23K11/255 , B23K11/257 , B23K2101/18
摘要： A method for producing a resistance-welded member made of three or more sheets including a plated steel sheet includes: a main energizing by performing energization with a first current value while compressing the steel sheet with a first compressive force to form a nugget; a subsequent energizing by performing, after the main energizing, energization such that the current value gradually decreases from the first current value while compressing with a second compressive force greater than the first compressive force; and holding an electrode while maintaining the second compressive force after the subsequent energizing. The second compressive force and a total sheet thickness, compression rise delay time, and a downslope time and an electrode holding time satisfy respective predetermined conditions.

6. 发明申请

US20220395885A1 MOLD, APPARATUS, AND METHOD FOR PRODUCING METAL-RESIN COMPOSITE 有权
公开(公告)号：US20220395885A1
公开(公告)日：2022-12-15
申请号：US17742967
申请日：2022-05-12
申请人： KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
发明人： Kenichi WATANABE , Ryohei IHARA , Zenzo YAMAGUCHI
IPC分类号： B21D37/10 , B29C43/20 , B29C43/36 , B21D22/20
摘要： A mold is for press molding a metal plate and a resin material to produce a metal-resin composite. The mold includes an upper mold and a lower mold that sandwich the metal plate and the resin material. A cavity for arranging the resin material is provided by the upper mold and the lower mold. The upper mold has a recess into which the resin material leaking from the cavity is caused to flow.

7. 发明申请

US20220281528A1 STRUCTURAL MEMBER 有权
公开(公告)号：US20220281528A1
公开(公告)日：2022-09-08
申请号：US17632780
申请日：2020-07-30
申请人： KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
发明人： Ryohei IHARA
IPC分类号： B62D21/15 , B62D29/00 , B21D39/02
摘要： A structural member is elongated in a longitudinal direction, and includes a first member made of a steel plate and a second member made of a steel plate, the first member and the second member being joined. In the structural member, a closed cross-sectional shape is formed by the first member and the second member in a cross section perpendicular to the longitudinal direction. The first member has a tensile strength of equal to or greater than 980 MPa, and includes a first hemming process part subjected to hemming bending at both end parts in a width direction orthogonal to the longitudinal direction. The second member has a tensile strength of equal to or greater than 980 MPa, and includes a second bonded part held in the first hemming process part at both end parts in the width direction and bonded to the first hemming process part by an adhesive.

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