公开(公告)号：US09937588B2

公开(公告)日：2018-04-10

申请号：US15014338

申请日：2016-02-03

Applicant: UACJ CORPORATION

Inventor： Toshihiko Fukuda ,  Satoshi Miyazaki

IPC: B23K20/12 ,  B23K20/233 ,  B23K101/18 ,  B23K101/28 ,  B23K103/10 ,  B23K103/18

CPC classification number: B23K20/2336 ,  B23K20/122 ,  B23K20/124 ,  B23K20/1245 ,  B23K20/1255 ,  B23K20/129 ,  B23K2101/18 ,  B23K2101/28 ,  B23K2103/10 ,  B23K2103/18

Abstract: A friction stir welding method which permits advantageous production of a product which has a sound welded area without joint defects, by joining together two members formed of the same material or respective different materials selected from a cast aluminum alloy and 2000 series, 4000 series, 5000 series and 7000 series aluminum alloys which are considered difficult to be joined together by the friction stir welding method. An initiation tab member formed of a 1000 series, 3000 series, 6000 series or 8000 series aluminum alloy is disposed in abutting contact with end faces of joining portions of first and second members (in an abutting part), on the side of initiation of the welding operation, and the friction stir welding operation is performed by moving a probe of a rotary tool through the initiation tab member into the joining portions of the two members.

公开(公告)号：US09931711B2

公开(公告)日：2018-04-03

申请号：US15014366

申请日：2016-02-03

Applicant: UACJ CORPORATION

Inventor： Toshihiko Fukuda ,  Satoshi Miyazaki

IPC: B23K20/12 ,  B23K20/233 ,  B23K101/18 ,  B23K101/28 ,  B23K103/10 ,  B23K103/18

CPC classification number: B23K20/2336 ,  B23K20/122 ,  B23K20/124 ,  B23K20/1245 ,  B23K20/1255 ,  B23K20/129 ,  B23K2101/18 ,  B23K2101/28 ,  B23K2103/10 ,  B23K2103/18

Abstract: A friction stir welding method which permits advantageous production of a product which has a sound welded area without joint defects, by joining together two members formed of the same material or respective different materials selected from a cast aluminum alloy and 2000 series, 4000 series, 5000 series and 7000 series aminum alloys which are considered difficult to be joined together by the friction stir welding method. A termination tab member formed of a 1000 series, 3000 series, 6000 series or 8000 series aluminum alloy is disposed in abutting contact with end faces of joining portions of first and second members (in an abutting part), on the side of termination of the welding operation, and the friction stir welding operation is terminated after a probe of a rotary tool is moved from the joining portions of the two members into the termination tab member.

公开(公告)号：US09676055B2

公开(公告)日：2017-06-13

申请号：US14635235

申请日：2015-03-02

Applicant: UACJ Corporation

Inventor： Toshihiko Fukuda

IPC: B23K20/12 ,  B23K20/233 ,  C22C21/06 ,  B23K101/18 ,  B23K103/10

CPC classification number: B23K20/1255 ,  B23K20/1265 ,  B23K20/2336 ,  B23K2101/18 ,  B23K2103/10 ,  C22C21/06

Abstract: Providing a rotary tool for friction stir spot-welding, which makes it possible to join together two aluminum members superposed on each other, with a high degree of joint strength. The rotary tool has a probe which is provided in a central part of a distal end portion of a cylindrical tool body so as to extend coaxially with the tool body and which has a stepped structure consisting of an intermediate probe and a central probe which extend coaxially with each other. Distal end faces of the tool body and the intermediate probe respectively give a first shoulder surface and a second shoulder surface which are gradually recessed in a radially inward direction and connected to proximal portions of the respective intermediate and central probes.

公开(公告)号：US10895277B2

公开(公告)日：2021-01-19

申请号：US15949729

申请日：2018-04-10

Applicant: UACJ Corporation

Inventor： Takashi Murase ,  Shohei Yomogida ,  Toshihiko Fukuda

IPC: B23K26/323 ,  F16B5/08 ,  B23K26/244 ,  B23K26/242 ,  B23K26/211 ,  B23K9/23 ,  B23K9/167 ,  B23K103/18 ,  B23K103/12 ,  B23K103/10

Abstract: A welded joint comprising an aluminum-based base material comprising an aluminum alloy or pure aluminum and a copper-based base material comprising a copper alloy or pure copper joined by a weld metal portion is provided. The weld metal portion contains copper in ranges of less than 75% by mass and silicon in ranges of less than 13% by mass and has a higher content of copper and silicon than the aluminum-based base material.

公开(公告)号：US20180298932A1

公开(公告)日：2018-10-18

申请号：US15949729

申请日：2018-04-10

Applicant: UACJ Corporation

Inventor： Takashi Murase ,  Shohei Yomogida ,  Toshihiko Fukuda

IPC: F16B5/08 ,  B23K26/244 ,  B23K26/323

Abstract: A welded joint comprising an aluminum-based base material comprising an aluminum alloy or pure aluminum and a copper-based base material comprising a copper alloy or pure copper joined by a weld metal portion is provided. The weld metal portion contains copper in ranges of less than 75% by mass and silicon in ranges of less than 13% by mass and has a higher content of copper and silicon than the aluminum-based base material.

公开(公告)号：US09180554B2

公开(公告)日：2015-11-10

申请号：US14359712

申请日：2013-08-06

Applicant: UACJ Corporation

Inventor： Mineo Asano ,  Yusuke Yamamoto ,  Toshihiko Fukuda

IPC: B23K35/28 ,  C22F1/05 ,  C22C21/08 ,  B23K20/12

CPC classification number: B23K35/288 ,  B23K20/122 ,  B23K20/128 ,  B23K2101/006 ,  B23K2101/34 ,  B23K2103/10 ,  C22C21/08 ,  C22F1/05

Abstract: An aluminum alloy member including a sheet-like aluminum alloy member having ends joined by friction stir welding, and forming an anodic oxidation coating on a weld front surface or a weld back surface, the aluminum alloy member including 0.3 to 1.5 mass % of Mg, 0.2 to 1.2 mass % of Si, 0.5 mass % or less of Cu, and 0.2 mass % or less of Fe, with the balance being Al and unavoidable impurities, Fe-containing second phase particles having a particle size (circle equivalent diameter) of more than 1 μm, among second phase particles dispersed in a matrix of the aluminum alloy member, having an average particle size of 5 μm or less.

Abstract translation: 一种铝合金构件，包括具有通过摩擦搅拌焊接连接的端部的片状铝合金构件，并且在焊接前表面或焊接后表面上形成阳极氧化涂层，所述铝合金构件包括0.3至1.5质量％的Mg， Si：0.2〜1.2质量％，Cu：0.5质量％以下，Fe：0.2质量％以下，余量：Al和不可避免的杂质; Fe含量的第二相粒子的粒径（圆当量直径） 在分散在铝合金构件的基体中的第二相粒子中，平均粒径为5μm以下。