公开(公告)号：US11813692B2

公开(公告)日：2023-11-14

申请号：US17432570

申请日：2020-02-21

申请人： Kawasaki Jukogyo Kabushiki Kaisha

发明人： Hideki Okada ,  Yusuke Yoshida ,  Kenichi Kamimuki

IPC分类号： B23K20/00 ,  B23K20/12

CPC分类号： B23K20/1245

摘要： A friction stir welding apparatus is used at a butted portion where a second workpiece is butted against a first workpiece such that the second workpiece is upright on the first workpiece. The friction stir welding apparatus includes: a rotary tool that is plunged into one inner corner of a pair of inner corners that are positioned, at the butted portion, on both sides of the second workpiece, respectively; an inner corner presser that presses the other inner corner of the pair of inner corners; and a mover that moves the rotary tool and the inner corner presser along a direction in which the butted portion extends. The inner corner presser includes a pressing roller that presses the other inner corner while rolling in a state where the inner corner presser is being moved by the mover.

公开(公告)号：US10293431B2

公开(公告)日：2019-05-21

申请号：US15533252

申请日：2015-12-14

申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA

发明人： Hideki Okada ,  Junichi Tamura ,  Kenichi Kamimuki

IPC分类号： B23K20/00 ,  B23K20/12 ,  B23K20/24

摘要： A friction stir spot welding apparatus includes a pin member, a shoulder member, a rotation driver, a forward/backward movement driver, and a controller. The controller controls the forward/backward movement driver, such that the pin member and/or the shoulder member press workpieces before a clamp member presses the workpieces, and then controls the rotation driver and the forward/backward movement driver, such that the pin member and the shoulder member stir the workpieces.

公开(公告)号：US10919108B2

公开(公告)日：2021-02-16

申请号：US15759969

申请日：2016-09-13

申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA

发明人： Hideki Okada ,  Shuhei Yoshikawa ,  Kenichi Kamimuki

IPC分类号： B23K20/12 ,  B23K101/18 ,  B23K103/10

摘要： A friction stir spot welding device which welds an object to be welded, by softening the object by friction heat and by stirring the object, has a tool with a cylindrical shape, the tool being rotatable around an axis thereof, advanceable along a direction of the axis, and retractable along the direction of the axis, a temperature detector which detects a temperature of the tool when a welding step for the object starts, and a controller configured to compare the temperature of the tool which is detected by the temperature detector to a predetermined reference temperature to set a plunging force applied by the tool to press the object.