公开(公告)号：US20240293889A1

公开(公告)日：2024-09-05

申请号：US18275763

申请日：2022-02-07

申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA

发明人： Masahiro MIYAKE ,  Takuya FUKUDA ,  Tadahiro EDAGAWA ,  Yoshitaka MURAMATSU ,  Norichika KITA ,  Makoto TSUJINAKA

IPC分类号： B23K20/12

CPC分类号： B23K20/123 ,  B23K20/125

摘要： A friction stir tool control method is a control method for controlling an operation of a friction stir tool by supplying a necessary drive electric current to a drive source of the tool. The control method includes obtaining a pressurizing force change ratio by comparing a set pressurizing force predefined as a pressurizing force at plunging of the tool into a workpiece with an actual pressurizing force occurring at actual plunging of the tool into the workpiece by supplying a drive electric current for generating the set pressurizing force to the drive source. The drive electric current is regulated in accordance with the pressurizing force change ratio so that the actual pressurizing force comes to the set pressurizing force, and the drive source is driven with the regulated drive electric current.

公开(公告)号：US20240116129A1

公开(公告)日：2024-04-11

申请号：US18275700

申请日：2022-02-07

申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA

发明人： Masahiro MIYAKE ,  Takuya FUKUDA ,  Tadahiro EDAGAWA ,  Norichika KITA ,  Makoto TSUJINAKA

IPC分类号： B23K20/12

CPC分类号： B23K20/123 ,  B23K20/1245

摘要： In a state where a shoulder member is in contact with a contact surface, a pin member is brought into contact with the contact surface to specify a pin movement amount, which is a distance from an initial position of the pin member to the contact surface, and specify a shoulder displacement amount, which is a displacement amount when the shoulder member is retreated as a result of the contact of the pin member. When both a first condition that the pin movement amount is included in a first range and a second condition that the shoulder displacement amount is included in a second range are satisfied, the pin member is retreated from the contact surface by a predetermined return amount, and furthermore, origin point alignment of the pin member and the shoulder member is performed on the basis of positions of the pin member and the shoulder member.