Kawasaki Jukogyo Kabushiki Kaisha

Kabushiki Kaisha Kawasaki Zosen

Hidehito Nishida

Hideki Okada

Mitsuo Fujimoto

Shinji Koga

Masayuki Inuzuka

Toshiyuki Hirashima

Shirou Honma

Katsumi Nakashima

Kenichi Kamimuki

Yukichi Takaoka

Syuhei Yoshikawa

Kenji Waki

Yuzo Kano

Mitsuhiro Kamioka

Goro Nishiyama

Noriko Omichi

Kouichi Ohta

Kentaro Yamazaki

Yasuo Otsuki

A friction stir welding apparatus includes: a rotating shaft, on which a thread for friction stirring is formed; and a drive unit rotatably supporting the rotating shaft. A rotating shoulder configured to rotate together with the rotating shaft to generate frictional heat between the rotating shoulder and back surfaces of workpieces is fixed to a distal end of the rotating shaft. The rotating shoulder is pushed against the back surfaces of the workpieces by a pushing mechanism. A stationary shoulder penetrated by the rotating shaft and configured to hold the workpieces in a sandwiching manner together with the rotating shoulder is non-rotatably mounted to the drive unit or a member connected to the drive unit.

Friction stir welding apparatus with an L-shaped support

A dissimilar joint structure according to the present invention is provided at a first metal member and a second metal member which are made of dissimilar metals to each other. The dissimilar joint structure couples the first metal member and the second metal member. An inserting grooveis formed at the first metal member. The second metal member includes an inserting portion which is able to be inserted into the inserting groove. The first metal member is joined to the inserting portionwith the inserting portioninserted into the inserting groove

Dissimilar joint structure, tank skirt including dissimilar joint structure, transport ship including tank skirt, and method for joining dissimilar metal members

A lightweight, mobile friction stir welding machine, a sticking pad for the friction stir welding machine, and a friction stir welding system are provided. The sticking pad has a flat base member facing an object, an annular sealing member protruding from one of major surfaces of the base member so as to surround a central area of the surface of the base member, a slippery member attached to the end surface of the annular sealing member facing the object, and one or some deformation-suppressing protrusions protruding from the surface facing the object of the base member. The slippery member is made of a material that can make the slippery member contact the object with a friction coefficient lower than that with which the sealing member can be in contact with the same object.

Sticking pad, friction stir welding machine and friction stir welding system

A friction stir welding device for welding an article by means of a welding tool, includes: a tool holding section configured to hold the welding tool and rotate round a predetermined reference axial line; rotation driving unit configured to drive the tool holding section to rotate round the reference axial line; movement driving unit configured to drive the tool holding section to move along the reference axial line; and a car body loaded with the tool holding section, the rotation driving unit and the movement driving unit, the car body being configured to travel above or below the article.

Friction stir welding device

The apparatus includes a basefixed at a predetermine position, a tool holding jig, to which a welding toolis mounted, installed on the baserotatably about a preset reference axis Land movably along the reference axis L, a tool rotation driving means for rotating the tool holding jig about the reference axis L, and a tool movement driving means for moving the tool holding jig along the reference axis L. The apparatus realizes miniaturization of the apparatus, simplification of the structure, and improvement of the operability.

Friction stir welding apparatus

Growing community of inventors

Kobe, Japan

Hidehito Nishida