Kawasaki Jukogyo Kabushiki Kaisha

Other

Kabushiki Kaisha Kawasaki Zosen

Shinji Koga

Mitsuo Fujimoto

Atsushi Kato

Shigetomo Matsui

Ryoji Ohashi

Takeshi Yamada

Hiroyuki Matsumura

Masayuki Inuzuka

Hidehito Nishida

Hiroshi Iwahashi

Kazuhiro Ogawa

Hiroyuki Hirata

Toshio Atsuta

Katsumi Nakashima

Makoto Ryoji

Yasuhiro Kumon

Shuji Yamamoto

Hiroatsu Asari

Shigeki Koe

Yuzo Kano

Shigemi Murakami

Toshihiko Ishizuka

Masaki Uekado

Kouji Michiba

Shozo Okazaki

Goro Nishiyama

Akitoshi Yamamoto

Hidefumi Yamanaka

Kazutoshi Nishimoto

Toshinobu Nishibata

Taketo Yamakawa

Yutaka Chida

Naoshige Kubo

Kouichi Ohta

Kentaro Yamazaki

Yasuo Otsuki

A friction stir welding machine is provided that is adapted to perform solid phase welding on a welding portion of materials to be welded, by pressing a welding tool against the welding portion of the materials to be welded while rotating the welding tool, and forcing the welding tool to be advanced into a softened portion which is softened by a frictional heat while stirring the softened portion, wherein a coating made of aluminum nitride is formed on at least a region of the welding tool to be in contact with the materials to be welded.

Friction stir welding machine and friction stir welding tool

The present invention is a friction stir welding machine adapted to perform solid phase welding on a welding portion of materials to be welded, by pressing a welding tool against the welding portion of the materials to be welded while rotating the welding tool, and forcing the welding tool to be advanced into a softened portion which is softened by a frictional heat while stirring the softened portion, wherein a coating made of aluminum nitride is formed on at least a region of the welding tool to be in contact with the materials to be welded.

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

Welded structure made of low thermal expansion coefficient alloy and welding material therefore

A composite structure is manufactured by joining a first material, preferably made of a magnetically permeable material and having a first joining surface in which a recess having an overhang surface is formed, to a second material, preferably made of an electrically conductive material and having a second joining surface to be joined to the first joining surface of the first material. On the second joining surface is integrally formed a protrusion having an outer configuration substantially corresponding to the inner shape of the recess. The first and second materials are firmly mechanically joined to each other by, for example, a casting method, a rolling method, a pressing method, or a method utilizing plastic flow of the second material.

Composite structures

A composite structure is manufactured by joining a first material, preferably made of a magnetically permeable material and having a first joining surface in which a recess having an overhang surface is formed, to a second material preferably made of an electrically conductive material and having a second joining surface to be joined to the first joining surface of the first material. On the second joining surface is integrally formed a protrusion having an outer configuration substantially corresponding to the inner shape of the recess. The first and second materials are firmly mechanically joined to each other by, for example, a casting method, a rolling method, a pressing method, or a method utilizing plastic flow of the second material.

Method of manufacturing composite structures

Growing community of inventors

Kobe, Japan

Shinji Koga