Honda Motor Co., Ltd.

Toshihiro Murakawa

Naoki Takahashi

Hiroki Fujiuchi

Yota Eguchi

Taisei Wakisaka

Yosuke Ikadai

Yuuki Kami

Satoshi Ohkubo

Tomohiko Shigihara

Hiroki Fujuchi

Takayuki Hoshino

There is provided a manufacturing method for a composite structure that makes it possible to join a thermoplastic resin molding, which serves as a second member for reinforcement, while at the same time preventing the deformation of a first member to be reinforced. The second member contains magnetic substances in a portion thereof that is to be abutted on the first member. The second member is introduced into an induction heating unit and subjected to induction heating, thereby heating the abutting portion of the second member to join the second member to the first member.

Manufacturing method for composite structure

There is provided a nut having a thread portion having a female thread, a metallic plate portion having a base segment, and a hardness gradient portion provided between the thread portion and the metallic plate portion. The thread portion, metallic plate portion and the hardness gradient portion are monolithic each other, a metallographic structure of the metallic plate portion differs from a metallographic structure of the thread portion and a hardness of the hardness gradient portion is lower than a hardness of the thread portion and lowers from the thread portion toward the metallic plate portion.

Nut, female thread machining device and female thread machining method

A thread forming deviceis provided with a thread forming toolfor forming a thread portionat a frame, a first motorfor controlling to rotate the thread forming tool, and a second motorfor controlling to extract and retract the thread forming tool. Further, the thread forming toolis provided with a pilot hole forming portionprovided with a spiral grooveat a front end portionin a taper shape, and a thread forming portionconstituted continuously to the pilot hole forming portionand provided with a spiral groove

Thread forming method, thread forming device, and thread forming tool

A recess portion with a substantially circular cross-section is provided in the upper end surface of a supporting jig. When a probe of a device for friction stir welding is buried in the upper end surface of a layered portion, material in the vicinity of the buried portion flows plastically. This causes the plastically flowed material to flow into the recess portion, and as a result, the material is stirred in a relatively large region. When the material that flowed into the recess portion is cooled and solidified, a friction stir-welded portion-possessing member having a projection portion is obtained.

Method for friction stir welding, jig therefor, member with friction stir-welded portion, and tool for friction stir welding

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Tochigi, Japan

Toshihiro Murakawa