METHOD OF MANUFACTURING FRAME STRUCTURE AND THE FRAME STRUCTURE

Japanese Patent JP2010064094

A

To manufacture a frame structure having a heat exchange function while securing air-tightness and water-tightness.

A method of manufacturing the frame structure includes: a groove forming step of forming a recessed groove 30 for housing a heat transfer medium tube 31 at least in one of the joined surface 18 of a first frame member 10a and the joined surface 18 of a second frame member 10b; a hole forming step of forming a hole 32 for inserting the heat transfer medium tube 31 at least in one of the first frame member 10a and the second frame member 10b; a facing step of facing joined surfaces 18 into flat surfaces; a degreasing step of degreasing and removing grease on the surface of the joined surfaces 18; a heat transfer medium tube-installing step of installing a heat transfer medium tube 31 in the recessed groove 30; a superposing step of superposing the respective frame members 10a, 10b in the thickness direction; and a regular joining step of performing the friction stir welding by moving a rotary tool A for joining along the butted part 12 of the frame members 10a, 10b from outer circumferential surfaces 11 side of the frame members.

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SATO ISATO
HORI HISASHI
SEO NOBUSHIRO
KAWAMOTO TOMOHIRO

JP2008231669A

March 25, 2010

September 10, 2008

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NIPPON LIGHT METAL CO

B23K20/12

Isono Dozo
Etsuo Tada
Nosho Machida

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