Friction stir welding method, frame members used t
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专利名称：Friction stir welding method, frame
members used therein, and product thereby 发明人：Aota, Kinya,Ezumi, Masakuni,Ishimaru,
Yasuo,Okamura, Hisanori,Funyuu, Isao,Satou,
Akihiro
申请号：EP04002655.1
申请日：19980218
公开号：EP1442822B1
公开日：
20090902
专利内容由知识产权出版社提供
摘要：PURPOSE: An extruded frame member for friction stir welding is provided to prevent the dent in the joint portion in spite of gap between members in bonding metal members such as aluminum alloy by forming the thick portion protruded for a rotating tool in the joint portion. CONSTITUTION: Hollow frame members(50,60) formed by extruding aluminum alloy are composed of plates(51,52,61,62) and ribs(53,63) connected to the plates. The end of the hollow frame member is inserted to the end of the other hollow frame member, and a vertical plate(54) for bonding the plates is placed near the end of the hollow frame member. Protruded parts(56,66) are formed by thickening the ends of the hollow frame members to be jointed, and extended in parallel to the plates for the end of the frame member. The outside of the protruded part is flattened, and inclined for the outside of the plate. Rotating tools(70) for friction stir welding are arranged in upper and lower parts of the joint portion of the hollow frame members, and small round rods(72) are inserted to the joint portion by turning the rotating tools. The end of the protruded part is extended in parallel to the end of the hollow frame
member, and the protruded part is bonded by inserting the rotating tool in friction stir welding.
申请人：HITACHI LTD
地址：JP
国籍：JP
代理机构：Paget, Hugh Charles Edward
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