发明名称 |
FRICTION STIRRING-WELDING METHOD |
摘要 |
<p>A friction stirring-welding method capable of increasing the welding strength of a lap joint. A welding tool (1) comprises a small diameter projected part (2) at the tip of a shoulder (3). The welding tool is press-fitted to the upper plate (4) of the lap joint while being rotated. By a friction stirring action, an upper plate side welding boundary surface (6) plastically flows, a surface oxidation film on a lapped surface is peeled off, and the boundary surface is activated to provide an excellent welding part. Also, since the welding tool is formed in a shape having the small diameter semispherical projected part (2) at the tip thereof, the thickness (12) of an upper plate welding part is increased, and a lap joint part with high welding strength can be provided.</p> |
申请公布号 |
WO2004110692(A1) |
申请公布日期 |
2004.12.23 |
申请号 |
WO2004JP08580 |
申请日期 |
2004.06.11 |
申请人 |
HITACHI, LTD.;AOTA, KINYA;INAGAKI, MASAHISA;HIRANO, SATOSHI;OKAMOTO, KAZUTAKA |
发明人 |
AOTA, KINYA;INAGAKI, MASAHISA;HIRANO, SATOSHI;OKAMOTO, KAZUTAKA |
分类号 |
B23K20/12;(IPC1-7):B23K20/12 |
主分类号 |
B23K20/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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