发明名称 |
LASER WELDING METHOD AND ENGINE COOLING STRUCTURE |
摘要 |
A cylinder block (10) includes an inter-bore flow passage (14) between adjacent bores (12). Each inter-bore flow passage (14) is formed by closing an opening-side groove portion (15) continuous from a cylinder block deck face and a bottom-side groove portion (16) with the use of a lid member (20) made of copper, and the lid member (20 is laser-welded to a groove wall face of the opening-side groove portion (15). Before the laser-welding, the lid member (20) has recesses (26) that are interspersed in a direction, in which a laser beam travels, at any one of connected portions at which the lid member (20 is connected to the groove wall face of the opening-side groove portion (15). |
申请公布号 |
EP2822725(B1) |
申请公布日期 |
2016.03.02 |
申请号 |
EP20130714997 |
申请日期 |
2013.03.04 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
KAWASAKI, MINORU;SAKAI, KAZUHITO;UTSUMI, SHINTARO |
分类号 |
B23K26/32;B23K33/00;F02F1/10 |
主分类号 |
B23K26/32 |
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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