发明名称 |
Method for manufacturing spark plug |
摘要 |
A method for manufacturing a spark plug is a method for manufacturing the spark plug having an electrode base member and a noble metal tip welded thereto by means of a laser or an electrode base member, a tip base member joined thereto, and a noble metal tip welded to the tip bases material by means of a laser, and the method includes a laser welding process of welding the electrode base member or the tip base member to the noble metal tip by means of a laser and through use of a laser beam whose BBP value assumes 25 mm·mrad (a radius·a half angle) or less at a time point when a laser beam enters a transfer optical system for guiding the laser beam to areas to be welded where laser welding is to be performed. |
申请公布号 |
US8399799(B2) |
申请公布日期 |
2013.03.19 |
申请号 |
US20080594380 |
申请日期 |
2008.03.31 |
申请人 |
TAIDO AKIKAZU;KATO TOMOAKI;NGK SPARK PLUG CO., LTD. |
发明人 |
TAIDO AKIKAZU;KATO TOMOAKI |
分类号 |
B23K26/00 |
主分类号 |
B23K26/00 |
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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