Method for joining an electrode to a precious-metal section
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United States of America Patent
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Issued Date -
Sep 9, 2004
app pub date -
Nov 25, 2003
filing date -
Nov 27, 2002
priority date (Note) -
Abandoned
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Abstract
A method for joining a precious-metal section to an electrode of a spark plug is provide, the precious-metal section being joined to the electrode by means of heat input generated by a laser beam. The laser beam is applied to the precious-metal section and optionally also to the electrode. During the heat introduction, the laser beam covers substantially the entire surface of the precious-metal section. No relative movement occurs between the laser beam and the precious-metal section during the heat introduction.
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