| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve a method for manufacturing a spark plug, in which a plurality of members including a chip member and an intermediate member are joined to an electrode base-material. Ž<P>SOLUTION: A method for manufacturing a spark plug includes a first step of preparing an electrode base-material, a second step of laminating a chip member on the electrode base-material while sandwiching at least one intermediate member therebetween, and a third step of performing simultaneous resistance-welding between the electrode base-material and the intermediate member and between the intermediate member and the chip member. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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