发明名称 |
SPARK PLUG AND METHOD OF MANUFACTURING THE SAME |
摘要 |
A method of manufacturing a spark plug that includes a metallic shell, an insulator, a center electrode, a ground electrode, and a firing pad. The method may include the steps of: applying a first laser beam to attach the firing pad to the ground electrode, and then using a second laser beam from the same laser beam welder to attach the ground electrode to the metallic shell. The laser beam welder may include a high energy density fiber laser for forming key-hole laser welds, as well as a programmable focusing optic (PFO) assembly for redirecting laser beams from one welding site to the other. |
申请公布号 |
US2014265815(A1) |
申请公布日期 |
2014.09.18 |
申请号 |
US201414206121 |
申请日期 |
2014.03.12 |
申请人 |
FEDERAL-MOGUL IGNITION COMPANY |
发明人 |
Quitmeyer Frederick J. |
分类号 |
H01T13/32;H01T21/02 |
主分类号 |
H01T13/32 |
代理机构 |
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代理人 |
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主权项 |
1. A method of manufacturing a spark plug, the method comprising the steps of:
providing a firing pad, a ground electrode, and a metallic shell; directing a first laser beam from a laser beam welder to a first welding site that is at or near an interface between the firing pad and the ground electrode and attaching the firing pad to the ground electrode with a first laser weld; and directing a second beam from the laser beam welder to a second welding site that is at or near an interface between the ground electrode and the metallic shell and attaching the ground electrode to the metallic shell with a second laser weld, wherein the first laser beam and the second laser beam are both emitted using the same laser beam welder. |
地址 |
Southfield MI US |