Method for manufacturing a spark plug electrode
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United States of America Patent
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May 2, 1989
Grant Date -
N/A
app pub date -
Aug 19, 1988
filing date -
Aug 19, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved method for manufacturing a spark plug electrode having a substrate formed from a first metal and a spark gap surface area formed from a second metal, such as a precious metal. The spark gap surface area is formed by heating the portion of the first metal at which the spark gap surface is to be formed with a plasma arc and applying the second metal as a consumable welding electrode, cooling the first metal and the applied second metal, and, optionally, shaping the second metal to form a desired surface configuration.
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