Lash adjuster with ball plunger retaining feature and method of making same
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United States of America Patent
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Dec 7, 2021
Grant Date -
Mar 18, 2021
app pub date -
Dec 1, 2020
filing date -
Jun 1, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A method of manufacturing a lash adjuster body for use in a lash adjuster assembly can include forming a lash adjuster body to an as-formed condition including an outer cylindrical surface, an inner cylindrical surface leading to a blind bore, an end surface and a leak down portion. The method can also include imparting a wear resistant surface layer to at least the leak down portion of the inner cylindrical surface using ferritic nitrocarburizing (FNC). The lash adjuster body is upset at the end surface thereby forming at least one overlap portion that overlaps an opening to the blind bore.
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