Method for producing a piston ring
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United States of America Patent
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Jul 21, 2015
Grant Date -
Jul 25, 2013
app pub date -
Sep 2, 2011
filing date -
Oct 8, 2010
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Abstract
A piston ring is produced by providing a metallic main body, at least including a radially outer running surface, a radially inner circumferential surface and upper and lower flank surfaces interposed therebetween, with a defined taper in the region of an approximately cylindrical running surface, providing at least the running surface with at least one wear-resistant layer, and removing the at least one wear layer in the region of the entire circumference of the ring that forms a scraping edge forming a land having a predefinable width.
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