Reaming element, reaming tool and method for the production thereof
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United States of America Patent
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Nov 20, 2018
Grant Date -
Sep 15, 2016
app pub date -
Mar 17, 2014
filing date -
Mar 18, 2013
priority date (Note) -
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Abstract
A reaming element for a reaming tool capable of being driven to rotate about an axis of rotation for fine machining of a prefabricated bore, the reaming element having a front main cutting edge and a secondary cutting edge adjoining the radially outward end of the main cutting edge, wherein the main cutting edge and the secondary cutting edge delimit a chip-removing surface, and a polished chamfer, which forms a support zone for guidance on the wall of the bore, is formed between the secondary cutting edge and the rear flank face thereof. The support zone is smaller than the polished chamfer and is kept a lateral distance away from the secondary cutting edge by an intermediate part, more particularly, a recessed intermediate part of the polished chamfer.
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