Cutting insert and crank shaft milling tool
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United States of America Patent
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-
Jan 3, 2023
Grant Date -
Aug 13, 2020
app pub date -
May 24, 2018
filing date -
Sep 13, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A cutting insert includes a top face and a bottom face parallel to the top face. Four side faces and four corner faces extend between the top and bottom faces. At least one cutting edge is formed at an intersection of the top face and at least one of the corner faces and two of the side faces connected to the corner face. The top face forms a rake surface, while an upper part of the corner face and the two side faces form a relief surface connected to the cutting edge. In order to reduce the cycle time for crank shaft milling, the cutting insert has two diagonally opposed corners including an acute angle between 70° and 85°. At least one of the acute angled corners including the corner face providing a corner cutting edge. A disc milling tool including such cutting inserts is also provided.
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