CUTTING INSERT AND INDEXABLE MILLING TOOL
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United States of America Patent
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app pub date -
Dec 14, 2012
filing date -
Jun 21, 2010
priority date (Note) -
Abandoned
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Abstract
A cutting insert is suitable for pocket machining. The cutting insert (10) includes a rake face (14); a flank (15); and a main cutting edge (11) formed in an intersecting portion between the rake face (14) and the flank (15) and extending in a direction intersecting a cutting direction of a milling tool. The main cutting edge includes at least one separating portion (12) not involved in cutting, in the middle of the main cutting edge (11) in a direction along the main cutting edge (11). The main cutting edge (11) is formed of at least two cutting edges (11a, 11b) separated by the separating portion (12), and when the cutting insert is attached to a tool body (1) of the cutting tool, cutting edge angles κ1 and κ2 of the cutting edges (11a,11b) are set within a range from 5° or more to 20° or less.
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