Indexable threading insert with pressed-in chip breaker
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United States of America Patent
Stats
-
Aug 27, 1996
Grant Date -
N/A
app pub date -
Jun 29, 1994
filing date -
Jun 29, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A two cutting edge, indexable insert with integral pressed-in chip breaker wherein the cutting edges are symmetrically inverted relative to each other to thereby provide indexing therebetween. Each cutting edge is provided with a plurality of noses and gullets. The shape of the noses and gullets is predetermined to provide a predetermined thread contour, such as a buttress thread form. Each pressed in chip breaker is spaced from the adjacent cutting edge by a land and is in the form of a raised island having an incident face contour corresponding to the nose-and-gullet shape of the adjacent cutting edge. Each land is angled such that when the insert is mounted for use with an intended inclination, portions of the land are at neutral rake when engaging a workpiece.
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Cited Art Landscape
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