END MILL WITH HIGH RAMP ANGLE CAPABILITY
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United States of America Patent
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Issued Date -
Dec 4, 2014
app pub date -
May 30, 2013
filing date -
May 30, 2013
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A rotary cutting tool with a longitudinal axis includes a shank portion, a cutting portion, and a cutting tip. The cutting portion includes a plurality of blades and a plurality of flutes. Each blade includes a leading face, a trailing face, and a land surface extending between the leading face and the trailing face. The cutting tip includes a corner radius, a first portion formed with a first dish angle, and second portion formed with a second dish angle and a third portion formed with a third dish angle. The trailing face contacts the work during a ramp operation in such a way that the first, second and third portions have a double positive geometry to provide the cutting tool with high ramp angle capability.
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