Drill insert geometry having v-notched web

Details Drill insert geometry having v-notched web Drill insert geometry having v-notched web

B - Operations, Transporting

23

B

B23B 27/16 (2006.01) B23B 51/00 (2006.01)

Patent

CA 2647787

The present invention relates to a V-notched web (66) formed on a drill insert (35) of a drill tool assembly (10). The V-notched web (66) allows greater stability and feed rates, while decreasing the heat generated at the insert tip. The present invention is provided by a drill insert comprising a drill insert body having at least two cutting edges, a web between the two cutting edges, and a web thinning notch formed on either side of the web. Each web thinning notch forms a notch edge having a positive rake angle.

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