Title:
CUTTING INSERT
Document Type and Number:
WIPO Patent Application WO/2011/142297
Kind Code:
A1
Abstract:
Provided is a cutting insert which has improved chip processing performance during cutting work and improved defect resistance performance. A cutting insert having a substantially polygonal plate shape, in which a cutting edge (6) is formed in an intersecting ridgeline section between a cutting surface (2a) and a flank surface (4a), and a chip breaker is formed on the cutting surface (2a), wherein a chip breaker concave section (40) of a nose section has a sloped surface (40b), and the sloped surface (40b) curves in a concave shape from a peripheral section near the nose section (5) to a bottom surface section (40c), gradually inclines toward the bottom surface section (40c), and smoothly connects to the bottom surface section (40c).
Inventors:
MAJIMA Shinya (11-1 Yoshima-Kogyodanchi, Iwaki-sh, Fukushima 44, 〒9701144, JP)
Application Number:
JP2011/060589
Publication Date:
November 17, 2011
Filing Date:
May 06, 2011
Export Citation:
Assignee:
TUNGALOY CORPORATION (11-1, Yoshima-Kogyodanchi Iwaki-sh, Fukushima 44, 〒9701144, JP)
株式会社タンガロイ (〒44 福島県いわき市好間工業団地１１－１ Fukushima, 〒9701144, JP)
株式会社タンガロイ (〒44 福島県いわき市好間工業団地１１－１ Fukushima, 〒9701144, JP)
International Classes:
B23B27/22
Attorney, Agent or Firm:
TANI & ABE, p.c. (6-20, Akasaka 2-chome Minato-k, Tokyo 52, 〒1070052, JP)
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Claims: