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Title:
ROTARY CUTTING TOOL AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/039001
Kind Code:
A1
Abstract:
The rotary cutting tool comprises a substrate, a first diamond layer, and a second diamond layer. The substrate comprises a head portion, a body portion, and a shoulder portion constituting the boundary between the head portion and body portion. The first diamond layer covers the body portion and shoulder portion and leaves the head portion exposed. The second diamond layer covers the head portion and not the body portion, and is formed atop the first diamond layer in the shoulder portion.

Inventors:
TSUKIHARA, Nozomi (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
KOBAYASHI, Yutaka (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
KAZAHAYA, Katsuo (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
Application Number:
JP2018/017873
Publication Date:
February 28, 2019
Filing Date:
May 09, 2018
Export Citation:
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Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-shi Hyogo, 16, 〒6640016, JP)
International Classes:
B23B51/00; B23C5/16; B23D77/00; B23P15/28; C23C14/06; C23C16/27
Foreign References:
US20130121778A12013-05-16
US5354155A1994-10-11
JP2015136788A2015-07-30
JP2013136144A2013-07-11
JP2012115928A2012-06-21
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (Nakanoshima Festival Tower West, 2-4 Nakanoshima 3-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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