Title:
CUTTING HEAD, HOLDER AND ROTATING TOOL INCLUDING THE SAME
Document Type and Number:
WIPO Patent Application WO/2016/024819
Kind Code:
A1
Abstract:
A rotating tool capable of absorbing a stress caused by a cutting force during a cutting operation. The rotating tool has a holder having a plurality of groove portions in a front end surface, a cutting head having a plurality of protrusion portions in a rear end surface, and a screw clamping the cutting head to the holder. The groove portion has a pair of groove side surfaces and tapers in a radially outward direction. The protrusion portion has a pair of protrusion side surfaces and tapers in the radially outward direction. A bent portion is formed in one of the groove side surface and the protrusion side surface. When the cutting head is clamped to the holder, a relief angle is formed between the groove side surface and the protrusion side surface from the bent portion in the radially outward direction.
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Inventors:
CHOI CHANG HEE (KR)
PARK CHANG GYU (KR)
PARK CHANG GYU (KR)
Application Number:
PCT/KR2015/008459
Publication Date:
February 18, 2016
Filing Date:
August 12, 2015
Export Citation:
Assignee:
TAEGU TEC LTD (KR)
International Classes:
B23C5/20; B23C5/22
Domestic Patent References:
| WO2012090057A1 | 2012-07-05 | |||
| WO1999000208A1 | 1999-01-07 |
Foreign References:
| US20050169723A1 | 2005-08-04 | |||
| US5607263A | 1997-03-04 | |||
| US20110123282A1 | 2011-05-26 |
Attorney, Agent or Firm:
CHANG, Soo Kil et al. (Seyang B/D 39 Sajikno-8-gil,Jongno-gu, Seoul 110-720, KR)
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