Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
END MILL
Document Type and Number:
WIPO Patent Application WO/2010/061933
Kind Code:
A1
Abstract:
Disclosed is a router end mill which enables prevention of whitening of the cut surface, interlayer separation, and resin fusion during the milling, enables milling of FRP resin by fast rotation for a long time, and has an excellent durability.  An odd number of lands (2) extending while meandering are formed by meandering grooves (1) between neighboring meandering grooves (1).  First and second nicks (31, 32) forming apexes and arranged across the land width along a predetermined first direction (a1) are formed in each land of at least one pair of neighboring lands out of the odd number of lands (2).  Finishing blades are formed on the other land (23) than the pair of lands out of the odd number of lands (2).

Inventors:
NISHIMURA YUSUKE (JP)
NISHIMURA TAKAFUMI (JP)
Application Number:
PCT/JP2009/070064
Publication Date:
June 03, 2010
Filing Date:
November 27, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
GN TOOL CO LTD (JP)
NISHIMURA YUSUKE (JP)
NISHIMURA TAKAFUMI (JP)
International Classes:
B23C5/10; B23D77/00
Foreign References:
JPS5269086A1977-06-08
JPH02198708A1990-08-07
JPS57138522A1982-08-26
JPS642816A1989-01-06
JPH0460609U1992-05-25
JP2005219176A2005-08-18
Attorney, Agent or Firm:
TSUJIMOTO Kazuyoshi et al. (JP)
Kazuyoshi Tsujimoto (JP)
Download PDF: