Title:
BEVELING METHOD
Document Type and Number:
WIPO Patent Application WO/2014/178355
Kind Code:
A1
Abstract:
A beveling method for beveling the edge of the opening of a cross hole (2-1) formed in a workpiece (W) while rotating a conical tool (1), which has conical cutting blade sections (11-1, 11-2), wherein beveling is performed so that a surface of the same width is formed on the edge of the opening of the cross hole (2-1) by controlling the height of the conical tool (1) and/or the position of the rotation shaft on the basis of a conic section, which is generated when a cutting blade section (11-1, 11-2) is cut with an imaginary plane (V) that contacts the processing point (P) of the conical tool (1) on the cross hole (2-1), and the shape of the edge of the cross hole (2-1) opening.
Inventors:
TAKAHASHI HIKARU (JP)
Application Number:
PCT/JP2014/061777
Publication Date:
November 06, 2014
Filing Date:
April 25, 2014
Export Citation:
Assignee:
CITIZEN HOLDINGS CO LTD (JP)
CITIZEN MACHINERY MIYANO CO (JP)
CITIZEN MACHINERY MIYANO CO (JP)
International Classes:
B23C3/12; B24B9/00; B23D79/00
Foreign References:
| JP2004223638A | 2004-08-12 | |||
| JP2007265237A | 2007-10-11 | |||
| US20070122245A1 | 2007-05-31 | |||
| JPH03256659A | 1991-11-15 | |||
| JP2004223638A | 2004-08-12 | |||
| JP5150194B2 | 2013-02-20 | |||
| JP2010149271A | 2010-07-08 |
Other References:
See also references of EP 2992997A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)
Aoki 篤 (JP)
Download PDF: