Title:
METHOD FOR MILLING AN OPENING IN A WORKPIECE AND WORKPIECE COMPRISING AN OPENING
Document Type and Number:
WIPO Patent Application WO/2012/080293
Kind Code:
A3
Abstract:
The invention relates to a method for milling an opening in a material piece, wherein in a corner region the opening has peripheral edge sections that come together at an angle, and the opening is formed using a milling cutter which, during operation, fills in an enveloping surface, for example a cylinder surface, having a lateral face and an end face, wherein the corner region is first formed in a first orientation of the milling cutter, preferably corresponding to a longitudinal axis of the opening, with the aid of the section of the milling cutter which generates the lateral face of, for example, the cylinder surface. In order to provide a method for milling an opening in a workpiece, by means of which method it is also possible to create corners having the sharpest edges possible, and to further provide such a workpiece, according to the invention moreover in a second orientation of the milling cutter, optionally forming a bevel that on a peripheral edge section is oriented transversely to the direction of extension thereof, a corner shape that corresponds to the transition of the end face to the lateral face is created between the peripheral edge sections that come together, with the aid of the section of the milling cutter which generates the end face of the enveloping surface of the, for example, cylinder surface.
Inventors:
FRENKEN EGBERT (DE)
Application Number:
PCT/EP2011/072686
Publication Date:
August 09, 2012
Filing Date:
December 14, 2011
Export Citation:
Assignee:
KLAUKE GMBH GUSTAV (DE)
FRENKEN EGBERT (DE)
FRENKEN EGBERT (DE)
International Classes:
B21D37/20; B23C3/00
Foreign References:
| EP1661651A1 | 2006-05-31 | |||
| JPH09117845A | 1997-05-06 | |||
| US20100095815A1 | 2010-04-22 | |||
| US6311597B1 | 2001-11-06 | |||
| US4648761A | 1987-03-10 | |||
| JP2004202688A | 2004-07-22 | |||
| JP2005305595A | 2005-11-04 |
Attorney, Agent or Firm:
MÜLLER, Enno et al. (Corneliusstraße 45, Wuppertal, DE)
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