Title:
【発明の名称】管状加工物を連続的にかつ切削屑無しに個々のリングに分離する方法及び装置
Document Type and Number:
Japanese Patent JP2821553
Kind Code:
B2
Abstract:
PCT No. PCT/DE95/00578 Sec. 371 Date Dec. 17, 1996 Sec. 102(e) Date Dec. 17, 1996 PCT Filed Apr. 27, 1995 PCT Pub. No. WO95/29777 PCT Pub. Date Nov. 9, 1995A process for the continuous chipless separation of identical individual rings from tubular workpieces by using cutting rollers. In order to produce highly-accurate rings, preferably from antifriction bearing steel, the section of the tubular workpiece to be separated is completely encompassed by the longitudinal contour of the cutting rollers and the faces of the rings are produced plane-parallel and vertical relative to the workpiece axis. What is essential is that prior to the cutting process the tubular workpiece is heated to a temperature that substantially lowers the deformation resistances of the material used.
Inventors:
Fritzmeyer, Fritz
Application Number:
JP52793895A
Publication Date:
November 05, 1998
Filing Date:
April 27, 1995
Export Citation:
Assignee:
Mannesmann Actien Gezelshaft
International Classes:
B21H1/06; B21K1/04; B21K1/76; B23D21/00; B21H1/12; (IPC1-7): B21K1/76
Attorney, Agent or Firm:
Nao Okuyama (3 others)