Title:
細長い中空体の軸方向成形装置及び方法
Document Type and Number:
Japanese Patent JP5192038
Kind Code:
B2
Abstract:
A device and a method for axially forming an elongated hollow body is disclosed. The device has at least one receptacle, a reducing die, a punch for pressing the elongated hollow body through the reducing die in the direction of an axis, an expanding mandrel and means for limiting the axial displacement of the punch. The punch and the expanding mandrel are movable on the same axis and the expanding mandrel is arranged inside the punch. The hollow body is reduced to a first diameter in a first portion and expanded to a second diameter in a second portion as a result of a movement of the punch and the expanding mandrel in the same direction.
Inventors:
Blochhaus, Ulrich
Gärke, Andreas
Gärke, Andreas
Application Number:
JP2010513662A
Publication Date:
May 08, 2013
Filing Date:
June 29, 2007
Export Citation:
Assignee:
GKN DRIVELINE INTERNATIONAL GMBH
International Classes:
B21D41/04; B21C37/16; B21D41/02
Domestic Patent References:
| JP7136710A | ||||
| JP5086468A | ||||
| JP5997713A | ||||
| JP61245914A |
Foreign References:
| DE19523280A1 |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation