Invention Grant
- Patent Title: Method and device for reshaping a workpiece by displacing material in the workpiece
-
Application No.: US14394529Application Date: 2013-03-05
-
Publication No.: US09669445B2Publication Date: 2017-06-06
- Inventor: Benedikt Nillies
- Applicant: Leifeld Metal Spinning AG
- Applicant Address: DE Ahlen
- Assignee: Leifeld Metal Spinning AG
- Current Assignee: Leifeld Metal Spinning AG
- Current Assignee Address: DE Ahlen
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: EP12002781 20120420
- International Application: PCT/EP2013/054388 WO 20130305
- International Announcement: WO2013/156193 WO 20131024
- Main IPC: B21D22/21
- IPC: B21D22/21 ; B21D53/26 ; B21D22/14

Abstract:
The invention relates to a method for reshaping a workpiece comprising a central axis, a radial inner region, and a radial outer region, in which the radial inner region of said workpiece is reshaped by means of a punch and a die by a drawing operation in the axial direction with formation of an axial shaped section. Provision is made for the workpiece, the die, and the punch to be rotated about the central axis during the reshaping process by a drawing operation and for the radial outer region of said workpiece to be subjected, during reshaping by a drawing operation of the rotating workpiece, to the action of at least one shaping roller such that a flow of material in the direction of the radial inner region of said workpiece is caused or aided. The invention further relates to a device for reshaping a workpiece.
Public/Granted literature
- US20150089986A1 METHOD AND DEVICE FOR RESHAPING A WORKPIECE Public/Granted day:2015-04-02
Information query