Invention Grant
- Patent Title: Method and device for stretch-flow forming
- Patent Title (中): 拉伸流形成方法和装置
-
Application No.: US13377696Application Date: 2010-06-14
-
Publication No.: US08997541B2Publication Date: 2015-04-07
- Inventor: Benedikt Nillies
- Applicant: Benedikt Nillies
- Applicant Address: DE Ahlen
- Assignee: Leifeld Metal Spinning AG
- Current Assignee: Leifeld Metal Spinning AG
- Current Assignee Address: DE Ahlen
- Agency: Hoffman Warnick LLC
- Priority: EP09008987 20090709
- International Application: PCT/EP2010/003557 WO 20100614
- International Announcement: WO2011/003501 WO 20110113
- Main IPC: B21D22/16
- IPC: B21D22/16 ; B23G9/00 ; B21C37/26

Abstract:
A method for stretch-flow forming, in which a tubular workpiece is arranged around a spinning mandrel, set into rotation and formed by advancing at least one forming roller. A wall thickness of the tubular workpiece is reduced and the tubular workpiece is lengthened, as spinning mandrel use is made of a universal spinning mandrel with different external diameters in the axial direction for producing cylindrical and/or conical and/or cambered hollow parts of different design. during forming the forming roller and the spinning mandrel are moved relatively in the axial direction with respect to the workpiece, and, for the purpose of designing varying diameters and/or wall thicknesses of the workpiece, the forming roller is moved relatively in the axial direction with respect to the spinning mandrel.
Public/Granted literature
- US20120090372A1 METHOD AND DEVICE FOR STRETCH-FLOW FORMING Public/Granted day:2012-04-19
Information query