Process and device for metal spinning

US5218849A · kind A · utility

Assignee

• Zeppelin-Metallwerke GmbH · DE

Inventors

• Erich Sieger · Friedrichshafen, DE
• Detlef Muller-Wiesner · Harpstedt, DE
• Michael Schnellbugel · Meckenbeuren, DE

Key dates

• Filing date: Oct 24, 1991
• Grant date: Jun 15, 1993
• Expiry date: Oct 24, 2011

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21B45/004
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A process and a device for metal spinning a blank into a formed part, especially into a vessel bottom, are described, which can be used for forming materials including materials which are difficult to deform, with high dimensional accuracy and/or high degrees of deformation. For attaining this object, the blank is clamped on its circumference and forced freely, i.e. without using a spinning chuck, into a clearance by means of a motion-controlled spinning tool until its finished dimension is reached.