Process for forming a workpiece and rolling machine

US7225656B2 · kind B2 · utility

Assignee

• LANGENSTEIN & SCHEMANN GMBH · DE

Inventors

• Guenter Hofmann · Dresden, DE
• Stelios Katsibardis · Coburg, DE
• Siegfried Hausdoerfer · Mitwitz, DE
• Henry Zwilling · Sonneberg, DE
• Guenther Vogler · Hessisch Oldendorf, DE
• Herbert Rueger · Schneckenlohe, DE

Key dates

• Filing date: Mar 4, 2004
• Grant date: Jun 5, 2007
• Expiry date: Jun 29, 2024

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21B37/46
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

In the transverse wedge rolling machine as claimed in the invention the drive motor is a permanent magnet motor, especially a torque motor. Furthermore the rotational speed of the rollers is controlled depending on their rotary position.