Hybrid laser and arc process for welding workpieces

US5821493A · kind A · utility

Assignee

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

• Eckhard Beyer · Alsbach, DE
• Ralf Imhoff · Aachen, DE
• Jan Neuenhahn · Braunschweig, DE
• Christof Maier · Aachen, DE

Key dates

• Filing date: Jun 5, 1997
• Grant date: Oct 13, 1998
• Expiry date: Jun 5, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K2101/185
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A welding process in which laser radiation is trained on the seam area fod between two sheet-metal workpieces, one of which has an edge projecting above the other. In addition, the arc is guided along this edge to melt the edge and contribute molten metal to the pool formed by the laser.