Process for engraving a structure into the surface of a work piece with a laser

US5886317A · kind A · utility

Assignee

• Benecke-Kaliko AG · DE

Inventors

• Hans-Helmut Hinrichs · Winsen (Aller), DE
• Jurgen Minke · Winsen (Aller), DE
• Gunter Lange · Villingen, DE
• Jens Mommsen · Celle, DE
• Ludger Overmeyer · Bordenau, DE
• Markus Obert · Hannover, DE

Key dates

• Filing date: Apr 25, 1996
• Grant date: Mar 23, 1999
• Expiry date: Apr 25, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K26/082
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

For the engraving of a pattern into the surface of a work piece by a laser beam which is directed onto the surface and controlled in its intensity in a location-dependent manner in dependence on the pattern, one surface area of a design pattern is, first of all, scanned optically or mechanically, and the surface information which is thus obtained is converted into electrical control signals. The laser beam is, by these control signals, controlled in a surface area which corresponds to the surface area of the design pattern. Different patterns can be engraved rapidly and easily by changing the design pattern. The scanning of the design pattern can be carried out finely and with high resolution, so that the engraving also has a correspondingly high resolution. The pattern of the design patterns can be as irregular as desired, so that complicated and irregular patterns can be engraved.