Trennen mit Festkoerperlasern Prozesskontrolle beim Trennen mit Laserstrahlung. Abschlussbericht

State of technology: today solid-state lasers are in use for precise cuttings. It is possible to cut a lot of materials: nearly all metals, several ceramics, rubber, and some synthetics. There are available pulse powers up to 25 kW with an average power from 100 W to 500 W. Aims of the project: at the beginning of this project there existed the need to acquire knowledge about longtime-stability with the cutting by solid-state lasers (pulsed Nd:YAG-laser) for series production: possibility of reproduction, quality (control), economy, demands of praxis. Special items: control of cutting-quality, measurings of roughness and their functional relations to the parameters of process, other surveys of process like piercing, influence of undulate sheet metal, sensor control unit for constant distance between nozzle (focus) and working piece and influence of cutting-gas, demands to the laserwork-system (series production), stable parameters of process for longtime-production, life of flashlamps, mechanical and other optical components. Result and conclusion: the surveys gave for the most part satisfactory results. A realistic integration of the pulsed Nd:YAG-laser (fine cutting and welding) into the conventional mechanical engineering (production) is possible. (orig.)SIGLEAvailable from TIB Hannover: F94B0178+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman