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Proceedings Paper

High-Power Lasers In Materials Processing
Author(s): Richard A. Hella; Daniel S. Gnanamuthu
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Paper Abstract

Carbon dioxide laser systems with continuous beam powers in excess of 15 kW offer the material processing industries a new method of directing and controlling energy to do work. This paper summarizes some of the important characteristics of such a lasers ystem and describes laser material processing. Laser weld penetration obtained at speeds over 100 in. /min (42 mm/s) are similar to those of vacuum electron beam under identical conditions. The laser achieves kerf widths of less than 0.10 in. (2.5mm) in cutting titanium and Rene 95 alloys with thicknesses up to 2.2 in. (55 mm), using an inert gas assist to reduce surface oxidation. Transformation hardening is achieved in depths up to 0.060 in. (1. 5 mm) at hardness values of Rockwell C 60 with distortion of less than 0.002 in. (0. 05 mm) TIR. Laser surface alloying techniques can modify the surface chemistry to resist wear or corrosion.

Paper Details

Date Published: 24 November 1975
PDF: 10 pages
Proc. SPIE 0069, Optical Design Problems in Laser Systems, (24 November 1975); doi: 10.1117/12.954544
Show Author Affiliations
Richard A. Hella, Avco Everett Research Laboratory, Inc. (United States)
Daniel S. Gnanamuthu, Avco Everett Research Laboratory, Inc. (United States)

Published in SPIE Proceedings Vol. 0069:
Optical Design Problems in Laser Systems
Walter R. Sooy, Editor(s)

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