Producing Three-Dimensional Shapes by Laser Milling

[+] Author and Article Information
R. K. C. Hsu

Manufacturing Technology Center, National Research Council of Canada, Ottawa, Ontario, Canada, K1A OR6

S. M. Copley

Materials Science and Mechanical Engineering Departments, University of Southern California, Los Angeles, CA 90089-0241

J. Eng. Ind 112(4), 375-379 (Nov 01, 1990) (5 pages) doi:10.1115/1.2899602 History: Received July 29, 1988; Revised July 05, 1989; Online April 08, 2008


A laser milling process employing a pulsed, carbon dioxide laser has been investigated using graphite as a model material. Material is removed by scanning the focused beam across the surface of the workpiece leaving behind a series of narrow, parallel, overlapping grooves. These grooves, together, constitute the removal of a thin layer of uniform thickness lying parallel to a layer plane. In order to remove layers bounded at the edge by upright walls perpendicular to the layer plane, the laser beam must be tilted with respect to the layer plane. Using this approach, it is possible to produce perpendicular steps and cylindrical surfaces.

Copyright © 1990 by The American Society of Mechanical Engineers
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