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Feedback controlled laser machining system

United States Patent Application

20060102601
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A system for machining a workpiece to desired finished workpiece specifications. The system comprises a system for producing a laser beam; a system for positioning the workpiece relative to the laser beam; a system for measuring the topography of the work piece and producing workpiece topography data; and a computer and control system operatively connected to the system for producing a laser beam, to the system for positioning the workpiece relative to the laser beam, and to the system for measuring the topography of the work piece and producing workpiece topography data. The computer and control system compares the workpiece topography data with the desired finished workpiece specifications and controls the system for positioning the workpiece relative to the laser beam so that the workpiece is moved with respect to the laser beam in a desirable fashion, within certain velocity, acceleration, and distance constraints. The computer and control system controls the system for producing a laser beam so that the laser beam machines the workpiece to the desired finished workpiece specifications.
Shirk, Michael (Brentwood, CA), Furmanski, Jevan (Albany, CA)
The Regents of the University of California
11/ 271,454
November 10, 2005
[0002] The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the United States Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.