Inverse calculation of power density for laser surface treatment

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Abstract

Laser beam surface treatment requires a well-defined temperature profile. In this paper an analytic method is presented to solve the inverse problem of heat conduction in solids, based on the 2-dimensional Fourier transform. As a result, the required power density profile of the laser beam can be calculated for any desired temperature field. Methods to reduce the effects of errors introduced by calculations on a finite grid and physically impossible temperature gradients are addressed. A program, which interactively calculates the power density distribution for a user defined temperature field, will be presented. Results are given for the laser beam hardening process.
Original languageUndefined
Title of host publication50th CIRP general assembly
Place of PublicationSydney, Australia
PublisherElsevier
Pages135-138
DOIs
Publication statusPublished - 26 Aug 2000

Publication series

Name
PublisherElsevier
Number1
Volume49
ISSN (Print)0007-8506

Keywords

  • IR-74247
  • Heat transfer
  • METIS-145114
  • Laser
  • Surface treatment

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