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Process and device for laser working with remote control

  • US 5,256,852 A
  • Filed: 10/10/1991
  • Issued: 10/26/1993
  • Est. Priority Date: 10/10/1990
  • Status: Expired due to Fees
First Claim
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1. Process for laser welding in which a laser beam (2) is carried to the vicinity of a working point (10) on which it is focused, said process comprising the steps of(a) drawing light emitted by said working point during the welding separately from the laser beam reflected by said working point;

  • and(b) analyzing during welding a spectrum of drawn light by comparing said spectrum with a standard spectrum corresponding to a satisfactory weld.

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