B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
73/55, 327/1.3
B23K 26/00 (2006.01) B23K 26/03 (2006.01) G07C 3/14 (2006.01)
Patent
CA 2028844
"Method and Apparatus for Quality Assurance for Laser Welding or Cutting Applications" Method for on-line quality assurance when processing materials with laser energy by means of electro-optical detection of the near-infrared radiation of the material which is thrown out of the "key-hole" during the material processing operation with laser, thus detecting the dimension of hollows (pores, holes) which have arisen in the workpiece. The detection of the thermal radiation of the thrown out material is effected in a wavelength of 800 nm up to approximately 1300 nm, preferably with simultaneous detection of the ultraviolet radiation of the plasma cloud in a preferred wavelength of approximately 200 nm up to 450 nm. Finally there is also a description of the processing procedure for the near-infrared signals.
G. Ronald Bell & Associates
Jurca Marius-Christian
Precitec Gmbh
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