Influence of intensity distribution on the meltpool and clad shape for laser cladding

D.F. de Lange, J.T. Hofman, J. Meijer

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Abstract

The influence of the optical system on the laser cladding process is studied, in particular with respect to the burn-in shape: the penetration of the meltpool into the substrate. The beam caustic and intensity profiles for the commonly used out-of-focus laser clad operation are presented and discussed. To avoid the disadvantages of the out-of-focus operation, a novel telezoom optical system is developed, which allows in-focus operation with a sufficiently large focus with a uniform intensity distribution and a spot diameter ranging from 3 up to over 6 mm. Different typical burn-in shapes are indicated, as they can be found in cross sections of experimental clads. The influence of the intensity distribution on the occurring burn-in shapes is discussed, as well as other phenomena that can play a role, such as flow recirculation cells in the meltpool.
Original languageUndefined
Title of host publicationProceedings of the third International WLT-conference on Lasers in Manufacturing, 14-17 June 2005, Munich, Germany
EditorsE. Beyer, F Dausinger, A Ostendorf, A. Otto
Place of PublicationStuttgart, Germany
PublisherAT-Fachverlag GmbH Stuttgart
Pages323-327
Number of pages5
ISBN (Print)3-00-016402-2
Publication statusPublished - 14 Jun 2005
Event3rd International WLT-Conference on Laser in Manufacturing, LIM 2005 - Stuttgart, Germany
Duration: 13 Jun 200516 Jun 2005
Conference number: 3

Publication series

Name
PublisherAT-Fachverlag GmbH Stuttgart

Conference

Conference3rd International WLT-Conference on Laser in Manufacturing, LIM 2005
Abbreviated titleLIM
CountryGermany
CityStuttgart
Period13/06/0516/06/05

Keywords

  • IR-52655
  • METIS-224332

Cite this

de Lange, D. F., Hofman, J. T., & Meijer, J. (2005). Influence of intensity distribution on the meltpool and clad shape for laser cladding. In E. Beyer, F. Dausinger, A. Ostendorf, & A. Otto (Eds.), Proceedings of the third International WLT-conference on Lasers in Manufacturing, 14-17 June 2005, Munich, Germany (pp. 323-327). Stuttgart, Germany: AT-Fachverlag GmbH Stuttgart.