An in-process method for the inverse estimation of the powder catchment efficiency during laser cladding

An estimation of the heat loss by conduction can be obtained from measurements of the surface temperature and an overall heat balance at the clad laser interaction zone. Through an inverse calculation of the boundary temperature from observed surface temperatures the powder catchment efficiency can...

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Bibliographic Details
Published in:Optics and laser technology 1998, Vol.30 (2), p.77-84
Main Authors: Lin, J., Steen, W.M.
Format: Article
Language:English
Subjects:
Biological and medical applications
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Industrial applications
Inverse heat conduction problem
Laser cladding
Optics
Physics
Powder catchment efficiency
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Summary:An estimation of the heat loss by conduction can be obtained from measurements of the surface temperature and an overall heat balance at the clad laser interaction zone. Through an inverse calculation of the boundary temperature from observed surface temperatures the powder catchment efficiency can be estimated along with the variation in the clad height expected during laser cladding. This method shows a possible way to monitor and control the clad height and profile as required by near net shape manufacturing methods based on laser cladding.
ISSN:0030-3992
1879-2545
DOI:10.1016/S0030-3992(98)00007-3