This paper examines the factors that effect the efficiency of the CO2-laser powder cladding process. By theoretical calculation and experimental work it has been possible to identify how much of the original laser energy contributes to the cladding process and how much is lost to the surrounding environment by reflection, radiation, convection etc. Every aspect of energy redistribution has been analysed and quantified and this has lead to a deeper understanding of the process. The paper concludes with a number of suggestions for improving the efficiency of blown powder laser cladding.

Topics
Lasers, Materials synthesis and processing
1.
Ollier
,
B.
,
N
,
Kreutz
,
E.W
,
Schluter
,
Gasser
,
H
,.
Wissenbach
,
K.
 (
1992
)
Cladding With Laser Radiation: Properties and Analysis
.
DGM Informationsgesllesheft mbH
(
Germany
), pp.
687
–
692
.
Google Scholar
 
2.
Li
,
W.B.
,
Engström
,
H.
,
A Model Of Laser Cladding By Powder Injection
. (
1996
)
Preheating of the blown powders and powder redistribution of the laser beam
.
Conf. Proc. Of MSMM ’96
. June 11-13,
Beijing, China
.
Google Scholar
 
3.
Sahour
,
M.C
,
Vannes
,
A.B
,
Pelletier
,
J,M.
, (
1991
)
Laser Cladding By Powder Injection: Optimisation Of The Processing Conditions
.
Journal De Physique IV
, Vol
1
. Dec. pp
C7-51
–
C7-54
.
https://doi.org/10.1051/jp4:1991711
Google Scholar
Crossref
Search ADS
 
4.
Powell
,
J.
,
Laser Cladding
. PhD Theses.
Imperial College of Science and Technology, Dept. Of metallurgy
,
London, UK
, (
1983
).
Google Scholar
 
5.
Riabkina-Fishman
,
M.
,
Zahavi
,
J.
Laser alloying and cladding for improving surface properties
,
Applied Surface Science
(Netherlands), Vol.
106
, No.
1-4
, 1 Oct.
1996
Google Scholar
 
6.
Porier
,
D.R.
,
Geiger
,
G.H.
Transport Phenomena in Materials Processing. Heat Transfer and The Energy Equation
.
The Minerals, Metals & Materials Society
(
1994
). ISBN 0-87339-272-8.
Google Scholar
 
7.
Bloes
,
W.
,
Grünenvald
,
B.
,
Dausinger
,
F.
,
Hügel
.
Recent progress in laser surface treatment: I. Implications of laser wavelength
.
Journal of laser applications
8
(
1996
) pp
15
–
23
.
https://doi.org/10.2351/1.4745401
Google Scholar
Crossref
Search ADS
 
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© 2001 Laser Institute of America.
2001
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