The monotectic alloy of Pb and Cu poses particular problems in laser cladding due to the separation of the alloy constituents with widely different melting points. This system was clad by laser and the results for a variety of operating conditions are illustrated.

The effects of process parameters on Pb segregation, Fe inclusions from the substrate and porosity are examined and described with reference to the solidification mechanism.

By varying the composition of the powder feed into the laser generated melt pool patterned claddings were produced. The metallurgy of such clads is discussed.

1.
A.V. La.
Rocca
et al. (June
1977
),
Development Activities for the Industrial Applications of High Power Laser to Metal Working
,
International Seminar on Laser Processing of Engineering materials.
2.
J.
Clark
,
L.T.
Villanueva
and
W.M.
Steen
(
1979
),
Report to B.S.C. Scottish Laboratories
, Imperial College.
3.
V.M.
Weerasinghe
,
W.M.
Steen
and
D.R.F.
West
(
1987
),
Laser Deposited Austenitic Stainlee Steel Clad Layers
,
Surface Engineering
, Vol
3
, No
2
.
4.
PJ.
Oakley
and
N.
Bailey
(
1985
),
Laser Surfacing of Nickel Aluminium Bronze
,
Proc. ICALEO ‘85
.
5.
J.
Shen
etc (June
1992
),
Laser Surface Treatment of a Low Carbon Steel by Cladding with Tungsten Carbide Composite Powders
,
Proc. LAMP ‘92, Japan
.
6.
Takeda
T.
et al.(May
1987
),
Laser Cladding of Copper Alloy
,
Proc. of LAMP ‘87
, pp
383
388
,
Osaka, Japan
.
7.
W.M.
Steen
(
1991
),
Laser Material Processing
,
Spinger-Verlag
.
8.
W.M.
Steen
,
V.M.
Weerashinghe
and
P.
Monson
(
1986
),
Some Aspects of the Formation of Laser Clad Tracks
,
Proc. SPIE ‘86
9.
F.
Grobuschek
(September
1986
),
‘ Rillenlager ‘type shell bearings for heavy fuel burninf diesel engines
, Marine Propulsion.
This content is only available via PDF.
You do not currently have access to this content.