| 2006 №06 (09) | 2006 №06 (11) |
The Paton Welding Journal, 2006, #6, 40-42 pages
Improvement of quality of deposited metal in plasma-MIG cladding of aluminium alloys
V.V. Chigarev, K.A. Kondrashov, N.A. Granovsky
Priazovsky State Technical University, Mariupol, UkraineAbstract
Peculiarities of plasma-MIG cladding of aluminium alloys are considered. The cause of formation of oxide-type non-metallic inclusions in the deposited metal was found to be an oxide film on the surface of metal electrode. Suggested is the diagram of the plasma-MIG cladding machine operating in the pulsed mode, allowing removal of oxide film from the metal electrode surface. The results obtained show that it is possible to dramatically decrease the quantity of non-metallic inclusions in the deposited metal.
Keywords: plasma-MIG cladding, aluminium alloys, nonmetallic inclusions
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