Mechanical and Laser Cladding of High-Speed Steel on a Steel Support
Keywords:
laser, cladding, high-speed steel, tool, powder, injection
Abstract
Multilayer cladding by injection of high-speed steel powder with 0.82%C, 4.7%Mo, 6.4%W, 4.1%Cr, 2.02%V, 0.3%Mn, as chemical composition, in melted bath by CO2 continuous wave laser connected to x-y-z coordinate table was tested in order to increase the wear resistance and heat proving of tool active surfaces made of 0.45%C steel. Layers made by different laser running were characterized by macro and microstructure analysis, as well as phase quality analysis by X ray diffractometry, microhardening analysis and hardness finding on coated layer surface in order to establish the optimal cladding run. Lathe tools made by this procedure showed a good behavior when steel shaping.
References
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[2]. Grünenwald, B., et al., “Laser Cladding with a Hetero-geneous Powder Mixture of WC/Co and NiCrBSi”, Proc. ECLAT '92, (1992), p. 411-416.
[3]. Lensch, G., Kröhnert, G., Bady, T., “Hochleistungsoptiken für die Laserbearbeitung von Innenräumen”, Proc. ECLAT ‘96, (1996), p. 823-828.
[4]. Levcovici, S.M., Levcovici, D.T., “Surface Hardening of Rp5 Steel by Continuous Wave CO2 Laser”. The Annals of University of Galati, fascicle IX, Metallurgy and Materials Science, Year XIV (XIX), (1996), p. 95-100.
[5]. Levcovici, D.T., Munteanu, V., Levcovici, S.M., Benea, L., Mitoşeriu, O., Paraschiv, M.M., “Laser Processing of MMC Layers on a Metal Base”, Materials and Manufacturing Processes (USA), July 1999, vol. 14, no. 4, p. 475-487.
[6]. Monson, P.J.E., Steen, W.M., “Comparison of Laser Hardfacing with Conventional Processes”, Surface Engineering, vol. 6, no. 3, (1990), p. 185-193.
[7]. Pelletier, J.M., et al., “Influence of Processing Conditions on Geometrical Features of Laser Claddings Obtained by Powder Injection”, J. of Materials Science, vol. 28, (1993), p. 5184-5188.
[8]. Schnieder, M.F., “Laser cladding with powder”, Ph. D. Thesis University of Twente, Enschede, Haarlem, (1998), p. 80-84.
Published
2005-11-15
How to Cite
1.
LEVCOVICI DT, BOICIUC R, LEVCOVICI SM, GHEORGHIEŞ C. Mechanical and Laser Cladding of High-Speed Steel on a Steel Support. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science [Internet]. 15Nov.2005 [cited 27Apr.2024];28(2):82-6. Available from: https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/3258
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