Mechanical and Laser Cladding of High-Speed Steel on a Steel Support

Dan Teodor LEVCOVICI; Radu BOICIUC; Sanda Maria LEVCOVICI; Constantin GHEORGHIEŞ

Autor/innen

Dan Teodor LEVCOVICI S.C. Uzinsider Engineering S.A. Galaţi, Romania
Radu BOICIUC S.C. Uzinsider Engineering S.A. Galaţi, Romania
Sanda Maria LEVCOVICI "Dunarea de Jos" University of Galati, Romania
Constantin GHEORGHIEŞ "Dunarea de Jos" University of Galati, Romania

Schlagwörter:

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.