Optimization of the process of deposition of wear-resisting Stellite coatings on steel by laser radiation

Abstract

Methods for the optimization of parameters of laser powder deposition of Stellite 6 on the surface of AISI 4340 steel are investigated. The methods are used in particular for depositing coatings on shafts of power engineering systems produced from this steel. Optimization was carried out using two methods: experimental–selective; processing of the experimental results by statistical models. It is shown that the experimental–selective method can be used to select several optimum conditions ensuring the highest wear resistance. Processing the experimental results using the statistical models determines the dependence of the geometrical parameters of the bead on the surfacing conditions.

Keywords:

• Laser
• cladding
• powder
• sizes
• regimes
• properties

Notes

Selected from Svarochnoe Proizvodstvo 2017(3) 35–41