A study on the influence mechanism and optimization of physical field parameters of electromagnetic-ultrasonic compound field-assisted laser cladding technology

摘要

Compound field-assisted laser cladding is an advanced laser processing technology. In this paper, the influence mechanism of single physical field parameters of electromagnetic-ultrasonic compound field-assisted laser cladding on the cladding layer as well as the parameter optimization of compound field-assisted laser cladding are investigated. The Box-Behnken design response surface methodology method is used for experimental design. Through the response surface modeling analysis, it is found that the ultrasonic power has the greatest influence on the microhardness of the cladding layer. For the wear volume of the cladding layer, as the ultrasonic power increases, the wear volume increases and the wear resistance of the cladding layer decreases. Besides, a smaller ultrasonic power and a larger DC current value can obtain a cladding layer with a smaller wear volume. The optimal combination of physical field parameters was obtained through response surface methodology parameter analysis and experimental verification.