Model construction of an effective utilization rate for laser cladding powder and analysis of its influencing factors
In order to obtain accurate powder utilization rate,a new effective utilization rate model for laser cladding powder was constructed,and the influence of different process parameters on the utilization rate of laser cladding powder was analyzed.Firstly,based on the actual measurement results of a single pass laser cladding layer,an approximate model of the cladding layer with"two quarter ellipsoids and half elliptical columns"was proposed,and then the utilization rate models of single pass and multi pass overlapping laser cladding powder were derived.Secondly,a single factor experimental design was conducted using laser power,scanning speed and powder feeding speed as design variables,and laser cladding experiments were carried out with three different powders.The results show that each process parameter has a significant influence on the powder utilization rate.The error between the average powder utilization rate calculated using the new model and the actual measured average powder utilization rate is less than 3％,indicating that the new model can accurately calculate the effective powder utilization rate during the laser cladding process.
NETL
NSTL
万方数据
维普
