Research on Additive Remanufacturing Process based on TB6 Titanium Alloy Damaged Parts
Aimed at TB6 titanium alloy damaged parts,the traditional repair methods had all kinds of disadvantages,so the remanufacturing technology of TB6 titanium alloy was studied,and it was studied that the effects of laser power and scanning speed on the characteristic size of cladding layer,the suitable overlapping ratio was selected,and the optimum pro-cessing parameters were obtained as follows:laser power 1 500 W,scanning speed 10 mm/s,powder feeding rate 0.7 r/min,overlap ratio 40％,layer height 0.5 mm.The microstructures and micro hardness of the matrix,heat-affected zone and repair zone were tested,the microstructure of the restoration area were mainly equiaxed grain and columnar crystal.Compared with that of the matrix,the micro hardness of the base,middle and top of the restoration area increased with 13.8％,10.8％and 7.3％respectively.
NETL
NSTL
万方数据
