After studying the influence law of

After studying the influence law of laser power, scanning speed and scanning distance on single channel and single layer molten pool, the better forming process parameters were selected, and the block forming was studied after these process Windows were determined. The main reference standard of this block study is the relative density of the formed part, and the research method is Archimedes drainage method. The optimal technological parameters of TC4 alloy selective laser fusion forming were obtained by determining the block with higher relative density and then determining the corresponding technological parameters of the block forming.