Titanium alloy material for 3D printing and preparation method thereof

The invention relates to the technical field of 3D printing materials, in particular to a titanium alloy material for 3D printing and a preparation method of the titanium alloy material. The obtained cast ingot is subjected to cogging, rolling, straightening, oxide skin turning and cleaning; turning the obtained powdering rod at a low speed to obtain titanium scraps; the titanium scraps are heated to 500-700 DEG C, ground in a grinding machine and screened, and titanium powder is obtained; and the titanium powder is subjected to acid pickling and hydrogen removal, and the titanium alloy material is obtained. By improving the content of the chemical component oxygen element in the raw material sponge titanium, the phenomenon that oxygen increasing exceeds the standard due to smelting is relieved, the content of impurity elements in the titanium alloy material is reduced, and therefore the plasticity index of the prepared 3D printing product is improved. By means of low-temperature heating and mechanical grindi