The invention discloses a low-cost
titanium alloy indirect additive manufacturing method. The method comprises the following steps that spherical
powder and / or doped irregularly shaped
titanium or
titanium alloy powder and an
adhesive are fully mixed, stirred and heated, wherein the
powder contains
yttrium accounting for 0.2-1.8% of the total weight of the mixed powder, the addition amount of theadhesive accounts for 25-45% of the total volume of the mixed powder, and the
adhesive is prepared from, by weight, 45-55 parts of
polyethylene macromolecules, 45 -55 parts of paraffin and 4-5 parts of
stearic acid; the mixed powder is prepared into granular feed through a granulator, and an
injection molding machine is used for
processing the granular feed into aluminum
alloy wires; the titaniumalloy wires are loaded on a conventional plastic 3D printer, and a
titanium alloy green body is printed; the
green body is put into a
solvent degreasing device or a container for
degreasing, and the
adhesive is removed; and by means of a high-temperature
pressureless sintering method, the aluminum alloy
green body is solidified to obtain a highly dense
titanium alloy indirect printing finished product. The method has the beneficial effects of being low in material cost, low in printing equipment cost and good in printed product quality.