The invention discloses a
processing method for preparing a
titanium welding wire through multi-roller die combined drawing, which comprises the following steps of: 1,
rounding a
titanium bar, and peeling to obtain a bar to be subjected to roller die drawing; secondly, first-time roller die drawing is carried out, and a first-time roller die bar is obtained; thirdly, primary
vacuum annealing is carried out, and a primary roller die bar after
vacuum annealing is obtained; fourthly, secondary roller die drawing is conducted, and a secondary roller die bar is obtained; fifthly, third-time roller die drawing is conducted, and a third-time roller die bar is obtained; and sixthly, finished product
vacuum annealing and
polishing are conducted, and the
titanium welding wire is obtained. Initial primary
large deformation of the titanium bar is achieved through primary roller die drawing, the stress of the initial primary
large deformation of the titanium bar is eliminated through primary vacuum annealing, primary moderate deformation of the titanium bar in the middle process is achieved through secondary roller die drawing, primary small deformation of the titanium bar is achieved through
tertiary roller die drawing, and the titanium bar is subjected to secondary vacuum annealing. And the stress is eliminated and the
surface smoothness is guaranteed through vacuum annealing of a finished product, so that the titanium
welding wire with excellent performance is obtained.