The invention discloses a TiNi
shape memory alloy melting and connecting technology, in particular to a high-energy beam
welding press
welding technology and a specific clamp. The invention adopts a high-
energy density beam flow as a
welding implementing heat source with the advantages of centralized and straight voltaic
arc energy and high voltaic arc penetration factor, thus shortening the whole connecting time, decreasing the heating surface area and reducing heat input to the most extent, eliminating the
heat effect area and effectively improving the crassitude problem of the welding
line structure. The specific tooling and fixture adopted by the invention can squeeze the melt welding line
metal out completely by utilizing a pretightening force when an
alloy wire joint part is melt, thus keeping the
crystal grains of the
welding joint to be approach to a parent
metal and no generation of new phases, the welding line welded with a joint to be plump and a smooth transition to acquire a joint basically formed by uniform parent
metal and ensuring the tensile-strength and memory function of the material after being welded; the invention has the advantages of simple technology, reasonable design on the clamp and convenient use. The invention can be widely used in a TiNi
shape memory alloy melting and connecting technology.