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Resistance microwelding of fine crossed wires is of increasing industrial importance for medical devices, but the understanding of the process is very limited. A study has been carried on the feasibility of small-scale resistance welding of crossed TiNi fine wire. Welding mechanism is similar to that of small-scale resistance welding of crossed Ni wire, which is mainly four stages (wire cold deformation, surface melting, molten phase squeeze-out and, solid-state bonding). The optimum microstructure and welding parameters were proposed.
Fukumoto et al. (Thu,) studied this question.