Welding of insulated wire (U shaped terminal and wire)

Joining method : Resistance welding

Welding of insulated wire

This is a welding (fusing) of U shaped terminal and insulated wire, which is used for commutator terminal and winding. W or Mo, with high heat conductivity is used as the electrode material. Two phases of welding profile are used; first phase for removing insulation and second phase for wire and terminal welding. U shaped terminal has an advantage to sandwich the wire mechanically.

Welding of insulated wire
Welding of insulated wire

Welding of insulated wire

Welding of insulated wire

There are similar welding process in relay and transformer manufacturing.

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