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Copper wire terminal welding relies on a high-efficiency spot welding machine with a built-in special resistance welding transformer. Resistance spot welder uses the principle of resistance welding to achieve precise welding and ensure a firm connection.

In the field of precision hot-press welding, the selection of welding power source is crucial. AC power source has low cost but low control accuracy and high energy consumption; while inverter power source has complex structure but high control accuracy, fast and stable heating speed and low energy consumption. Therefore, inverter DC welding power source has gradually become the mainstream choice in the field of precision welding and is widely used in many welding fields.