Answer: Firstly, the purity of copper wire will directly affect the welding effect of ultrasonic wire harness welding machine, and it must be pure copper wire without oil stains. Individual copper wires may have grease leakage from their insulation, which can affect the welding effect! Secondly, the copper wire should not be exposed to the air for too long after removing the insulation skin, otherwise it is easy to form an oxide layer and affect welding.

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