Driving mechanism-knurl or friction drive-gear drive, Mechanical Engineering

Driving mechanism

I). Knurl or Friction Drive: This has either the upper or lower electrode (or both) driven by a friction wheel on the periphery of the electrode. A constant speed is maintained regardless of the electrode diameter.

II). Gear Drive: The speed decreses as the electrode wears. For seam welding of the continer switch small diameter, this drive is effective.

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