Welding Electrode

Welding electrodes are installed in the weld head to touch and maintain contact with the workpieces through the full weld schedule. The welding electrodes play three different roles in resistance welding:

  • Maintaining uniform current density
  • Concentrating current at welding points
  • Maintaining thermal balance during welding

Electrodes are available in many shapes. Electrode material and shape are determined by considering the force necessary for welding and the thermal conductivity of the workpieces.

In conventional macro-welding, e.g. car body assembly, the electrodes are made of copper alloys and usually water-cooled. However, in micro-welding, the electrodes are made of a wide variety of conductive and refractory materials depending on the parts to be joined, and are air-cooled.

News & Events - AMADA WELD TECH

News and Events

Learn more about AMADA WELD TECH and our industry-leading products in our newsroom or at an upcoming tradeshow, webinar or employment event.

Visit the Newsroom
Learning - AMADA WELD TECH

Learning Center

An educated customer is a happy customer! Learn more about our eight different manufacturing technologies, watch a video, schedule some training or sign up for our blog in the Learning Center.

Visit the Learning Center
Support - AMADA WELD TECH

Support

Everyone needs a little help now and again. Visit the support center for technical documents, applications assistance, field service, customer service, sales assistance, software downloads and more.

Visit the Support Center