Stud Welding Processes

The technology of drawn-arc stud welding

Drawn arc stud welding, also called "stud welding", is an arc pressure welding process. It creates an arc between the pin and the workpiece, which melts both parts. After the welding time has elapsed, the stud dips into the melt, the welding current is switched off and the melt cools down. The aim of the stud welding process is to produce a permanent connection between the stud-shaped elements and the other components.

Step 1

The stud is placed against the workpiece.

Step 2

The stud is lifted off, while current is flowing, thus creating an arc.

Step 3

The arc melts the surfaces of stud and workpiece.

Step 4

The stud is plunged into the weld pool.

Step 5

A cross-sectional joint is achived.

Advantages of KÖCO-Stud Welding Technology

By means of KÖCO-Stud Welding Technology, Threaded Studs, plain studs, Tapped Studs, Shear Connectors, Anchoring Studs etc. of diameter 2-25 mm will be cross-sectionally welded onto sheet metal, pipes, profiles etc.

The advantages of KÖCO stud welding technology are obvious:

  • A high degree of safety, thanks to cross-sectional joints
  • High productivity through extremely short welding time
  • Options for various combinations of materials
  • Distortion reduced to a minimum through low thermal stress
  • Very little or no damage to the reverse side
  • Hollow parts remain leakproof
  • Access to parts from one side only is sufficient
  • Easy to operate for personnel trained on the job
  • Conform to international standards: EN ISO 14555 and EN ISO 13918
  • Shear connectors officially approved: European Technical Approval ETA-03/0039
  • Innovative stud welding equipment and welding studs from in-house production

Stud welding with ceramic ferrule

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Short-cycle stud welding

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Stud welding with shielding gas

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Stud welding with tip ignition

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