Drawn arc stud welding (ARC)

ARC

Drawn arc (ARC) stud welding with ceramic ferrule or shielding gas

The process drawn arc stud welding is mostly used for stud diameters of 3 to 25 mm and a welding time of 100 to 1 500 ms.

Drawn arc stud welding with ceramic ferrule is recommended for studs with diameter of more than 12 mm. If it is required to protect the weld pool from atmosphere, shielding gas should be used. This process variant is also used with automated applications.

Arc Phase1
Welding process with ceramic ferrule: Joining of stud-type welding elements with a diameter 2 to 25 mm (M24) onto thicker sheets of about 2 mm or higher. Mild steel and stainless steel.
Arc Phase2
The welding stud is lifted and a secondary arc (pilot arc) of low current is ignited between stud tip and work piece.
Arc Phase3
Then the ignition of the main arc is carried out. Stud and work piece are melted. The stud is moved to the work piece, the two molten zones join.
Arc Phase4
The molten areas solidify. The short and clean welding process does not require any machining.
Arc Phase5
As a result, an even joint strength is achieved which is above the stud and base material.

Drawn arc stud welding with ceramic ferrule or shielding gas

Arc welding process ceramik
  • The stud is inserted into the chuck and - if necessary - equipped with a ceramic ferrule.

  • The stud is placed onto the work piece.

  • A lift mechanism in the welding gun or welding head lifts the stud. A secondary arc (pilot arc) of low current is ignited between stud tip and work piece.

  • Then the ignition of the main arc is carried out between stud tip and work piece.

  • Stud and work piece are melted.

  • At the end of the adjusted welding time the stud is moved to the work piece, the two molten zones join. The power source is switched off, the weld pool solidifies and cools down.

Examples of applications drawn arc stud welding (ARC)

ARC Drawn arc stud welding with ceramic ferrule, shielding gas or without.

Specifically designed for thicker sheets of about 2 mm or higher.

Application ranges: steel construction, engineering construction, shipbuilding industry, vehicle construction, structural and civil engineering.