The Drawn Arc DA Process

The Drawn Arc (DA) Process Current and weld time is pre-set to suit the diameter to be welded. The stud is then placed on the plate. Upon triggering a pilot arc occurs as the stud lifts to a pre-set height. The main arc then melts in the weld end of the stud and creates a molten pool in the plate. Return spring pressure forces the stud into the molten pool. The ferrule contains the molten metal and shapes the fillet. -------------------------------------------------------------------------------- Process Very strong penetrative welds are achieved with this process. Ferrules required to contain and shape molten metal. Weld end of stud is fluxed Studs Stud Diameter 3mm to 30mm Material Material thickness 2mm & above Power Power Requirements 3 Phase 230/380/415V Advantages Burns through parent material laminations. Tolerates surface curvature and imperfections, e.g. light rust, scale, grease and some coatings. Gives neat and controlled weld fillet. The only method of studwelding large diameters. The Drawn Arc process also lends itself to multiple applications.

For more information on The Drawn Arc DA Process talk to Taylor Studwelding Systems Ltd