SHORT ARC AND DRAWN ARC WELDING EQUIPMENTS

Drawn arc stud welding is a process used to securely join a metal threaded stud to a metal surface. It is widely used in industrial applications because it creates strong, reliable, and long-lasting connections.

The process is carried out using a dedicated welding system equipped with a welding gun. When activated, the gun generates an electric arc that melts both the tip of the stud and the surface beneath it at the same time.

This creates a weld pool, which is held in place by a ceramic ferrule. The ferrule helps contain the molten metal and ensures a clean, consistent weld, resulting in a high-quality and durable joint.

In the long arc cycle welding process, the welding stud or pin is joined by an electric arc that generates enough heat to melt both the base material and the fastener. The resulting molten pool is either contained by a ceramic ferrule or left exposed and protected by an inert gas, which is automatically supplied through a protective positioner mounted on the welding gun.

Short arc cycle welding, on the other hand, produces the electric arc in just a few milliseconds. Because of the extremely short welding time, much less material is melted compared to the long arc process. This method is ideal for welding threaded studs up to M8 on thin sheet metal, minimizing heat input and reducing the risk of distortion.

At A.T.S. Lamberti, we offer a wide range of welding machines designed for drawn arc welding applications, such as welding shear connectors used in mechanical carpentry and long cycle welding studs for the shipbuilding industry.

The drawn arc welding machines supplied by A.T.S. Lamberti are mainly used for medium-heavy carpentry work, where reliability, strength, and high performance are essential.

Short cycle stud welding is mainly used in the automotive industry, especially for welding thin sheets or working in difficult positions, thanks to its precision and reduced heat input.

The key elements for achieving a high-quality weld include careful surface cleaning, the selection of the correct equipment that A.T.S. Lamberti normally recommends to the customer, the proper adjustment of welding parameters, and the use of certified drawn arc welding studs.