Where a welded fastening must withstand static and dynamic loads, vibration and repeated stress, the choice of the stud or other weldable element is an important part of the joint design. Arc welding fasteners are widely used in heavy fabrication and structural steelwork, as well as in infrastructure, industrial construction, shipbuilding and the manufacture of specialist vehicles.
A.T.S. supplies a broad selection of weldable studs and fastening elements for different joint configurations. The range includes threaded studs, internally threaded bushes, Nelson-type shear connectors, plain studs, headed studs and other dedicated components. Depending on the application, the geometry and dimensions of the fastener can be selected according to the required connection and the characteristics of the base material.
Material selection is equally important when specifying a welded fastener. Available solutions include S235 steel and stainless steel such as AISI 304 and AISI 316, while aluminium versions and specific surface treatments can be supplied for suitable applications. The correct combination of fastener, base material and welding process helps achieve the required mechanical performance and resistance to corrosion.
These elements can be used with several arc stud welding processes, including drawn arc welding with a ceramic ferrule, gas-shielded arc welding and short arc welding. Depending on the equipment and production requirements, the fasteners can be processed on manual, semi-automatic or fully automated systems, making them suitable for both individual operations and repeatable industrial production.
For projects with specific dimensional or regulatory requirements, A.T.S. can supply suitable standard or application-specific fastening solutions, including construction shear connectors manufactured in accordance with UNI EN ISO 13918 where applicable. A.T.S. also provides technical support to manufacturers, engineers and purchasing departments when selecting the appropriate fastener for the material, welding process and operating conditions.
