ÖNORM EN ISO 14373

This document specifies requirements for resistance spot welding in the fabrication of assemblies of uncoated, and metallic coated or weldable non-metallic coated low carbon steel, comprising two or three sheets of metal, where the maximum single sheet thickness of components to be welded is within the range 0,4 mm to 3 mm. This document is applicable to welding of sheets of the same or unequal thickness, where the thickness ratio is less than or equal to 3:1. It applies to the welding of three sheets, where the total thickness is less than or equal to 9 mm. Welding with the following types of equipment is within the scope of this document: a) pedestal welding equipment; b) portable welding guns; c) automatic welding equipment where the components are fed by robots or automatic feeding equipment; d) multi-spot welding machine; e) robotic welding machine. Information on appropriate welding equipment is given in Annex A, and information on spot welding conditions is given in Annex B. This information is provided for guidance only. Depending on the service conditions of the fabrication, the type of welding equipment, the characteristics of the secondary circuit, electrode force actuation system,, the electrode material, and the shape, it is possible that certain modifications are necessary. In such cases, further information can be obtained from the relevant application standard, where one exists.