Resistance welding. Weldability - General requirements for the evaluation of weldability for resistance spot, seam and projection welding of metallic materialsWhat is ISO 18278 1 Resistance welding about? The ISO 18278 series is an international Standard that discusses various requirements of resistance welding weldability. ISO 18278 1 is the first part of the series that specifies procedures for assessing the generic weldability for resistance welding of uncoated and coated metals. It is assumed for ISO 18278 and other linked standards that their application is entrusted to appropriately trained, skilled,

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procedures and requirements for environmental technology verification (ETV)