BS EN ISO 18595:2007 pdf free.Resistance welding — Spot welding of aluminium and aluminium alloys — Weldability, welding and testing. This International Standard specifies requirements for resistance spot welding in the fabrication of assemblies of aluminium sheet, extrusions (both work- and age-hardening alloys) and/or cast material comprising two or three thicknesses of metal, where the maximum single (sheet) thickness of...