BS ISO 18785-1:2018 defines friction stir spot welding (FSSW) process terms and definitions.Cross References:ISO/TR 25901-1ISO 14732ISO 25239-1ISO 18785-3ISO 18785-2ISO 18785-4ISO 17637ISO 6520-1ISO 15607ISO 18785-5ISO 10042All current amendments available at time of purchase are included with the purchase of this document.