There are quite a number of ISO standards related to resistance welding. Here we present frequently used standards in three categories.
- Resistance welding processes – welding procedures for different types of welding, how to determine the weldability lobe, evaluation of weldability, quality requirements for welding.
- Resistance welding equipment and electrodes – mechanical and electrical requirement of welding machine, electrode specifications
- Resistance welding quality and weld strength system – weld strength testing methods
Standards for Resistance Welding Processes
ISO 17677-1:2021
Resistance welding — Vocabulary — Part 1: Spot, projection and seam welding
ISO 15609-5:2011
Specification and qualification of welding procedures for metallic materials — Welding procedure specification — Part 5: Resistance welding
ISO 14373:2015
Resistance welding — Procedure for spot welding of uncoated and coated low carbon steels
ISO 16432:2006
Resistance welding — Procedure for projection welding of uncoated and coated low carbon steels using embossed projection(s)
ISO 16433:2006
Resistance welding — Procedure for seam welding of uncoated and coated low carbon steels
ISO 14327:2004
Resistance welding — Procedures for determining the weldability lobe for resistance spot, projection and seam welding
ISO 18595:2021
Resistance welding — Spot welding of aluminium and aluminium alloys — Weldability, welding and testing
ISO 15613:2004
Specification and qualification of welding procedures for metallic materials — Qualification based on pre-production welding test
ISO 15614-12:2014
Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 12: Spot, seam and projection welding
ISO 15614-13:2012
Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 13: Upset (resistance butt) and flash welding
ISO 18278-1:2015
Resistance welding — Weldability — Part 1: General requirements for the evaluation of weldability for resistance spot, seam and projection welding of metallic materials
ISO 18278-2:2016
Resistance welding — Weldability — Part 2: Evaluation procedures for weldability in spot welding
ISO 18278-3:2017
Resistance welding — Weldability — Part 3: Evaluation procedures for weldability in spot weld bonding
ISO 14554-1:2013
Quality requirements for welding — Resistance welding of metallic materials — Part 1: Comprehensive quality requirements
ISO 14554-2:2013
Quality requirements for welding — Resistance welding of metallic materials — Part 2: Elementary quality requirements
Standards for Resistance Welding Equipment
ISO 7286:1986
Graphical symbols for resistance welding equipment
ISO 669:2016
Resistance welding — Resistance welding equipment — Mechanical and electrical requirements
ISO 5182:2016
Resistance welding — Materials for electrodes and ancillary equipment
ISO 5821:2009
Resistance welding — Spot welding electrode caps
ISO 5830:1984
Resistance spot welding — Male electrode caps
ISO 5184:1979
Straight resistance spot welding electrodes
ISO 17657-5:2005
Resistance welding — Welding current measurement for resistance welding — Part 5: Verification of welding current measuring system
Standards for Resistance Welding Quality and Weld Strength Tests
Resistance welding — Testing of welds — Peel and chisel testing of resistance spot and projection welds
Resistance welding — Destructive testing of welds — Specimen dimensions and procedure for cross tension testing of resistance spot and embossed projection welds
Resistance welding — Destructive testing of welds — Specimen dimensions and procedure for tensile shear testing resistance spot and embossed projection welds
Resistance welding — Destructive testing of welds — Specimen dimensions and procedure for mechanized peel testing resistance spot, seam and embossed projection welds
Resistance welding — Destructive tests on welds in metallic materials — Torsion test of resistance spot welds