ISO 18278-3:2017 specifies procedures for the determination of the acceptable welding current range and the electrode life for spot weld bonding using resistance spot welding with adhesive bonding. ISO 18278-3:2017 is applicable for the evaluation of the weldability of prepared assemblies of uncoated and coated metal sheets with individual thicknesses from 0,4 mm to 6,0 mm.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Weld bonding equipment
4.1 General
4.2 Adhesive dispensing equipment
4.3 Storage chamber
4.4 Electrodes
4.5 Welding current
4.6 Mechanical settings
4.7 Measurement of parameters
4.8 Measurement of results
5 Assembly preparation
6 Preliminary adjustments
6.1 Electrode alignment
6.2 Electrode conditioning
7 Determination of the welding current range
7.1 Test specimens
7.2 Welding parameters
7.3 Test procedure
7.4 Current range criteria
7.5 Three sheet and multiple stack-ups
8 Estimation of electrode life
8.1 Test specimens
8.2 Welding parameters
8.3 Procedure
8.4 Test criteria, interpretation of results
9 Test report
9.1 General
9.2 Welding current range
9.3 Electrode life
Annex A Electrode alignment (informative)
Annex B Specimens with current shunt (informative)
Annex C Specific conditions for steel sheet customer qualification (informative)
Annex D Specimens for destructive testing (informative)
Annex E Example of a test report for welding current range (informative)
Annex F Example of a test report for electrode life test (informative)
ISO 14373:2015 Resistance welding -- Procedure for spot welding of uncoated and coated low carbon steels
ISO 17677-1:2009 Resistance welding -- Vocabulary -- Part 1: Spot, projection and seam 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 14373:2015 Resistance welding -- Procedure for spot welding of uncoated and coated low carbon steels
ISO 17677-1:2009 Resistance welding -- Vocabulary -- Part 1: Spot, projection and seam 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 5182:2016 Resistance welding -- Materials for electrodes and ancillary equipment
ISO 5821:2009 Resistance welding -- Spot welding electrode caps
ISO 669:2016 Resistance welding -- Resistance welding equipment -- Mechanical and electrical requirements