Process Control and Quality Assurance

It is technically not possible to evaluate the welding result of aluminum stud welding by means of completely non-destructive testing methods. To ensure the quality of the weld, measures to control the relevant process parameters and associated pre-defined random checks are carried out.

The assessment of the quality requirements can basically be carried out using DIN EN ISO 14555, which defines, besides the stud welding processes, materials and process parameters, the permitted assessment and quality criteria of stud welds. Further information regarding quality criteria can be found in DIN EN 1999-1-1/NA as well as in the manufacturer-specific technical rules and standards of the automobile industry.