ISO 9606-1 defines the requirements for the qualification testing of welders. The theoretical curriculum covers welding processes, basic metallurgy, weld joint geometry, imperfection types, acceptance criteria, and examination logic. The objective is to ensure that the welder understands not only the manual application but also the technical rationale of the operation and its direct impact on quality.
EN ISO 15614-1 focuses on the experimental validation of welding procedures (WPS). Theoretical training sessions explain the logic of the PQR (Procedure Qualification Record), test coupon preparation, mechanical and non-destructive examination (NDE) requirements, variables (essential and non-essential variables), and the acceptance criteria specified in the standard within a technical framework. Consequently, participants comprehend the scientific foundations of why and how a welding procedure is qualified.
Theoretical welding training under ISO 9606-1 and EN ISO 15614-1 is of critical importance, particularly for welding engineers, Quality Control (QC) personnel, welding supervisors, and technical specialists involved in certification processes. These training programs establish the foundation for a standards-oriented and auditable approach to welding quality that contributes directly to practical implementation.