Practical Considerations for Welding Aluminium - Flipbook - Page 5
Quality Assurance
▪ A system of statements, documentation and working instructions, which
conform to National or International standards, to provide confidence in
product quality and integrity
▪ Preliminary Welding Procedure Specification (PWPS)
▪ Initial welding data for pre-qualification trials
▪ Welding Procedure Qualification Record (PQR)
▪ Test to verify that PWPS meet requirements
▪ Internal/in-house requirements
▪ Customer requirements
▪ Customer requirements endorsed by 3rd party
▪ Insurance company
▪ e.g. Lloyds Register, Zurich Risk Management
▪ Contractual document
