Welding Standards in Vietnam
100% VISUAL INSPECTION
The Welding Inspectors responsibilities are extensive and will occur at various stages of the Fabrication process , the Visual Inspection will help the Welding Inspector assure each specific task has been performed. An Inspection Checklist is created to help the Welding Inspector during this process
BEFORE WELDING
Review documentation
Check Welding procedures Check Welder Qualifications Develop Plan for recording and maintaining Inspections
DEVELOP SYSTEM FOR IDENTIFICATION OF REJECTS Check Welding equipment Check quality of filler materials Check weld preparations Check alignment devices [ Jigs ] Check weld cleanliness Check Preheat if required
DURING WELDING Check Welding Variables to compliance with Welding procedures Check quality of individual Welds Check interpass cleaning Check placement of individual weld passes Check back gouge areas Monitor NDT testing
AFTER WELDING Check weld appearance Check weld size Check weld length Check dimensional accuracy of weld Monitor additional NDT testing Prepare Inspection reports
The only way a Visual Inspection can be considered effective is to apply that Inspection at every step of the Fabrication process. The main reason to perform the Inspection on a continuing basis is to discover problems as soon as they occur so they can be corrected most efficiently. The Visual Inspection is therefore performed Before, During and After Welding.
VIETNAMESE EXPORTS NOTES
All our Projects go through an extensive 100% Visual Inspection carried out by Andy together with a fully Qualified Welding Engineer , Mr Ohashi – before , during and after Welding. Another note Andy is studying to be a qualified Welding Inspector already having completed his Basic Level 1 Certificate
One of our procedures to ensure our Welding is compliant to AS 1554.1