- Now the arc welding is main method during the welding process
- Reference
- Method: SMAW; MAG; MIG; TIG; SAW; Laser
- Material: Carbon steel; Stainless steel; Alloy steel; Alloys
- Melt: Vacuum melting; Purifying melting
- Heat Treatment: Quenching; Normalizing; Annealing; Tempering
- Properties: Mechanical analysis (Tensile strength, Yield strength, Elongation, Hardness, V-sharp impact); Metallographic; Macro inspection
- Surface treatment: Cleaning; Shot blasting; Grinding; Painting
- Inspection& test: Visual inspection; Dimension inspection; NDT (Non-Destructive Test including PT, MT, UT and RT); Others
- Customer: Aero、 Power generation、 Valve、Automobile、 Industry … …
- Qualified welder and welding process is the critical point of the welding quality
- Special
- PED&AD2000, APID6 certificate for pressure casting vessel
- APZ3.1 according to EN 10204 for production certificate
- APZ3.2 according to EN 10204 for quality level by third party
- Key Points
- Quality system with ISO9000, ISO14000, TS16949
- MIP- Manufacturing& Inspection Plan
- Welder certificate as EN 287 or ASME Sect. IX
- Welding qualified process with WPS and WPQR
- NDT inspector certificate as relevant standard
- Process control
- Documentation system
- Quality tools e.g. SPC, 8D, PPAP, APQP, FMEA, 6SIGMA