Make individual components
Weld joint prep
Create fixture
Load parts into fixture
Pre-load parts to account for weld distortion
Strategically place small welds to fix and holds part together, locking them in-place
Ensure dimensionality/positionality of parts good prior to fully welding
Sequencing and Direction of welds important, to control/balance distortion
Weld/Part Cooling
Grinding/mechanical clean-up
Passivation (corrosion protection)
Heat-treat/stress-relieve (peening/thermal)
NDT/NDI
Part Finishing
Assembly/Other