Shielded metal arc welding.
Flux cored arc welding.
The centre area of the shop.
A confined area at floor level.
An uncluttered, well ventilated area of the shop.
An unventilated, specially enclosed mezzanine area.
Post-weld stress cracking
Drive rolls or the remote control switch.
Wire feeder drive motor or the motor gearbox.
Contact tip or the conduit liner.
Wire speed control or the voltage control.
Wire feed speed.
Will decrease penetration
Penetration will not be affected
Will increase penetration
Will affect penetration on groove welds only
Undercut at the weld edges.
Inadequate gas coverage.
Excessive metal flow.
An increase in stickout.
Erratic wire feed speeds.
An unstable arc.
Overheating of the power source main transformer coil.
At a 45 degree angle
On an incline
Spray arc transfer
Pulsed spray arc transfer
Submerged arc transfer
Reduce source pressure to working pressure.
Maintain a constant pressure of gas.
Maintain a post flow of gas.
Maintain a constant flow of gas.
Reduce welding costs.
Improve wetting action.
Reduce deposition rate
Spray metal transfer.
Globular metal transfer.
Short-circuit metal transfer.
Low gas flow rates in globular transfer.
Ability of the wire to be pushed through a plastic liner.
Method of forming the wire
Circle formed by one wrap of the wire.
Natural twisting action of the wire during forming.
WCB and CSA
CWB and AWS
ASME and CWB
AWS and CSA
Smoke and fumes
Ultraviolet light radiation.
Excessive undercut or lack of fusion
Porosity and cracking in the weld.
Damage to the liner and contact tip.
Slippage or bird nesting at the drive rolls.
Good heat shielding.
Better eye protection.
Anti-spatter nozzle sprays.
Chlorinated degreasing solvents.
Carbon dioxide extinguishers.
Inert shielding gases