Power Source
Lowest shade for SMAW
Shade 10
type of power source generates only AC
transformer
CSA code which filler metal manufacturers are required to follow
CSA W48-18
weave beads should not exceed
2 1/2 times core or electrode
type of surfacing weld that creates a heat resistant layer
Cladding
how is electrical current measured
amperage
electrode holders are rated according to
current carrying capacity
what is the third digit of E4918
position of operation
what thickness of material is a root or face bend performed?
10 mm (3/8") or less
what is required when cold welding grey cast iron
peening
what melts the surface of the joint when SMAW
heat of the arc
something to consider to minimize power loss and prevent overheating of welding cables
amount of current and distance from work
what is the flux composition of E4310?
Cellulose, sodium
If the electrode melts too fast and weld puddle becomes too large to control what is the correction
turn down amperage
what can excessive convexity create
sharp corners at weld toes
what must be done to change AC to DC?
use diodes to rectify AC output from a transformer
a drooping volt-amp curve indicates
constant current
flux material type that will increase weld metal penetration into the base metal
cellulose
what travel angle does vertical up require
10° to 20° toward direction of travel
what reduces thermal shock and minimizes cracking when hard facing
preheating
what happens to current and voltage if the arc length is increased
current is reduced, arc voltage is increased
if the secondary coil of a transformer has less windings than the primary coil what is the name of the transformer
step-down transformer
what does 308 represent in E308-16
technique used to minimize distortion when welding stainless steel
skip or back-step techniques
which treatment increases corrosion resistance of a stainless welded assembly
chemical post fabrication treatment