ESAB Cutmaster 80 - 06 Mechanized Torch Operation

ESAB CUTMASTER 80
Manual0-5396 OPERATION
4T-7
Slag Buildup
Slag generated by gouging on materials such as car-
bonandstainlesssteels,nickels,andalloyedsteels,
canberemovedeasilyinmostcases.Slagdoesnot
obstruct the gouging process if it accumulates to the
sideofthegougepath.However,slagbuild-upcan
causeinconsistenciesandirregularmetalremoval
if large amounts of material build up in front of the
arc. The build - up is most often a result of improper
travelspeed,leadangle,orstandoffheight.
4T.06MechanizedTorchOperation
CuttingWithMechanizedTorch
Themechanizedtorchcanbeactivatedbyremote
control pendant or by a remote interface device
suchasCNC.
1. Tostartacutattheplateedge,positionthecenter
of the torch along the edge of the plate.
Travel Speed
Propertravelspeedisindicatedbythetrailofthe
arc which is seen below the plate. The arc can be
oneofthefollowing:
1. Straight Arc
A straight arc is perpendicular to the workpiece
surface. This arc is generally recommended
for the best cut using air plasma on stainless or
aluminum.
2. Leading Arc
The leading arc is directed in the same direction
astorchtravel.Avedegreeleadingarcisgen-
erally recommended for air plasma on mild steel.
3. Trailing Arc
The trailing arc is directed in the opposite direc-
tionastorchtravel.
Standoff Distance
Straight Arc
Trailing Arc
Leading Arc
Direction of Torch Travel
A-02586
Mechanized Torch Operation
Foroptimumsmoothsurfacequality,thetravelspeed
shouldbe adjustedsothatonlytheleadingedge
ofthearc column producesthecut. If thetravel
speedistooslow,aroughcutwillbeproducedas
thearcmovesfromsidetosideinsearchofmetal
for transfer.
Travelspeedalsoaffectsthebevelangleofacut.
Whencuttinginacircleoraroundacorner,slowing
downthetravelspeedwillresultinasquarercut.
The power source output should be reduced also.
Refer to the appropriate Control Module Operating
ManualforanyCornerSlowdownadjustmentsthat
may be required.
Piercing With Machine Torch
Topiercewithamachinetorch,thearcshouldbe
started with the torch positioned as high as possible
abovetheplate whileallowingthearc totransfer
andpierce.Thisstandoffhelpsavoidhavingmolten
metal blow back onto the front end of the torch.
Whenoperatingwithacuttingmachine,apierceor
dwelltimeisrequired.Torchtravelshouldnotbe
enabled until the arc penetrates the bottom of the
plate.Asmotionbegins,torchstandoffshouldbe
reduced to the recommended 1/8 - 1/4 inch (3-6 mm)
distance for optimum speed and cut quality. Clean
spatter and scale from the shield cup and the tip as
soon as possible. Spraying or dipping the shield cup
in anti - spatter compound will minimize the amount
of scale which adheres to it.