ESAB Cutmaster 80 - Section 4 Torch: Operation; 01 Torch Parts Selection; 02 Cut Quality

ESAB CUTMASTER 80
Manual0-5396 OPERATION
4T-1
SECTION 4 TORCH:
OPERATION
4T.01 Torch Parts Selection
Depending on the type of operation to be done deter-
mines the torch parts to be used.
Typeofoperation:
Dragcutting,standoffcuttingorgouging
Torchparts:
ShieldCup,CuttingTip,ElectrodeandStarter
Cartridge
NOTE!
Refer to Section 4T.07 and following
for additional information on torch
parts.
Change the torch parts for a different operation as fol-
lows:
WARNING
Disconnect primary power at the
source before assembling or disas-
semblingpowersupply,torchparts,
or torch and leads assemblies.
NOTE!
The shield cup holds the tip and
starter cartridge in place. Position
the torch with the shield cup facing
upward to keep these parts from fall-
ingoutwhenthecupisremoved.
1. Unscrewandremovetheshieldcupassembly
from the torch head.
2. RemovetheElectrodebypullingitstraightout
of the Torch Head.
A-03510_AB
Electrode
Start Cartridge
Tip
Shield Cup
Torch Head
Torch Parts (Drag Shield Cap & Shield Cup Body
Shown)
3. Install the replacement Electrode by pushing it
straight into the torch head until it clicks.
4. Install the starter cartridge and desired tip for the
operation into the torch head.
5. Hand tighten the shield cup assembly until it is
seated on the torch head. If resistance is felt
wheninstallingthecup,checkthethreadsbefore
proceeding.
4T.02 Cut Quality
NOTE!
Cutqualitydependsheavilyon
setup and parameters such as torch
standoff,alignmentwiththework-
piece,cuttingspeed,gaspressures,
and operator ability.
Cut quality requirements differ depending on applica-
tion.For instance,nitridebuild -upand bevelangle
maybemajorfactorswhenthesurfacewillbewelded
aftercutting.Dross-freecuttingisimportantwhenn-
ishcutqualityisdesiredtoavoidasecondarycleaning
operation. The following cut quality characteristics are
illustratedinthefollowinggure:
Kerf Width
Cut Surface
Bevel Angle
Top Edge
Rounding
Cut Surface
Drag Lines
Dross
Build-Up
Top
Spatter
A-00007
Cut Quality Characteristics
Cut Surface
Thedesiredorspeciedcondition(smoothorrough)
of the face of the cut.
Nitride Build - Up
Nitridedepositscanbeleftonthesurfaceofthecut
when nitrogen is present in the plasma gas stream.
Thesebuildupsmaycreatedifcultiesifthematerial
is to be welded after the cutting process.