06 Mechanized Torch Operation - ESAB Cutmaster 60 Manual De Instrucciones

Lead Angle
The angle between the torch and workpiece
depends on the output current setting and torch
travel speed. The recommended lead angle is
35°. At a lead angle greater than 45° the molten
metal will not be blown out of the gouge and
may be blown back onto the torch. If the lead
angle is too small (less than 35°), less material
may be removed, requiring more passes. In
some applications, such as removing welds or
working with light metal, this may be desirable.
Torch Head
Standoff Height
Workpiece
A-00941_AB
Gouging Angle and Standoff Distance
Standoff Distance
The tip to work distance affects gouge quality
and depth. Standoff distance of 1/8 - 1/4 inch
(3 - 6 mm) allows for smooth, consistent metal
removal. Smaller standoff distances may re-
sult in a severance cut rather than a gouge.
Standoff distances greater than 1/4 inch (6 mm)
may result in minimal metal removal or loss of
transferred main arc.
Slag Buildup
Slag generated by gouging on materials such as
carbon 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. How-
ever, 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.
300x5395
4T.06 Mechanized Torch Operation
Cutting With Mechanized Torch
The mechanized torch can be activated by re-
mote 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
35°
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 direc-
tion as torch travel. A five degree leading arc
is generally recommended for air plasma on
mild steel.
3. Trailing Arc
The trailing arc is directed in the opposite direc-
tion as torch travel.
D i r
e c t
i o n
o f T
Straight Arc
A-02586
Mechanized Torch Operation
OPERATION
ESAB CUTMASTER 60
o r c
h T
Standoff Distance
r a v
e l
Trailing Arc
Leading Arc
4T-7