Tweco 150XL CE PAK Master - Manuel (Page 34)

OPERATION 4-6 Manual 0-2826
Kerf Width
Cut Surface
Bevel Angle
Top Edge
Rounding
Cut Surface
Drag Lines
Dross
Build-Up
Top
Spatter
A-00007
Figure 4-5 Cut Quality Characteristics
Cut quality will vary on different types of and material
thicknesses. The table shows the cut quality that can be
expected from this equipment for materials with a thick-
ness from gage to 1-1/2 inches (38.1 mm):
Description of Cut Characteristics
Excellent - Minimum bevel (0 - 4°), minimum kerf (2 x tip
orifice diameter), little or no dross, smooth cut
surface.
Good - Slight bevel (0 - 10°), slightly wider kerf (2-1/2 x
tip orifice diameter), some dross (easily re-
moved), medium-smooth cut surface, slight top
edge rounding.
Fair - Excessive bevel (over 10°), wide kerf (over 2-1/2 x
tip orifice diameter), medium to heavy dross,
rough cut surface, top edge rounding.
NOTES
Cut quality depends heavily on set-up and param-
eters such as torch standoff, alignment with the
workpiece, cutting speed, gas pressures, and op-
erator ability.
Cut Quality on Various Materials
Types of Material
Type of Gases Material Thickness Carbon Steel Stainless Aluminum
Air Plasma and Gage (0.5 mm) Excellent Good-Excellent Good-Excellent
Air Secondary Gage to 1 inch (0.5 mm - 25.4 mm) Excellent Good Good
1 to 1-1/2 inch (25.4 mm - 38.1 mm) Excellent Good Good
Nitrogen Plasma Gage (0.5 mm) NR Good-Excellent Good-Excellent
and Air or CO2 Gage to 1/2 inch (0.5 mm - 12.7 mm) NR Good-Excellent Good-Excellent
Secondary 1/2 to 1-1/2 inch (12.7 mm - 38.1
mm)
NR Good-Excellent Good-Excellent
Ar/H2 Plasma and Gage to 1/4 inch (0.5 mm - 6.4 mm) NR NR NR
N2 or CO2 1/4 to 1-1/4 inch (6.4 mm - 31.8 mm) NR Good Excellent
Secondary 1/2 to 1-1/2 inch (12.7 mm - 38.1
mm)
NR Good Excellent