Hypertherm HyIntensity Fiber Laser Rev.3 - Manual (Page 154)

setup and OperatiOn
3-46 Hypertherm Fiber Laser Instruction Manual – 807090 Revision 3
Example 8: Nozzle size increased from D1.5 to D2.0
In this example, too much oxygen enters the cut. The top lines are not uniform in length, and the bottom lines are also
not as uniform.
thickness
Nozzle Cut parameters
type and
size (mm)
Nozzle
extension
Creep
time
Cut
pressure
Cut
height
Kerf
width
Cut
power
Cut
speed
6 mm
(0.25 in.)
D2.0 23 mm 0.2 sec 0.55 bar
(8 psi)
1 mm
(0.04 in.)
0.35 mm
(0.014 in.)
2000 W 1800 mm/min
(72 in./min)
Cut direction
Example 9: Nozzle size decreased from D1.5 to D1.2
In this example, too little oxygen enters the cut. The top lines are leading too much, and the bottom lines are trailing too
much and not uniform.
thickness
Nozzle Cut parameters
type and
size (mm)
Nozzle
extension
Creep
time
Cut
pressure
Cut
height
Kerf
width
Cut
power
Cut
speed
6 mm
(0.25 in.)
D1.2 23 mm 0.2 sec 0.55 bar
(8 psi)
1 mm
(0.04 in.)
0.35 mm
(0.014 in.)
2000 W 1800 mm/min
(72 in./min)
Cut direction