SECTION 4
OPERATION
4-3
4.2 Cut Quality
4.2.1 Introduction
Causes affecting cut quality are interdependent.
Changing one variable affects all others. Determining a
solution may be difficult. The following guide offers
possible solutions to different undesirable cutting
results. To begin select the most prominent condition:
§
4.2.2 Cut Angle, negative or positive
§
4.2.3 Cut not flat, rounded or undercut
§
4.2.4 Surface roughness
§
4.2.5 Dross
Usually the recommended cutting parameters will give
optimal cut quality, occasionally conditions may vary
enough that slight adjustments will be required. If so:
•
Make small incremental adjustments when
making corrections.
•
Adjust Arc Voltage in 5 volt increments, up or
down as required.
•
Adjust cutting speed 5% or less as required
until conditions improve.
NOTICE
Before attempting ANY corrections, check cutting
variables
with the factory recommended
settings/consumable part numbers listed in
Process Data.
4.2.2 Cut Angle
Negative
Cut Angle
Top dimension is greater than the bottom.
•
Misaligned torch
•
Bent or warped material
•
Worn or damaged consumables
•
Standoff low (arc voltage)
•
Cutting speed slow (machine travel rate)
Part
Drop
Part
Summary of Contents for Precision Plasmarc
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