Cut Quality; Cut Angle - ESAB Precision Plasmarc Installation, Operation And Maintenance Manual For Residential Installation

SECTION 4

4.2 Cut Quality

4.2.1 Introduction
NOTICE

4.2.2 Cut Angle

Drop
Part
Part
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.
Before attempting ANY corrections, check cutting
variables with the factory recommended
settings/consumable part numbers listed in
Process Data.
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)
•
4-3
OPERATION