ESAB PCM-875A - Cut Quality and Process Data

SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation
4-5
4.5 Cut Quality
4.5.1 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 undesirable cutting results. To
begin select the most prominent condition:
§ 4.5.2 Cut angle, negative or positive
§ 4.5.3 Cut not flat, rounded or undercut
§ 4.5.4 Surface roughness
§ 4.5.5 Dross
§ 4.5.6 Dimensional Accuracy
§ Process Data
Usually the recommended cutting parameters will give
optimal cut quality. Occasionally conditions may vary
and slight adjustments will be required. If so:
· Make small incremental adjustments when making
corrections.
· Adjust arc voltage in one 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.