SECTION 4 PCM-875A Mechanized Plasma Cutting System Operation
4-9
4.5.5 Dross
Dross is a by-product of the cutting process. It is the
undesirable material that remains attached to the part.
In most cases, dross can be reduced or eliminated
with proper torch and cutting parameter setup. Refer
to Process Data.
Cut Face
Lag Lines
Roll Over
Side View
High Speed Dross
Material weld or rollover on bottom surface along kerf.
Difficult to remove. May require grinding or chipping.
“S” shaped lag lines.
· Standoff high (arc voltage)
· Cutting speed fast
Cut Face
Lag Lines
Globules
Side View
Slow Speed Dross
Forms as globules on bottom along kerf. Removes
easily.
· Cutting speed slow
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