Hypertherm HyPerformance Plasma HPR400, Instruction Manual

Page: 123 / 355

OperatiOn
HPR400XD Auto Gas – 806160 4-23
Additional factors of cut quality
cause
The torch is too low.
The torch is too high.
Square cut
\
Solution
Increase arc voltage to raise the torch.
Decrease arc voltage to lower the torch.
Positive cut angle
Negative cut angle
Problem
Additional factors of cut quality
cut angle
Note: The squarest cut angle will be on the right side with respect to the forward motion of the torch.
Note: To determine whether a cut-angle problem is being caused by the plasma system or the drive
system, make a test cut and measure the angle of each side. Next, rotate the torch 90° in its
holder and repeat the process. If the angles are the same in both tests, the problem is in the
drive system.
If a cut-angle problem persists after “mechanical causes” have been eliminated (see Tips for table and torch, previous
page), c heck the t orch-to-work distance, especially if cut angles are all positive or all negative.
• A positive cut angle results when more material is re moved from the top of the cut than from the bottom.
• A negative cut angle results when more material is removed from the bottom of the cut.