Tips to Improve CNC Plasma Quality

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Tips to Improve CNC Plasma Quality
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Achieving better quality is the ultimate goal
of plasma technology.

• For this, you can always ask the customer support
  team for guidance or replace the parts with
  Mazak used parts. However, with proper
  information and some cool tips, you can improve
  your plasma cutting quality on your own.
• Keep reading to learn more!
• 1. Cut in the Right Direction
• Make sure that you cut properly. While using
  standard consumables, the plasma arc spins in
  the clockwise direction as the torch moves
  forward to cut. The squarest angles are on the
  right side, and thus, contour shapes are cut in a
  clockwise direction. It is opposite with
  internal features. There, the torch needs to
  travel anti-clockwise. So, adjust the current
  direction if needed.

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• Refer to the Cut Charts
• Check out the cut charts in your system manual
  and select the appropriate cutting process for
  your application. Select the process depending
  on your material type, thickness, desired cut
  quality, precision, and productivity goals. Based
  on these details, the cut chart would show the
  appropriate consumables, amperage, cut and
  pierce height, shield gases, etc. The arc
  voltage measurement, cutting speed, torch to work
  distance are other parameters listed in the
  chart.
• Use Good Consumables
• See if your consumables are worn or damaged. They
  are essential for precision, and any damage
  could affect the quality and system performance.
  Therefore, do a visual check and replace it when
  needed. Use branded alternatives like Mitsubishi
  spare parts, or Mazak used parts. Always
  lubricate o-rings while replacing consumables.
  Dont over lubricate, as it may affect the
  system performance.
• Also, make sure that you choose right
  consumables. Double-check the part numbers on
  your consumables with the numbers in the manual.

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• Level your Table and Workpiece
• Always level your torch to the workpiece before
  you start squaring. Because if the metal is bent
  or wrapped, it would be impossible to square the
  torch with the workpiece. Or, in the worst case,
  you may have to accept the poor cut quality.
• Hold Right Torch to Work Distance
• Ensure that your torch is not close or far away
  from work, or it would cause rounded cut edges.
  On top of that, if the torch is too close, the
  metal splatter would cause severe damage to the
  torch and nozzle. So, refer to the distance in
  the manual and adjust accordingly. If your parts
  are old, adjust them manually as the distance
  may vary.
• Cut at the Right Speed
• If the cut speed is low, it may result in broader
  kerf, dross, and warpage on thin materials.
  Often, the low-speed dross is collected at the
  bottom of the cut edge and is easy to remove and
  flake off. In contrast, high-speed dross causes a
  thinner bead of molten metal to collect at the
  bottom of the cut. It is harder to remove and
  requires grinding. However, you can

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• eliminate it by reducing the cut speed to allow
  arc time to catch up with the arc torch.
• Use Clean and Dry Air
• If youre using air plasma, make sure its clean
  and dry. The same applies to oxygen or multi-gas
  systems. Use pure and high-quality gases. Make
  sure that the regulators and gas lines are of
  appropriate size. Purge-it manually if required.
  Also, confirm that the purging cycle is
  completed. Lastly, see if there are any
  leakages. In case of emergency, contact your gas
  distributor and get it resolved immediately.
• Tune-up your Table
• Is the speed of table cutting appropriate? Is the
  torch secured tightly to the gantry? Is the
  table vibrating?
• Check all these as often the plasma cutting
  problem is not with plasma cutters but the poor
  motion or table issues. So, tune up your table
  before proceeding with the cut.
• Most importantly, keep implementing these tips.
  Share your experience with us. If you have any
  problem with your system

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or consumables, contact your manufacturer or suppl
ier immediately.
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