What is IHS on a plasma cutter?
IHS is an adjustable parameter that determines the height at which the torch will fire and begin piercing through the plate. In order to set the initial height (also called retract distance) the THC must first find the position of the plate.
How far should the tip be from the metal when plasma arc cutting?
The stand-off cutting technique is the process of holding the tip of the torch between 3 – 4mm from the work piece to achieve the optimum cut.
How can I improve my CNC plasma cut quality?
Improve plasma cut quality with these CNC steel and metal cutting…
- Positive cut angle. More material was removed from the top of the cut surface than from the bottom.
- Negative cut angle.
- Top edge rounding.
- High-speed dross.
- Low-speed dross.
- Top spatter.
What is Pierce height in plasma?
Ideally, the pierce height should be 1/8” off of the material surface you are cutting, to allow the plasma to penetrate, but more importantly when using Arc Voltage Height Control systems, to help maintain the height of the torch tip while the voltage is being read, and maintained.
What is ARC stretch for plasma cutter?
“Stretching” the arc Arc stretching can occur at the beginning and end of the cut. When this happens, the arc cuts into the side wall of the nozzle damaging it. When doing an edge start, the plasma arc should be started with the nozzle orifice directly centered over the edge of the work piece.
What is ARC stretch?
Arc stretching happens when the plasma arc is stretched either behind the torch, or to either side rather than being directly below it. This can happen after a pierce start when the arc is cutting too slowly and does not match the torch movement.
What is IHS height?
How is an arc created in a plasma system?
The spark ionizes the plasma gas, allowing it to become electrically conductive and producing a low-resistance current path between the electrode and nozzle. Along this current path, an initial, low-energy arc—i.e., the pilot arc—forms as energy flows and discharges between the two components.
What is the best torch height controller for cnc plasma cutting?
A proper Torch Height control will yield great results. The Star Lab CNC plasma comes with a standard high performance torch height controller capable of reading and reacting to a 1/4 volt. This Torch height controller also gives a big advantage over slower and proprietary controls with no ability for the user to define presets.
How does the torch height control work?
The torch height control uses arc voltage to maintain a consistent distance from the plate while the torch is cutting. This allows the system to maintain proper torch height regardless of variations in the material, or flatness of the cutting bed.
What is THC device in plasma CNC?
This is usually solved with THC device. THC stands for Torch Height Control. For your plasma CNC application you can use PlanetCNC motion control system together with PlanetCNC torch height controller. Torch height controller consists of torch height controller and torch height sensor device.
How to use planetcnc motion control system for plasma CNC?
For your plasma CNC application you can use PlanetCNC motion control system together with PlanetCNC torch height controller. Torch height controller consists of torch height controller and torch height sensor device. Torch height sensor device measures arc voltage.