Why are some plasma torches designed to swirl the plasma gas?

Asked By: Sorne Occhetti | Last Updated: 2nd April, 2020
Category: science physics
4.5/5 (65 Views . 28 Votes)
This electron movement is what allows the gas to carry the cutting amperage. A plasma torch uses an alloy copper nozzle to constrict the ionized gas stream to focus the energy to a small cross section. The principle is the same as using a magnifying glass to concentrate the sun's energy to create intense heat.

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Considering this, what effect does the swirling of the plasma gas have?

This causes much higher temperature near the cathode. It is indicated that swirl gas accelerates cathode erosion for two reasons: increasing plenum chamber pressure and changing flow patterns in the vicinity of the cathode.

Furthermore, what gas does a plasma cutter use? Plasma cutters work by sending an electric arc through a gas that is passing through a constricted opening. The gas can be shop air, nitrogen, argon, oxygen.

Also to know is, what is a plasma torch used for?

A plasma torch (also known as a plasma arc, plasma gun, or plasma cutter, plasmatron) is a device for generating a directed flow of plasma.

Why is the body on a manual plasma torch made from a special type of plastic?

It has to withstand the high temperatures, ultraviolet light, and impact. air for low power, water for high powered torches.

36 Related Question Answers Found

Why do plasma cuts have little or no distortion?

Why do plasma cuts have little or no distortion? Because the high temperature allows for a higher travel rate which results in a lower heat input area.

How can I improve the quality of my plasma cut?

Improve cut quality on metal with these plasma cutting tips
  1. Positive cut angle. More material was removed from the top of the cut surface than from the bottom.
  2. Negative cut angle. More material was removed from the bottom of the cut surface than from the top.
  3. Top edge rounding.
  4. High-speed dross.
  5. Low-speed dross.
  6. Top spatter.

How accurate is plasma cutting?

The Inherent Accuracy of Plasma ARC. Plasma will produce good results for perhaps 95% of the applications out there, but you're not going to cut watch parts with it. Plasma produces a cut edge that is as smooth as laser, but it is handicapped by a slight (4 to 5 degree) bevel in the cut face.

What air pressure is required for plasma cutting?

Air requirements for a plasma cutter will require about 4-8 SCFM delivered at 90-120 PSI. This will cover units that are intended for up to 3/8″ thick steel to large units that can handle 7/8″ this steel.

Why do all plasma cuts have a slight bevel?


Bevel is caused by the motion of the plasma gas as it is emitted from the nozzle. In the process to create a plasma arc for cutting the gas must be shaped into a vortex. Because of this an arc will have a direction of rotation.

How are high power plasma torches cooled?

A plasma torch, like an engine, is cooled by a combination of radiation, convection, and conduction. Heat convects away from the torch and torch parts through moving gas or air. Finally, the water-cooling system conducts heat away from the torch parts into the coolant.

What do I need for plasma cutting?

Plasma cutters require an air compressor to function (unless your machine has one built in). You'll need continuous air pressure to make cuts. If you have a small compressor you may have to wait in between cuts for your compressor to refill.

Who invented plasma cutting?

Robert Gage at Union Carbide's Linde Division was granted the first plasma cutting patent in the US on September 10, 1957. Union Carbide held the patent for plasma cutting during the next 17 years.

Can I weld with a plasma cutter?

Plasma cutters work to cut metal at high temperatures. Without any alterations, a plasma cutter and TIG welder are two different tools. TIG welders act to melt two metals together, while the plasma cutter makes precision cuts along one single slap of metal.

How hot is plasma cutting?


The plasma cutter jet reaches 40,000° F, or 22,000° C. This is an insanely hot material to hold at your fingertips.

How hot is plasma?

A plasma is about 45000 degrees Fahrenheit or 25000 degrees Celsius that is around 4 times than the core of the earth.

How is plasma formed?

A plasma may be produced in the laboratory by heating a gas to an extremely high temperature, which causes such vigorous collisions between its atoms and molecules that electrons are ripped free, yielding the requisite electrons and ions.

How much are plasma cutters?

Only 2 left in stock - order soon. In Stock. Again you can't beat it for the price.

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List Price: $335.00
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What is the best cheap plasma cutter?

6 Best Cheap Plasma Cutters – Reviews
  1. Lotos LTP5000D Plasma Cutter – Best Overall. Check Latest Price on Amazon.
  2. Forney Easy Weld 251 Budget Plasma Cutter.
  3. SUPER DEAL CUT 50 Plasma Cutter – Best Value.
  4. PrimeWeld Ct520d Budget Plasma-Cutter.
  5. SUNGOLDPOWER 50A Air Plasma Cutter Inverter.
  6. HITBOX 40A 220V Plasma-Cutter Machine.

Can plasma cut through anything?

Plasma cutting is a process that cuts through electrically conductive materials by means of an accelerated jet of hot plasma. Typical materials cut with a plasma torch include steel, stainless steel, aluminum, brass and copper, although other conductive metals may be cut as well.

What size compressor do I need for a plasma cutter?

Almost any air plasma cutter will run on much smaller compressors than 20 CFM. a 30 amp Hypertherm draws 4.5 cfm @90 psi while cutting, a 45 amp Hypertherm draws 6 [email protected] psi, a 65 and 85 amp Hypertherm draws 6.7 [email protected] psi.