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How are torch heads of a plasma arc cutter cooled?

Updated: 9/17/2019
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Q: How are torch heads of a plasma arc cutter cooled?
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How do you remove 2000 silverado rocker panels?

It's a matter of having to cut them out with a cut-off tool, a cutting torch or a plasma cutter.


How to Use a Plasma Cutter?

A plasma cutter is a device that uses compressed air or an inert gas blown through a high speed nozzle to cut metal. As the inert gas or compressed air is blown out of the nozzle, an electric arc is formed from the nozzle to the surface of the material being cut. Some of the inert gas or compressed air is converted into plasma as it touches the material being cut, and the heat from this plasma is used to cut the metal. There are two types of plasma cutters most commonly used in commercial applications. The HF (high frequency) Contact plasma cutter initiates an arc by using a high frequency, high-voltage spark to ionise the air through the torch head. While the use of this method is quite common, it is not suitable for CNC cutting applications because it requires the torch to be in contact with the material that is being cut. The other method commonly used in commerical applications is the Pilot Arc method. This method uses a high-voltage, low current circuit to create a spark within the torch body. The creation of this spark generates a pocket of plasma gas, or a pilot arc. The pilot arc is able to maintain itself because there is a return electrical path in the torch head. The pilot arc is maintained until the torch comes into contact with the material being cut, at which time the main plasma cutting arc is ignited. Because this method does not require the torch to be in contact with the material it is cutting in order to ignite, this type of plasma cutter is used across all plasma cutter applications. Over the last decade, manufacturers of plasma cutters have continued to roll out new models that feature smaller nozzles and thinner plasma arcs. As these components have become smaller, plasma cutters have been reduced in size to the point where there are now hand-held plasma cutters. This development has made plasma cutters not only easier to handle, but also much more precise. Another benefit of the increasing miniaturization of plasma cutters has been a reduction in their cost. This reduction in cost has now made the purchase of a plasma cutter within the reach of most hobbyists.


Will a plasma cutter cut a cast iron pipe?

Yes, it should, I actually have a project that needs me to cut a cast iron pipe, and my soulution was to use a plasma cutter. The plasma cutter was develiped to cut both ferrous and non-ferrous materialls. Unlike a oxy-gas torch which is only good for steel which has a high Iron content, Plasma will cut steel, stainless steel (which has a much lower Iron content), Aluminum, and I am sure will cut other metals as well. The cutting action is based more on the extreme concentrated heat cutting the material more than a chemical reaction, or burning action of the material.


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With a pipe cutter or cutting torch or a chop saw


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I'm going to need a bigger plasma torch for this job... The plasma effect is a computer-based visual effect.


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You can use an oxy-acetylene torch, a plasma cutter, something called a cold saw(basically a motorized hacksaw) or even a line-cutting shaped charge. A suitably sized angle grinder would work too.


How a Plasma Cutter Works?

In the modern metal shop, the plasma cutter is a valuable tool. This device can cut through extraordinarily thick sections of steel with the precision of a pencil, yet the cutting head itself only weighs a few pounds. What is the secret behind this extraordinary device? A plasma cutter uses plasma to cut through metals. A plasma is the fourth state of matter and comes about when individual molecules are given so much energy that they split into high-energy ions. The plasma generated by plasma torch can reach tens of thousands of degrees Fahrenheit, more than enough to slice through metals as if they were made of paper. A plasma cutter system has several components: The power supply, the gas supply, and the tip. The tip consists of an inner and outer electrode to which a high voltage is applied. This causes a continuous electric arc to jump between the electrodes, much like a welder. A high-pressure gas is supplied to the tip by the gas delivery system typically consisting of bottled air or other inert gases. This gas is ionized by the electric arc and changes into a plasma as it exits the tip at extreme velocity and temperature, forming the plasma cutting flame. This superheated plasma is then brought into contact with the workpiece. The electric arc jumps between the center electrode to the workpiece, focusing the plasma on a very small spot. The material of the workpiece is then quickly eroded away by the extreme temperature, achieving the plasma cutter’s well-known slicing effect. Plasma cutters are mostly used in industry for cutting sheet and plate metals. A plasma cutter can be mounted to a CNC platform to cut out intricate computer-controlled shapes directly from CAD files. Until recently, plasma cutters were prohibitively expensive for all but the biggest metal fabricating industries. However, this has changed as the popularity of these devices has increased. It is now possible to purchase a light-duty plasma cutting unit for less than a thousand dollars. These inexpensive units have found their way into auto body shops and the garages of hobbyists across the country.


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Kit converts into 28 different torch styles while using the A-150 and A-125 existing cable. Features collets, collet bodies, nozzles, torch heads, handle and more.


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Plasma cutter. Oxyacetylene cutting torch. Hacksaw. Powered hacksaw. Bandsaw. Angle grinder. Metal-cutting chopsaw. Jaws of Life. Sawzall. Abrasivejet cutter. Laser cutter. Electric Discharge Machining system. Milling machine.


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Is plasma cutting cleaner then a torch cutting system?

plasma arc cutting (PAC) systems were much less expensive.Plasma cutting systems can be either plasma cutting tables or handheld torches. A larger, industrial plasma cutting table will obviously cost more