QA

Quick Answer: How Plasma Cutters Work

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. This high speed gas cuts through the molten metal. The gas is also directed around the perimeter of the cutting area to shield the cut.

Can plasma cutters cut anything?

So that means that plasma cutting is only used for materials that are conductive, primarily mild steel, stainless steel, and aluminum. But lots of other metals and alloys are conductive too, such as copper, brass, titanium, monel, inconel, cast iron, etc.

Do plasma cutters need air compressor?

Plasma cutters need air pressure to cut in a two-stage process. Therefore, all plasma cutters need an air compressor to generate enough air pressure for the task. If you buy a plasma cutter without a built-in source of air, you’ll need a separate air compressor.

Are plasma cutters hard to use?

The idea behind a plasma cutter is to cut tough-to-manipulate metal using very high temperatures that turn gas into plasma. Even though there are a lot of intense reactions and very high temperatures forming inside a plasma cutter, the user’s part is relatively easy.

How thick of metal can a 50 amp plasma cutter cut?

Excellent Air Plasma Cutter: The Cut-50 Plasma Cutter can easily cut up to 0.55”(14 mm) metal under maximum output with ultimate portability weighing only 21.56 lbs.

Will a plasma cutter cut rock?

Plasma-jet 24 is initially directed at the rock face 12 until a portion of the rock is melted to form a molten film 80. The electrical conductivity of this molten rock is higher than that of the solid rock. The high velocity jet 24 from torch 20 blows away material and thus enhances the rock cutting.

Can a plasma cutter hurt you?

The plasma cutting arc blows out hot metal and sparks, especially during the initial piercing of the metal. It also heats the workpiece and cutting torch, all of which can cause fire and burns. To protect your eyes while plasma cutting, wear approved safety glasses with side shield.

Can you plasma cut without gas?

Do you need gas for a Plasma Cutter? Gas is needed for a plasma cutter in order for it to work and create the plasma. As mentioned, the most popular gases to use are oxygen, nitrogen or argon.

Can I weld with a plasma cutter?

With the right torch design, a nitrogen-water injection, less expensive than other gases, can work well when plasma cutting aluminum and stainless material for subsequent welding. The process involves an electrode surrounded by nitrogen, which is heated by an electric arc to form the plasma.

What gas is used in plasma cutting?

Compressed Air is the most commonly used gas for lower current plasma cutting and works well for most metals from gauge thickness to 1 inch. It leaves an oxidized cut surface. Compressed air can also be used for plasma gouging on carbon steel.

Can you make money with a plasma cutter?

Plasma tables are able to cut materials much differently than a CNC mill. “Everyone loves something ‘cut in metal’. It is substantial and permanent,” he says. Sign making is a pretty basic business, and you can provide products to your customers at fairly reasonable prices while still making a profit.

How thick of metal can a plasma cutter cut?

Plasma cutters are used to perform cutting and gouging operations, with the average hand-held system capable of cutting a maximum metal thickness of about 1 inch. Plasma typically requires a source for compressed air and a substantial amount of electrical power.

What voltage does a plasma cutter use?

Primary power Plasma cutting requires two basic elements — air and electricity — so the next question to ask is what type of input power is available. Several 30-amp plasma cutters, such as the Spectrum® 375 X-TREME™, operate using 120- or 240-volt power.

Will a plasma cutter cut rusty metal?

Plasma can cut any electrically conductive metal including stainless steel, mild steel, aluminum and more, without pre-heating. Plasma is also great at cutting painted, dirty or even rusted metal.

Can you cut wood with a plasma cutter?

Virtually any metal can be plasma cut including steel, stainless steel, aluminum, brass, copper, etc. Plastics and wood are not electrically conductive and cannot be plasma cut. However, you can use a rotary saw, router, or other tool if you want to cut these materials in the PlasmaCAM machine.

Can you plasma cut Aluminium?

Plasma cutting can be performed on any type of conductive metal – mild steel, aluminum and stainless are some examples. Plasma cutting, however, does not rely on oxidation to work, and thus it can cut aluminum, stainless and any other conductive material.

Can a plasma cutter cut through concrete?

An experimental investigation of heat propagation in the case of plasma cutting of concrete is reported. For a mean power level of 11.2 kW and a nitrogen gas flow rate of 25 Nl/min, the torch is able to cut a concrete plate of 52 mm in thickness with a speed of 20 mm/min and a whole efficiency of about 30%.

What can plasma not cut?

Other materials that cannot be cut include glass, concrete, and ceramics. These materials are non-conductive and are used to insulate electrical products. If you are using a plasma cutter, it simply needs to have a conductivity to complete the electrical connection. Otherwise, it just won’t cut at all.

Can a plasma cutter cut titanium?

Plasma Cutting for Titanium Titanium can also be cut using a plasma torch or plasma CNC machine. Plasma cutting is extremely versatile, and can be especially useful for hard-to-reach angles or parts that do easily not fit on a bench or on a CNC bed.

Do I need welding helmet for plasma cutting?

Safety is of utmost priority when performing plasma cutting. You need to shield your eyes and face with proper plasma cutting glasses, goggles, and/or helmet. You also need to wear a welding gloves, welding jacket, or any clothing that is flame-resistant just like denim.

Does plasma cutting produce UV light?

A plasma cutting arc, like any electric arc, gives off a broad spectrum of electromagnetic radiation, which extends all the way from Infrared light (IR), through the visible spectrum, and into the Ultra Violet (UV) range.

How hot is plasma arc?

The energy of the plasma jet and thus the temperature depends upon the electrical power employed to create arc plasma. A typical value of temperature obtained in a plasma jet torch is on the order of 28000 °C (50000 °F), compared to about 5500 °C (10000 °F) in ordinary electric welding arc.

Can you cut stainless with a plasma cutter?

The plasma cutting process may be used to cut any conductive material, including carbon steels, stainless steels, aluminum, copper, brass, cast metals, and exotic alloys.

Can I use oxygen for plasma cutter?

Oxygen. Using oxygen in your plasma torch offers the fastest cutting speed compared to any other plasma gas while still offering the best cut quality. Oxygen can also be used on stainless steel and aluminum, but it produces a rougher cut surface.