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A Brief Overview of Plasma Cutting Systems

by:QUESTT     2020-05-13

The composition provides information about a plasma cutting system that uses an overheated Gas to cut metal.Plasma is the fourth state of matter.It consists of ions, atoms with positive electricity, ions (electrons) with negative electricity, and molecules with positive electricity.It also contains neutral charged atoms.Plasma is a good conductor of electricity.It exists at very high temperatures and is used to cut metal in the cutting system.The gas is released through a very narrow opening, thereby increasing its pressure.Before escaping, the electrode is placed in the position of the current passing through the gas.Under the stimulation of the current, the gas atom produces ions with positive and negative electricity.These ions collide with each other, and they also collide with the rest of the gas atoms to produce more ions.In a short period of time, the gas reaches an overheating state known as the plasma.The cutter has a circuit with an electrode that acts as a negative terminal (cathode) and the metal plate to be cut acts as a positive terminal (anode ).The plasma jet is attracted to the metal plate, which can focus heat up to 30,000 degrees Fahrenheit or 16,648 degrees Celsius on the metal plate to melt it.The narrow opening of the nozzle increases the pressure exerted by the gas, and the gas also blows away the melted metal, thus contributing to the cutting of the metal plate.The plasma arc is kept thin and controlled with the help of shielding gas.The plasma cutting machine has a channel to release the shielding gas, shield the gas to apply pressure and control the arc, and keep the plasma jet pointing to the metal plate.Inert or semi-Inert gas is used as a shielding gas to cover the area in which the plasma arc or jet touches the metal.This cutter is also known as the plasma torch.There are two types of them: manual and computer-controlled.Computer CNC Plasma Cutting Machine is a machine that operates and guides with the help of a computer.Software like CAD/CAM is an integral part of every CNC machine tool.Computer--It is used to create a 3D model of the physical components to be produced.It helps to verify the design of the component and test it on the computer screen to check how this design fits the overall situation.Computer--It is a CNC programming tool that converts the design into CNC code.The component design created using CAD software is converted to CNC code and then used by a direct numerical control (DNC) program that controls the CNC machine.The selection of CNC cutting machines used by technicians depends on the type of metal to be cut.The choice of gas to be heated to produce a plasma jet and inert gas to control the plasma jet also depends on the metal.The precise handling of the machine and the appropriate distance between the plasma arc and the metal plate are necessary for precise cutting.A mixture of oxygen and nitrogen is used in this process of metals such as stainless steel.It produces a non-Oxidation plasma jetDifferent metals use different plasma gases.Here are the different types of plasma cutting techniques commonly used.In 1957, the combined carbide introduced the \"dry arc\" technique for generating plasma jets.This method uses different plasma gas to cut stainless steel, aluminum plate or soft steel.In the 1960 s, this method was used for largeScale of Eastern Europe.25% faster than before.xa0Method.Water is used to shield the contact area between the plasma jet and the metal plate, not the inert gas.This method improves the electrode life by providing a cooling effect.Water-In this method, water is injected into the plasma arc radial to increase the arc shrinkage, which is very useful for maintaining accuracy.Keep the metal sheet immersed in 2-3 inch of the water is then cut with an arc.This method reduces unnecessary things such as noise, glare, and smoke generated in the actual process.The physical properties of the metal and the carrying capacity of the tool determine the depth at which it can be cut.The following are CNC plasma cutting machines.Heavy-Working Unit with current capacity of 1000 Amps for cutting 12-inch thick.Use portable knives with current as low as 12-There are 25 amps on the market.They are small in size and allow the operator to move freely.These knives are manufactured for speed and accuracy and are ideal for achieving mass production goals.Used in aircraft manufacturing, shipbuilding, automotive industry, etc.Used to cut sheet metal.Today, artists use small portable CNC plasma cutting machines in the studio to turn their ideas into real objects.The far-The impact of plasma cutting machines on the entire manufacturing industry is amazing and immeasurable.
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