Many industrial apparatus are made of steel and other metals. For the process, steel and such metals need to be cut, pasted and fused. Plasma cutting is the method through which all such metals are being cut. Plasma cutting operates with a noble gas or air compressed beyond a certain point. Such high pressure air blows out of the nozzle towards the metal surface. Simultaneously, it also creates an arc of electricity between the nozzle and the metal surface. This converts the gas in the zone to plasma. Plasma is hot and hence melts the metal. At the same time, it is quick enough to cast the molten metal away from the vicinity.
Plasma can be harmful. We are talking of high temperatures here. So its always better to be protected. You should shelter yourself sufficiently. This can include welding gloves, welding helmets and welding masks. Gloves and helmets area great counterfoil against the heat and plasma and the welding mask can save you from harm that might result from poisonous build-up. Often, the reaction of plasma and metal creates marginally poisonous mixture. Continuously inhaling such things can cause harm to the respiratory tracts in a long run. This is how protective clothing becomes so important during welding.
Oxy-acetylene welding is another welding process that has got quite some value. It uses a fuel and oxygen as source particles. Oxy-acetylene welding is not discussed in industrial quarters much but they are perfect tools for cutting tubes and pipes. Apart from iron welding, it can also be used for brazing, and metal heating. Oxy-acetylene welding binds two metals by connecting them through the molten pool which the metals share at the center. It has two tanks; oxygen and a fuel tank. It makes the work of cutting and welding quite feasible.
Oxy-acetylene flames are utilized a lot in jewelry making industry and glass cutting factories. Apart from this, they are also extensively used in stonework, sculpture and artifact creations. Couple of pressure regulators and hoses is all that is needed. Acetylene is the most essential constituent and it is shipped in special cylinders laid with porous materials.
TIG welding or Tungsten Inert Gas welding is a highly effective process. It also creates an electric art between the welded object and tungsten. The tungsten on offer is non-consumable. Tungsten is protected from oxidizing rapidly by the presence of an inert gas. Argon is the most popular choice in TIG welding. It is considered great as it does not create slag which is so detrimental for the flux. Welding heat produced by TIG welding creates a constricted heat zone which guards against cracking and distortion of welded metal. Torch body for TIG welding is quite small. This replicates a pencil and hence it is easy to be used and can let you weld precisely.
MIG welding or Metal Inert Gas welding uses a consumable electrode. It causes spatter and there is also slag. This dilutes the flux and the spatter makes viewing difficult for the operator. The wire made by MIG welding is tougher than TIG welding and is hence more difficult to be hammered.
Today, many plasma cutter brands are floating in the market. Esab, Thermadyne, Hypertherm, Lincoln Electric and Miller are doing pretty well. Miller Spectrum 625 Plasma Cutter uses Wind Funnel Technique for sifting the abrasive dust from the inner parts of the machine. It also effectively reduces voltage drops and requires 30 percent lesser current to work for identical ranges of cutting. It amply increases work area of an operator by incorporating extension cords. Today, it is used for maintenance, auto body, prototyping and fabrication.
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