Imported DC Welding, Argon Welding, TIG and MMA Inverter Machine
Imported Welding Machine and Argon Welding Machines called as TIG Inverter or DC Welding Machines are gaining great importance in Indian Markets. Argon Welding Or Tig Welding Machines come in great variety and quality. We at Merchant Machinery Mart ourselves our manufacturers of Wel Arc Brand of Welding Machines and ourselves gone to TAIWAN and checked and tested the below shown DC Welding Machine, TIG Inverter and Argon Welding Machine. These machines shown below are of TEIBO brand and of great quality. We have already sold hundreds of these Tig And Argon welding machines with great reponse from our clients. But since these are imported machine we do not give any form of guarantee because the expenses of transportation would be too much to repair any machine.
Contact Us For Price Or Queries. We are located in Mumbai, India
DC Welding Machine, DC Inverter Machine, Mumbai, India
DC Welding Machine, TIG Inverter Argon Welding Machine, Mumbai, India
DC, TIG, ARGON and MMA Welding Machine, Mumbai, India
DC Welding, TIG & ARGON Welding Heavy Model Welding Machine, Mumbai, India
We have stock of these machines and would be willing to supply in large quantities to dealers and agents since we ourselves import them.
The Process Of TIG and Argon Welding is explained below in detail
Tungsten inert gas welding or TIG Welding Machine became an overnight success in the early forties and was used mainly for joining magnesium and aluminum. Making use of an inert gas shield instead of a slag to protect the welding, the process was a highly attractive replacement for gas and manual metal arc welding. TIG has played a very big role in the acceptance of aluminum for high quality welding and structural applications.
The process of TIG or Argon Gas welding is to employ direct current with positive or negative electrode or alternating current. In general, alternating current is preferred for welding aluminum and magnesium. Direct current negative is preferred for welding most other forms of materials and for automatic welding of thick aluminum. Thin and light magnesium sometimes is welded with direct current electrode positive.
When alternating current is used with argon, an arc cleaning action is produced at the joint on aluminum and magnesium. This action removes oxides and is particularly beneficial in reducing the porosity when welding aluminum. When using direct current, helium may be used as the shielding gas to produce deeper penetration. Argon and helium mixtures for gas shielding can provide some of the benefits of both gases.
Regardless of the polarity, a constant current welding power source is required. In addition, a high-frequency oscillator is also incorporated in power. High-frequency can be employed with direct current to initiate the arc.
Some power sources provide pulsating direct current with variable frequency. This provision permits control of the molten weld pool while welding thin sections, as well as while welding in positions other than flat. Pulse repetition rates adjustable as are the pulse profiles. The latter are necessary to eliminate craters and crater cracking at the beginning and ends of welds. For manual welding much of this power supply sophistication is not used, because the skilled welder modifies his technique as he observes variations in the weld pool during the progress of the welding.
Melting followed by fusion of the weld joint results the flow of electrons, and the very high temperature of the arc plasma which the current passes and which provides the conductance path. The arc both the current and plasma, along with some generated metallic vapors, etc. Plasma at the electrode can be tens of thousands of degrees Fahrenheit depending on amperage. Within the region it can be ten to twenty thousand degrees Fahrenheit. Heat is lost by radiation and in this regard arc efficiency drops.
Depending on circuit polarity, the arc may from the tungsten electrode or from the workpiece. Most often direct current is used but alternating current is advantageous for welding materials which refractory oxides, for example aluminum. Due to the complex of the arc, involving electron, pressures, temperature gradients, etc. the arc forms what is sometimes referred to as an. Because of this, arc length must be very if narrow welds are to be achieved. Welder skill is therefore to avoid tungsten in the weld pool and electrode. Since the arc and is not focusable the of energy in the arc cannot equal with that in the electron and laser beam processes and therefore, welds due to the lower rate of energy input are usually and have wider affected. As a result welds are more prone to distortion, wider heat affected zones and stresses.
Contact Us For Price Or Queries. We are located in Mumbai, India
