A multitude of new friction welding processes is available for the automotive industry and many are being commercially exploited. Rotary friction welding is widely used in the manufacture of round parts such as steering columns and drive shafts. The first publications about the use of friction stir welding in car body engineering have been released during the last IBEC conferences [1,2,3,4] , and new studies on friction stud welding and linear friction welding are now being proposed. This paper lists some of these processes and their applications in this industrial sector. Conventional friction welding processes have been well accepted by the automotive industry, and are now widely used to produce safety relevant parts such as suspension parts, steering columns and driveshafts Fig 1. Several newer processes are currently under investigation by automotive companies and their tier 1 suppliers.
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Today, many fabrication industry using a various types of welding process in which arc welding process is very common and widely used welding process. As we are fabricated or manufactured a product with the help of the arc welding, there is a some problem occur during the process and as a result, different types of defects are occurred in the products which reduce the reliability of the products and also reduce the strength of the product or products parts. So it is necessary to avoid the defects. What is MIG Welding? MIG welding is an automatic or semi-automatic process in which a wire connected to a source of direct current acts as an electrode to join two pieces of metal as it is continuously passed through a welding gun. A flow of an inert gas, originally argon, is also passed through the welding gun at the same.
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Welding is a process used to join metal parts by producing a coalescence, called a weld, at a joint. Advances in welding technology have opened the way for innovative designs in structures and machinery. Of modern welding processes, the greatest number fall under the general classifications of arc welding, gas welding and cutting, resistance welding, and brazing.
The new machines provide a true pulse which means it will allow the welder to change the amount of heat applied, and also can control the decreased amount of heat. The tungsten is pointed, creating a finer weld. The layout for the machines is more simple and easier to use.