Plasma prosess

Plasma Arc Welding offers greater precision and deeper penetration compared to TIG welding, making it suitable for both thin and thick metals. The PAW process requires more complex and expensive equipment than traditional welding methods, necessitating specialised training and maintenance.

PAW is an advancement to TIG welding process. It is more appreciated in manufacturing industries due to faster production, better weld penetration and capability to weld medium thickness material without grooving in a single pass. The following points are the major conclusions drawn from the present review:

PAW process efficiency is better than other conventional arc welding process. It improves the weld penetration and minimizes the angular distortion, residual stress and helps avoid the grain.

Summary:

• The efficiency of the Plasma Arc Welding (PAW) process is superior to conventional arc welding methods.
• It provides enhanced weld penetration and significantly reduces angular distortion and residual stresses.
• The process also helps prevent coarse grain formation in the weld zone, resulting in improved mechanical properties.

TIG welding, also known as Tungsten Inert Gas welding, is an arc welding process that uses a non-consumable tungsten electrode to produce a weld. The process involves creating an arc between the tungsten electrode and the workpiece in an inert atmosphere, typically provided by argon or helium. A filler metal is often added, depending on the requirements of the job.

TIG welding is known for its precision. It's often used where neatness and control are needed, like in automotive work or art. 

In contrast, plasma welding is faster and more efficient for thicker materials due to its powerful arc.