DIPLOMA IN WELDING TECHNOLOGY
Admissions are open throughout the year for short term courses in welding. At PNS a student gets excellent training in welding so that with in a short period of time he can join as a welder in reputed companies. The classes are being conducted by Mr. Bhaskaran. a retired personnel from Visakhapatanam shipyard after 30 years of his meritorious service.
Industry is now starving for skilled people. At PNS, candidates get fine training that helps him to earn a job with decent payment. Our expert teachers and well equipped lab plays an important role in imparting skills in our students. Thousands of students from PNS are working all over the world contributing their knowledge and skill for developing nations.
• X RAY WELDING
Duration: 4 months,6 months        ( course duration is decided by the course director/ instructor after verifying the skills of the applicant. For students with former experience in welding can reduce the time duration and has to pay lesser course fee )
• TIG WELDING
TIG stands for Tungsten Inert Gas welding. Also called GTAW (Gas Tungsten Arc Welding)  The arc is started with a tungsten electrode shielded by inert gas and filler rod is fed into the weld puddle separately. A slower process than MIG, it produces a more precise weld and can be used at lower amperages for thinner metal and can be used on exotic metals. TIG does require quite a bit more time than MIG to learn. It is similar in technique to gas welding.
Course duration: Depends on the previous experience of the applicant in welding. Modern Imported  electronic TIG welding machines are used for training.
• MIG WELDING
MIG stands for Metal Inert Gas welding, many times called Wire-feed.. Also referred as GMAW (Gas Metal Arc Welding). The "Metal" refers to the wire which is what is used to start the arc. It is shielded by inert gas and the feeding wire also acts as the filler rod. A semi-automatic process, it is fairly easy to learn and use.
 

MIG torch nozzle cutaway image: (1) Torch handle, (2) Molded phenolic dielectric (shown in white) and threaded metal nut insert (yellow), (3) Shielding gas nozzle, (4) Contact tip, (5) Nozzle output face

For certain type of work TIG is required, like welding chrome moly for some racing organizations. Intricate work, like gunsmithing is also well suited to TIG. TIG is used by many auto restorers who prefer a more precise, perfect finish that requires little to no finish work.   TIG is most similar to gas welding in technique, so if you've done oxy-fuel welding, TIG should be a natural transition.

MIG is required by law and by insurance companies in many localities for structural repair of automotive frames. MIG is also much easier to learn and faster to weld.  For doing other types of welding,like sheet metal, it can be a matter of personal preference. For an auto body repair shop or a novice welder, a MIG is a good, practical all-around welder.

• GAS WELDING
Oxy-fuel welding of metal is commonly called oxyacetylene welding since acetylene is the predominant choice for a fuel, or often simply oxy welding, or gas welding. In gas welding and cutting, the heat needed to melt the metal comes from a fuel gas burning with oxygen in a torch.