TIG stands for tungsten inert gas and is a popular arc welding process for smooth applications however is seen as one of the toughest processes to master.
With TIG (Tungsten Inert Gas) welding the electric arc burns between the non-melting tungsten electrode and the workpiece. The arc is very intense and can be very easily controlled. A separately supplied argon shielding gas protects the arc and the welding zone from the atmosphere. Filler metals can be fed by hand or with a special cold wire feed if necessary. Steel, stainless steel, copper, titanium, etc are welded with direct current. The electrode is connected to the negative pole and ground to a point. Aluminium, magnesium and their alloys should only be welded with alternating current to break open their oxide skin. The electrode is blunt. During welding, it can assume a round or crowned shape. With modern inverter power sources, a pointed tungsten electrode can also be used.
The advantages of TIG welding; its easy handling and good control over the arc enable very comfortable and clean working. The low oxidisation of the workpiece, small welding zone, omission of fluxing agents and non-spattering arc ensure clean, precise seams with no slag inclusions and no reworking.
Selecting the perfect TIG welder is often a stressful task due to cost, various market-leading brands and upgrading to new models creating a manic list of potential machines. What do you need to think about to make sure you get the right machine for your needs?
Looking for a new machine, the price often comes into it and knowing your budget can help narrow down the machine that will fit your needs. Higher price tends to indicate high-quality equipment however if you are looking for a tig welder with a limited budget you can find a welder that is effective for your applications. Pulse welding is also an important part of choosing a tig welder that suits your needs. Pulse welding is the process of welding that alternates between a high and low current, this is beneficial due to a reduction in overall heat.
Over the next few weeks we will be updating our social media with information on our popular TIG welding machines including from market leaders Lorch, ESAB and EWM, give us a follow to make sure you don’t miss out. If this hasn’t helped to narrow down your list of Tig welders, please get in touch and we’ll help you find the right machine for your needs.