Practical TIG Welding: How a TIG Welder Works
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How a TIG Welder Works
02.44
| 00:00 | - In this section of the course, we're going to do a deep dive into every aspect of the TIG welding machine and process and learn how it all works. |
| 00:08 | By the end of it, you're going to know your machine inside and out, which is the right way to start properly learning this craft as having this foundational knowledge can make understanding machine behaviour as well as diagnosing welding problems much easier. |
| 00:23 | We'll start at the very beginning and TIG stands for tungsten inert gas and this is a welding method that utilises a tungsten electrode to transfer the arc from the welder to the material we're working on which we refer to as the workpiece. |
| 00:38 | This arc is then shielded by inert gas to protect the pool of molten weld as well as the heat affected zone either side of the weld from contaminants in the atmosphere. |
| 00:49 | Unlike a MIG welder, a TIG welder relies on hand feeding the filler material into the weld pool, created by the arc and this gives us the ability to control when as well as how much filler rod we input into the weld. |
| 01:03 | The result is a much smaller and more uniform looking weld that requires less clean up so instead of grinding and blending your welds like you often would when using a MIG welder, the TIG welder can produce finished welds that need little to no attention once completed. |
| 01:19 | Because of this, TIG welding is widely considered as the welding method of choice in most motorsport applications. |
| 01:27 | This preference for TIG in motorsport is due to its precise nature of operation, it's clean and free of any sparks or spatter and during the TIG process, we can manipulate many aspects of our weld to get our desired outcome. |
| 01:41 | Modern TIG welders use inverter technology to drastically reduce the amount of power required from your electrical circuit in your home garage or workshop. |
| 01:49 | This also reduces the physical size of the machine and gives us the ability to weld a wide range of metals like steel, bronze, titanium, nickel, brass, copper, magnesium, aluminium and even gold. |
| 02:02 | Many race teams prefer to use TIG welding to construct items like chassis and suspension components because of its ability to control a number of vital mechanical properties of the steels and alloys used in motorsport. |
| 02:16 | The TIG welding machine gives us the ability to control and fine tune all of the parameters of the weld, such as heat input, weld size, penetration, pre and post flow of the shielding gas and many other variables that you'll learn about as we go through the course. |
| 02:33 | Understanding and mastering all of these variables is essential in order to be able to produce quality, professional looking welds. |
