TIG Welding Basics - For TIG Welders, by a TIG Welder

 Although I've heard about TIG welding, my uncle was a "heliarc welder." What is the distinction?


TIG stands for Tungsten Inert Gas and is used in TIG welding steel. However, before it was dubbed "TIG," it was dubbed "Heliarc" since helium was the gas employed when the method was established. Because inert gas might refer to either helium or argon, it was dubbed TIG when someone determined that argon functioned better. But wait, someone else found that adding modest amounts of hydrogen to certain metals worked wonderfully. The term "inert" no longer applied, therefore the eggheads agreed on a new moniker. Gas Tungsten Arc Welding, or "GTAW," is the technical word for what used to be known as TIG and Heliarc. What's more, guess what? It's still referred to as TIG or even Heliarc. In reality, TIG welding is more often used than Gas Tungsten Arc Welding.


What is TIG, exactly?


In terms of welding technique, TIG welding is similar to gas welding in that the torch is held in one hand while the filler rod is controlled with the other. Because it requires the use of both hands, it is regarded as more challenging than other arc welding procedures. A foot pedal amperage control is often employed, which adds a new level of complexity.


A TIG torch is intended to deliver shielding gas as well as welding current via a tungsten electrode and maybe water or air-cooled. The shielding gas is directed to the weld puddle by a ceramic nozzle, and the electrode is held in place by internal copper elements such as the collet and collet body. For situations where the arc must be targeted and extremely low amperage, the tungsten electrode is sharpened. The arc formed between the tungsten electrode and the workpiece generates the heat that melts the metal and forms the weld puddle. Argon, helium, or a combination of the two shields the arc. Hydrogen is sometimes added in tiny amounts to some metals to enhance the way the puddle flows. When DC current is applied, the arc is exceedingly smooth, silent, and clean. The TIG welding equipment is little noisier when set to Alternating Current, but it is still clean and smooth.


What metals can be welded using the TIG technique?


TIG welding may be used on almost any metal. Steels such as 1010 carbon steel and 4130 chromoly steel, stainless steels such as 304, 321, and 17-7ph, nickel alloys such as inconel 718 and Hastelloy X, aluminum alloys such as 6061,5052, magnesium alloys such as az31b, and titanium alloys such as commercially pure and 6al4v TIG welding may be used to join cobalt alloys like Stellite 6b and l605, copper alloys like Nibral bronze, and pure copper.


What is the best way for me to learn how to TIG weld?


There are several sources that provide basic TIG process concepts. For instance, www.millerwelds.com is a useful resource. To be a competent TIG welder, though, you'll need more than just a webpage. The importance of training and practice cannot be overstated.


I would suggest a TIG Training DVD from the Hobart Institute of Welding or Miller Welding, as well as some focused practice on various material kinds.


The three P's come into play while learning how to TIG:


Practice Practice and Practice

When it comes to the metal that will be welded, the three C's are crucial:


Clean Clean and Clean




Comments

Post a Comment

Popular posts from this blog

TIG Welding: Go With the Best Available Welding Technique

During welding, two materials are fused together, often metal or thermoplastics, by heating them to the point of melting. Other connecting methods, like as brazing or soldering, employ lower temperatures than do welds. The addition of a filler substance strengthens the joint. The following are a few of the greatest ways to weld: Electric welding is another name for SMAW, which is shielded metal arc welding. The weld puddle is protected by using an electrode surrounded by flux. GTAW, or gas tungsten arc welding, is a superior method of joining metals. The weld is known as TIG, and a tungsten electrode is used to create it. MIG, or inert metal gas, is a kind of gas metal arc welding (GMAW). The wire feeding cannon is used in this method, along with either carbon dioxide gas or an argon-based gas mixture. It is extremely similar to MIG, except that a unique tubular wire is used in FCAW. Depending on the filling, it may be used either with or without shielding gas. Submerged arc (SAW): Thi...
Read more

Welding Types and Welding Rods

Welding is the process of heating two pieces of metal together until they fuse together and produce a strong junction (a joint). This requires a great level of expertise and technological sophistication. There are several methods of welding; some need the use of the equipment and modern technology, such as lasers, beams, and other similar devices. Welders deal with a wide range of metals, alloys, and other materials. Oxy-Acetylene In order to weld, a specific welding torch must be used, which must combine oxygen and acetylene gases in order to form a tiny flame that may reach temperatures of up to 6,300 degrees Fahrenheit. A common use for this method is the production of wrought iron gates and fences. In enterprises that operate with copper pipes, such as those that manufacture brass wear plates and brass rods, this sort of binding is often utilized. Cutting with Oxy-Acetylene is a gas cutting technique. Most gas torches are equipped with a lever-style valve that allows for an additio...
Read more

Instructions For Tig Welding - Gas Tungsten Arc Basics For the Noob

 Have you ever wished you could locate some basic  tig welding steel  instructions? Do you want to learn the fundamentals of Tig welding without all the techno-jargon? Without images, this is about as easy as it gets... Machine Settings - Your tig welding machine will be set to DCEN (direct current electrode negative) aka Straight polarity for steel, stainless steel, nickel alloys, and pretty much everything except aluminum and magnesium. The high-frequency mode has been activated (on newer inverters this setting is built-in). The post flow timer is set to at least 10 seconds, and the A/C balance, if available, is set to the DCEN default. Both the contractor and the amperage switch are set to remote. (When the tig mode is set on newer inverters, this is the default). Set polarity to A/C, A/c balance to approximately 7, and high frequency to continuous while tig welding aluminum. All of the other machine parameters are identical to those for tig welding steel. Set the shie...
Read more