TIG Welders - Advice:
All Lincoln TIG Welders have a lot of features and additional options compared to that of the MIG welding range. If you have ever tried to buy one before, then you will know that trying to find a TIG welder that is exactly what you are looking for, let alone being within your budget, can be a truly stressful and annoying process. Although TIG welding is the slowest of all the welding processes, it offers a strong, beautiful looking weld that you can deliver with precision.
Click here for our range of Lincoln Electric TIG welders.
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We know that there are a massive amount of different welders on the market and understand that this can be confusing for even the most experienced welder when it comes to choosing.
Lincoln offer many different lines of TIG welder. One of these such lines, is the Invertec. In the past, TIG welders relied on transformer coils in order to be able to produce the welding current, there is now new technology (called inverters) that can produce the same welding current using a vast array of technical circuitry resulting in less power usage and consumption. Some of the Lincoln Precision TIG lines used the old transformer technology but some of the newer ranges use inverter circuits which provide added accuracy with the bonus of controlling power.
Due to this new technology, saving a lot of power while giving welders added precision it's no wonder that the Lincoln Invertec lines are becoming so popular in shops and businesses throughout the world.
For welding in almost any job we definitely recommend you look at the Lincoln Invertec range. Some of the machines available offer AC DC welding. This makes it much easier for weling on all types of metals. These machines also allow the welder to choose their wave shape such as square, triangular and normal sine for weld-control purposes. Lincoln TIG welders have so much to offer by means of features and performance.
TIG Welding - Information:
Tungsten Inert Gas Welding, otherwise known as TIG Welding, creates an Arc between the electrode and material to which it is being applied with the addition of an optional seperate TIG Welding wire can also be fed into the welding point if required.
This point (also known as the Welding Pool) is shrouded in an inert gas - usually Argon in TIG Welding processes - in order to prevent the oxidisation of the weld. TIG welders usually control the production of this gas.
Regarded by some as the most flexible of all the arc welding processes, TIG has become more and more popular throughout previous years. Although, the process of TIG welding is time consuming, and more expensive when compared to other methods.
TIG Welding Equipment:
There are two main categories of TIG Welding equipment, these are:
| DC Output TIG Welder |
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These are generally used for the majority of welding jobs, including TIG Welding Steel, Stainless Steel and Copper. |
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| Combined AC and DC Output TIG Welder |
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The more versatile of the two types, AC/DC welding equipment allows for the welding of Aluminium and related Alloys. These particular types of TIG welders are expensive when compared to that of the previous, DC-only option. |
TIG Welder Features:
There are also several different TIG Welder Control Features, these are:
| Slope Up/Down |
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The Slope Up feature starts the TIG Welder at a low current, then gradually increases the power that is set by the person operating the TIG Welding. As well as there being TIG Welders with adjustable Slope Up times, there are TIG Welders that have a pre-determined time for this effect to occur that can't be altered. Similarly, the Slope Down function affects the Welder in the same sort of way, fading the power down when the trigger is released. This is beneficial to the powering down process as the sudden topping of a TIG Welder causes the centre of the weld to sink. The Sloping features of a TIG Welder allow the substance created during the weld to hardenat a more beneficial rate, in order to avoid this from happening. |
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| Pre/Post Welding Gas Flow |
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These features allow the control of flow of gas to the targeted area. Ensuring that a strong protective gas shield. Post Welding Gas Flow keeps the consistent flow of protective gas after the arc is gone. This is crucial to the oxidisation process of the Tungsten, ensuring that it is maintained at an efficient state through solidifying. |
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| Pulse Welding |
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The Pulse feature allows the Welder to apply TIG Welding to thin materials with increased control. With this feature, the TIG Welder produces an extra surge of increased power in order to achieve deeper penetration, quickly followed up with low power to prevent any possibility of potential blow through. This feature is also used to penetrate thicker materials while simultaneously maintaining the size of the overall weld. Pulse is a recent addition to TIG Welding, and as a result, most highly-skilled Welder operators don't choose it. |
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| AC Frequency Control |
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TIG Welders that have a combination of AC and DC Output usually come with this feature. The frequency is the overall speed that the TIG Welder Torch changes from positive to negative, and is measured in Hz. This feature allows the operator to control the arc created by the TIG Welder, similarly to that of a torch beam. The higher the frequency, the smaller and more focused welding arc is achieved. |
TIG Welding Electrodes:
There are two main kinds of TIG Welding Electrode, these are:
| Thoriated (also known as Red Tip) |
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| Generally used with TIG Welders with a DC-only Output. |
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| Zirconiated (also known as White Tip) |
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| Used in the application involving TIG Welders with additional AC Output. |
TIG Welders set in AC welding mode allow the Welder to provide a bead of Tungsten at the end. If the diameter of this bead is larger than the diameter of the Tungsten, larger Tungsten should be used. When in DC welding mode, TIG Welders should funnel the Tungsten to a point.
