Posts Tagged ‘TIG’
Wednesday, October 27th, 2010
• TIG weld helps in welding thin metals such as aluminum. It is able to weld thin metals as it leaves no slag or flux after the welding process.
• It can weld any positions whether it is flat, horizontal, vertical or overhead. The main reason it can be welded in all positions is because it does not create sparks or slags.
• TIG Welding only uses one Argon gas for heating the welded material and electrode. Using TIG welders is safer as welder has to store only one type of gas in the workshop or trailers where welding is being done.
Tags: TIG, TIG Welder, TIG Welders, TIG welding, TIG welding equipment, Tig Welding Machine, tig weldings
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Wednesday, October 20th, 2010
Tungsten Inert gas (TIG) is one type of arc welding. It is used for complex and stylistic welding on a variety of metals including copper and titanium. TIG welding uses a tungsten electrode to direct the welding arc onto the work piece. TIG welding requires the use of a shielding gas to push air away from the weld. Argon is used as a shielding gas for TIG welding. Because the electrode does not provide filler material like other arc-welding processes, a separate welding rod or wire rod or wire has to be used if filler material is needed to complete the weld. Push method is best for positioning the electrode. Electrode is held at a 10 to 15 degree angle from vertical and pointed towards the direction of the weld. The welder uses the electrode to create a small pool of molten metal and then pushes the metal forward with the electrode in a cyclic motion, adding filler material as needed.
Tags: TIG, TIG weld, TIG Welder, TIG Welders, TIG welding, TIG welding equipment, Tig Welding Machine
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Thursday, October 14th, 2010
The process of TIG welding is like an arc welding process. The process of TIG weld is termed to be more complicated than other arc-welding processes in view of the fact that there is a close tolerance than that is actually required. The process would require a shielding gas so as to push the air away from the weld. Push techniques is considered to be best for positioning the electrodes.
Benefits from TIG welding
1. It offers superior quality of welds
2. The process of weld can be carried on with or without use of filler metal
3. There is a accurate control on welding variables (heat)
4. The weld is free from spatter
5. TIG welder will observe low distortion.
Shielding gases used by TIG welder’s are
• Argon
• Argon/Helium
• Argon + Hydrogen
The main purpose of using shielding gas (typically inert gas like argon) is to shield the weld from corrosion and from other impurities.
The main purpose of adding up helium gas is to increase the level of heat input which in turn increases the speed of welding or the penetration of weld. Whereas the usage of hydrogen gas is to showcase the results of cleaner looking welds and it is also useful for increasing the input of heat.
Tags: TIG, TIG Welder, TIG Welders, TIG welding, TIG welding equipment, Tig Welding Machine
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Friday, September 17th, 2010
Tig welding which is also called as gas tungsten arc welding produce clean precise weld on any metals. Tig welding is used to weld stainless steel, copper alloys, magnesium and aluminum. Higher quality and stronger weld made this welding process a little comparative than other welding processes such as mig welding and arc welding. Tig welding is in practice from 1941 and it utilizes a non consumable electrode called tungsten electrode. Aerospace industry and automobile industry use this welding technology and it welds more metal than any other process.
There are several different types of joints are used with TIG welding and it includes butt joint, lap joint, corner joint and t-joint. The butt joint can be welded without the assistance of a filler rod and two pieces of metal are joined together. Aluminum is the metal that is associated most frequently with tig welding.
Tags: TIG, TIG weld, TIG Welder, TIG Welders, TIG welding, Tig Welding Machine
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Wednesday, September 15th, 2010
If you want to choose a quality tig welder it is important that you get well versed with several technical aspects of this type of tool. You should choose a quality tig welder that can weld different types of metal. You should choose a machine that is capable of working with different types of compressed gas.
• Find out what type of metal you want to weld and whether it can match tig welder’s electrical input. If you want to weld hard metals like steel, cast iron or bronze, an alternating current (AC) welder will work. If you want to weld soft metals like aluminum, you will require direct current (DC) welder.
• Decide how thick metal you will weld. If you are welding thick metals, you need a welder capable of producing high amperages (amps). Low-amp tig welder produces 165 to 200 amps. High-amp welders produce 310 to 700 amps.
• Find out whether your work location can accommodate your welder. Tig welder weigh somewhere around 40 and 200 pounds. Different tig welders will require different plug-ins. Some will require a standard 120-volt plug-in.
• Compare duty cycles.
• Find out whether tig welders can fit your budget.
• Compare features.
• Compare warranties. There are various manufacturers that offer two to three year warranty. Some retailers offer a 90-day return policy.
Tags: TIG, TIG Welder, TIG Welders, welder, Welders
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Wednesday, August 4th, 2010
Aluminum welding is known as the most intractable alloy. These are done according to the grade and type of aluminum used. There are three types of aluminum where welding is done easily. There are commercial grade aluminum, non heat treatable alloy and heat treatable alloy. All these three contains some chemical which leads to easy welding. The first two types consist of pure aluminum and magnesium respectively. Where else heat treatable alloy contains copper, zinc, magnesium or silicon which makes the work of welding difficult. Due to copper you may find crack on the metal while welding.
These generally include Mig welding and Tig welding method during welding. For better result the latest technique used by aluminum welding is the combination of mig welding with arc welding. These welding feed the rod faster than other types of welding. This welds the metal quicker without stopping for brushing or grind. There are few factors which will affect aluminum while welding are the coating of aluminum oxide, conductivity and expansion of thermal and characteristics of melting.
Tags: Aluminum Welding, MIG welding, TIG, TIG welding, Welders, welding
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Tuesday, April 13th, 2010
You can always find that some professionals who are into the welding industry for decades now call of refer TIG Welding as Heliarc. It’s actually nothing wrong or different in that as TIG Welding was called as Heliarc in the beginning.
The process in fact grew to be a perfect on only by 1941 and then later on was used for welding magnesium, aluminum, as well as stainless. Heliarc or TIG as we call it now, works great for welding purposes on airplanes.
Pure helium is the inert shielding gas that is used in Heliarc process for the purpose of protecting the weld pool from the atmosphere. When gases such as hydrogen, oxygen, carbon dioxide, nitrogen and any other external elements contacts the weld pool then it causes a lot of welding defects.
A non-consumable tungsten electrode is the electrode used in TIG Welding process. It’s can be said that the electrode doest not burn or melt away like the other electrodes in stick welding in MIG welding process. The tungsten behaves as the torch in Heliarc welding that generates the heat that is used to melt the metal surface or the filler metal
Tags: TIG, TIG Welders, TIG welding, TIG welding equipment, Tig Welding Machine
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Friday, January 29th, 2010
Tungsten insert gas welding is popularly also known as Gas tungsten arc welding (GTAW). You can protect the welding area from getting contaminated with the help of shielding gas which is insert gas.
Tig welding is more widely used to weld the thin sections of stainless steel and non ferrous metals such as aluminum magnesium and copper alloys. This welding process grants the operator to have a greater control over the weld when compared with other welding procedures such as shielded metal arc welding and gas metal arc welding. Though this welding process is very slow but it provides high quality welds.
Tig welding can be carried on all positions – flat, horizontal, vertical or overhead. Perfect for roll cages and inside confined areas too. Filler rod is one of the most important aspects in this welding process.
Equipments required for tungsten insert gas welding process are welding torch utilizing a non consumable tungsten electrode, a constant-current welding power supply, and a shielding gas source.
During this welding process an arc is formed between a non-consumable tungsten electrode and the metal being welded. Gas is fed through the torch to shield the electrode and molten weld pool. If filler wire is used, it is added to the weld pool separately. Welders have to be careful while doing this procedure.
Tags: TIG, TIG Welder, TIG Welders, TIG welding, TIG welding equipment, Welders
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Saturday, May 9th, 2009
It is the TIG welding process that requires a welder to use a tungsten electrode. The tungsten electrode is for its electrode made of the tungsten metal, one that is capable of withstanding the highest in heats for all metals. The TIG welding process will incorporate the electrode and the electrode will not disintegrate while welding the source material. This non-consumable electrode usually has filler metals and a shielding gas that will protect the weld source as it is being worked on. That is the very basics in the TIG welding process or procedure.
But, when using the pulsed TIG equipment, there is a slight difference in the way that the source material is welded. There are several other process modifications, such as: the hot wire, dabber, and the pulsed-current processes. The hot wire uses a filler metal is heat resistant and is brought to the to the weld pool right before it reaches the melting point. The dabber process is used to place petite welds on slim edges of the source material. The pulse-current method is when the current fluctuates between two different current speeds.
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Tags: pulsed TIG welding equipment, TIG, TIG welding equipment, welder, Welders, welding
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