The style of Tig welding requires heat and tungsten electrodes for welding metals. These can join the metals without filler materials which are seen in other welding equipment. For shielding purpose this uses argon or other gas. Well these are slow than mig welder for joining metals. But these are known for its accuracy and high precision which is good for customized work. Unlike mig welder these require more skills and practice while welding. These have a possibility of preventing cracked seals or from damaging the weld. These have a safety options such as voltage protection and warning of code circuitry. These are also known as the best flexible welding equipment because it can blend all metals for welding purpose. These can also weld thick metals with the help of high amperage. One of the biggest merits of this welding equipment is the cleaning and purity of metal while welding. These melts the two metals together rather than joining two melted metals.
Archive for the ‘Tig Welding’ Category
Know more about Tig welders:
Monday, July 19th, 2010
Few instructions while using Tig welder:
Thursday, July 8th, 2010The Tig welders (Tungsten Inert Gas) are used for welding mainly steel and non ferrous metal. These are very easy to operate and are automatic equipment. They are expensive than other welder equipment but also gives a neat finish than the other welders. These are mostly utilized by the chemical and instrument industries. One of the merits of Tig welder is it joins the other metal by heating and doesn’t need filler material.
There are some instructions which should be followed while using Tig welder. There are:
• The first thing is to establish the Arc and to produces a puddle for this welding. You can also add the filler here and make guidance for the puddle.
• Next thing is to clean the welding equipment before welding. If not cleaned it can damage the welding machine.
• Then turn on the gas according to the metal. For example if you welding steel then argon and carbon dioxide are used.
• The size of weld also matters when it comes to weld an arc. It is lot more easily to weld an arc with small Tig weld.
VARIATION BETWEEN MIG AND TIG WELDING
Tuesday, June 29th, 2010MIG WELDING
• Gas metal arc welding is also known as mig welding
• It is of consumable electrodes method
• It uses wire electrodes
• It is used to weld aluminum and other non ferrous metals
• This welding came into existence in 1948
• It has high quality versatility and speed
• Mig welding uses constant voltage power supply
• Mig welding is the simple welding process, where the learners can learn quickly
• It is used in industries like aircraft and automobiles
TIG WELDING
• Gas tungsten arc welding is called as tig welding
• It is of non consumable electrodes method
• It uses tungsten electrodes
• Tig welding is used to weld stainless steels and non ferrous metals
• It came into existence in 1941
• It uses tungsten electrodes which is used in high temperature applications
• Tig uses constant current power supply
• Tig welding is somewhat complex and takes some time to learn
• It is used in chemical and instrument industries
Explaining About The Heliarc
Tuesday, April 13th, 2010You 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
Things to Do for a Perfect TIG Welding
Monday, April 12th, 2010The three things that you have to look out for that perfect TIG Welding is the length of the arc, torch angle and not shielding the hot tip of the wire.
What happens when an arc length is too long is it won’t pinpoint the heat. If you have long arc, then your TIG welding will turn to be gas welding. If you find that the tip of the rod is blobbing into the puddle, then you can identify that you arc is too long.
Same ways, too much of torch angle will even make the rod to blob. Positioning the thing that you are welding or yourself so that the torch angle is reduces and still making sure that you are able to see the tip of the electrode, is the right way to do it.
If you fail to shield the hot tip of the wire then things won’t come out well as you planned for. When you shield the tip then you can see that the puddle flows out as smooth as honey and your TIG welding will be as neat and tidy as you wanted it to be.
Basics Tips And Information About TIG Welding
Wednesday, April 7th, 2010TIG weld quality is highly dependent on retaining the shape and excellence of the tungsten tip. Weld start data is vital with automated TIG welding applications. Tungsten life is enhanced with a start ramp up from a low current start point then ramp to the operating current.
The TIG has the following advantages and disadvantages
Advantages
• All metals, all positions
• Easy to mechanize and automate
• High quality welds, low distortion
• Flexibility and ease of heat control
And Disadvantages
• Arc blow sensitive
• Lower deposition rates
• Sensitive to cleanliness and contamination
• Good skills required
TIG Finger for an Easy TIG Welding
Tuesday, March 30th, 2010Just like any other welding techniques TIG welding is equally complex but can be made easier with simple tips those are easy to follow as well. It’s advisable to always use a TIG Finger heat shield during the time when you carry on your welding process. Other than this you may not be able to find a better way to steady your hands.
In fact this is one of the trusted and proven to be an easy way for great TIG Welding results. Many try using a TIG Finger made out of a finger from an old leather glove or any other leather bit. But it might not prove to be as efficient and safer that a high-tech TIG Finger that is heat resistant and can slide easily on hot metal pieces.
While you work on aluminum casting objects like transmission housings which want to be preheated or if it gets too much heated up while welding then a TIG finger will surely be of a great help.
So, here you have got an interesting and useful tip for the day to make your welding experience even happier and easier in the coming days.
TIG Welding Requires Proficient Welders
Thursday, March 25th, 2010If you observe most of the TIG welder packages come with a hand or foot pedal that lets you power the heat. Further accessories included in the package are water or air cooled torches. Used for water cooled torches use hot welds. TIG welding machines are accessible in both AC and DC current.
Light task TIG welders frequently run on single or three phase power. Single stage power is mostly used at homes, farm houses or fixes shops. If you purchase a three stage power, you will need phrase converter. If you’re using industrial or heavy duty TIG welder irregularly, then portable converters would be better. Light duty TIG welders necessitate water cooler, micro-start technology for state-of-the-art low amperage initial; and water-cooled torch connections. Most industrial duty equipment has an interior regular cooling fan.
You can locate the size of welding with the help of task cycle. It refers to how much amperage the welder can make at a specified responsibility. Duty cycle is the quantity of minutes out of a 10-minute period a welder can function. Several examples are a TIG welder can carry 200 amps of power at a 60 percent duty cycle. Light TIG welders are rated at 20% function cycle and Industrial TIG welders are rated at 40% to 60% and heavy responsibility products at 60-100 percent’s.
Tig Welding Troubles With Aluminum
Tuesday, March 2nd, 2010The total number of times the AC TIG arc changes in between the electrode negative and electrode positive in one second is known as Frequency or Hz. Take in consideration the Miller’s Dynasty 300 DX inverter-based TIG power source, it always allows to alter the frequency of the power supply from 20 to 250 Hz.
It’s notable that usual TIG machineries have a fixed amount of frequency which is something to that of a 60 Hz of primary power. When the frequency of the power sources is increased, you can find that it trims the shape of the arc cone and boosts up the arc force. Because of this the arc is reduced and stabilized, moreover gives exceptional directional direct on the arc.
On lap and T-joints, by a high frequency gives ways to set up the weld puddle right at the root. Resultantly, we get a good infiltration and moreover the etch zone is also minimized.
Overview of Electroslag Welding
Wednesday, February 17th, 2010Electroslag Welding (ESW) the process of welding is to join two plates or metals by depositing the weld metal in the weld cavity. In order to prevent the running off of molten slag the space is covered with the help water cooled copper dams. Since the depositions rates are very high in Electroslag Welding it is considered most productive welding techniques for joining very thick metals. The process makes the use of direct current to weld the thicker metals and so the need of making an arc is extinguished.
Advantages of Electroslag Welding method include:
- Highly productive in welding techniques
- The cost of making a joint is very low
- The welding process can be carried on a single pass without taking into the consideration the thickness of metals
- During the butt joints there is no angular deformation
- The stress of transverse is very little
- The risk of hydrogen getting cracked is low
- Major repairs can be done in simple techniques by cutting out the weld totally and re - welding it
- The speed of welding joints is 1 hour/ meter of seam, where the thickness of material is not taken into consideration
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