Can TIG welding be learned? How long does TIG welding take?

Of course, you can learn, it is recommended to go to a formal welding training school, the teacher teaches by hand, the amount of training is large, the hardware facilities are complete, the environment is good, and the employment is guaranteed. Hope, thank you!

OK. TIG welding is a welding technology that uses argon as a shielding gas. It is also known as argon gas shielded welding. It is to pass argon shielding gas around the arc welding to isolate the air from the welding area and prevent oxidation in the welding area.

Argon arc welding technology is based on the principle of ordinary arc welding, the use of argon to protect the metal welding consumables, through high current to make the welding consumables melt into a liquid state on the welded substrate to form a molten pool, so that the welded metal and the welding consumables to achieve metallurgical combination of a welding technology, because of the continuous delivery of argon in the high temperature melt welding, so that the welding consumables can not contact with the oxygen in the air, thereby preventing the oxidation of the welding consumables, so that stainless steel, iron hardware metals can be welded.

I hope I can help you with your doubts.

Welding, no shortcuts. Learning TIG welding is no exception.

Without a certain theoretical basis, blind welding, it is difficult for technology to progress rapidly. Different metal materials, different thicknesses, different weld positions, the parameters used are very different, whether it is argon arc welding, or two protection welding, electrode hand arc welding, submerged arc welding, electroslag welding, gas welding, gas cutting, diagram cutting, etc.

Coupled with hard work, it may be just the only shortcut.

It's easy to learn and easy to learn, but take care to protect your eyes.

Yes, it would be nice to find a professional school to study.

So first of all, how long do I think it takes to learn sub-arc welding?

No one can help you learn the craft for a long time, and some people have a good understanding and can master the skills in ten days and half a month. Some people may work for ten or eight years and still not grow like that. As for what is considered a good scholarship, I really don't agree with this standard, and someone may spot weld.

Shoes, anti-theft windows, staircase handrails or something, someone has done the pressure pipe, and they still want to do the aircraft carrier, the space shuttle, that is, how big your heart is, how big your dream is. Today is just for you from the grassroots, I have run the pressure pipe.

So first of all, I think that Yahoo welding should be no stranger to manual welding, although the current Yahoo welding has been very professional and advanced, but it will also be an upgraded version on the basis of manual welding. Yahoo welding is a kind of argon shielded welding, which uses a black rod as an electrode, and one end of the welded workpiece is the other pole, through high frequency or other contact type. Arc initiation method: The guy starts the arc and uses the heat energy of the arc discharge to melt the bow and arrow.

By adding no welding wire to ten years of bow and arrow fusion together a welding method, the discrimination and the tools include a curing welding machine, a medicine bottle, an oxygen decompression gauge, an air source tube, an argon arc welding torch mask The operation of sub-arc welding needs to be completed through the coordination of both hands, that is, one hand holds the gun to fire undulations, observes the condition of the weld pool through the mask, and holds the welding wire in the other hand to evenly melt the welding wire. Still holding on to the tall buildings to learn from the ground! First of all, you have to learn to send a welding wire, the length of the welding wire is about 1m, the left hand is also with the right hand, here is not a left-handed example, only Hans a section of the welding wire evenly sent to the end, do not pause in the middle, followed by the control of the molten iron pool, the requirement is in the molten iron.

It is necessary to draw the control strength of nothing and increase the welding wire in time to walk evenly, keep the running smooth, the beauty of the weld and so on. The basic skills must be solid.

The learning time of TIG welding varies from person to person, and it is generally about a month when you are younger and have better comprehension ability. If you are more demanding, or older, you will have a longer study time.

Novices can first learn the basic methods of argon arc welding, let experienced masters teach them by hand, or they can query information online for self-study, and then practice on the spot.

Learn the basic methods of TIG welding:

1. Wire feeding: divided into internal and external wire filling. The outer filler wire can be used for priming and filling, which is to use a larger current, the welding wire head is on the front of the groove, the left hand pinched the welding wire, and constantly sent to the molten pool for welding, and the groove gap is required to be small or no gap.

The advantages are that the current is large and the gap is small, so the production efficiency is high, and the operation skills are easy to master. The disadvantage is that if it is used for priming, the operator cannot see the blunt edge melting and the reverse side residual height, so it is easy to produce unfused and undesirable reverse forming.

2. Welding handle: divided into crank and mop. The crank is to press the nozzle slightly on the weld, and shake the arm sharply to weld.

Its advantage is that the welding nozzle is pressed on the weld, and the welding handle is very stable in the operation process, so the weld is well protected, the appearance is very beautiful, the product qualification rate is high, especially the welding is very convenient, and the color of the very beautiful appearance can be obtained when welding stainless steel. The disadvantage is that it is difficult to learn, and because the arm shakes widely, it is impossible to weld where there are obstacles.

3. Arc initiation: arc initiation device (high-frequency oscillator or high-frequency pulse generator) is generally used, tungsten electrode and weldment do not contact to ignite the arc, contact arc initiation is used when there is no arc initiator (mostly used for construction site installation, especially high-altitude installation), copper or graphite can be placed on the weldment groove to ignite the arc, but this method is more troublesome, less used, generally with a slight stroke of the welding wire, so that the weldment and tungsten electrode are directly short-circuited and quickly disconnected and ignited the arc. The maximum current that a welder can output when welding an arc.

Each time the arc starts, the given voltage is increased for a short time, so that the arc current is larger and the arc is easy to start.

4. Welding: After the arc is ignited, it should be preheated at the place where the weldment starts for 3-5 seconds, and the wire feeding will start after the molten pool is formed. When welding, the angle of the welding wire and the welding gun should be appropriate, and the welding wire should be fed evenly.

The welding torch should move forward smoothly, swing left and right, be slightly slower on both sides and slightly faster in the middle. Pay close attention to the changes in the molten pool, when the molten pool becomes larger, the weld becomes wider or the concave appears, the welding speed should be increased or the welding current should be re-adjusted.

5. Arc retraction: If the direct arc retraction is easy to produce shrinkage holes, if it is a welding torch with an arc initiator, the arc should be intermittently retracted or adjusted to the appropriate arc retraction current to slow arc retraction, if there is no arc reducer welding machine, the arc will be slowly led to the side of the groove, do not produce shrinkage holes, such as shrinkage holes should be polished clean before welding. If the arc is at the joint, the joint should be polished into a bevel first, and then welded forward 10-20mm after the joint is fully melted, and then slowly close the arc, so as not to produce shrinkage holes.

It takes a month to learn TIG welding.

To learn TIG welding, you need to go to a professional training school to learn. Generally, the school starts from scratch, and will provide all the equipment and consumables needed, and practice argon arc welding technology every day.

Argon arc welding technology is a welding technology based on the principle of ordinary arc welding, using argon to protect metal welding consumables, and melting the welding consumables into a liquid state on the welded substrate to form a molten pool through high current, so that the welded metal and welding consumables can achieve metallurgical combination.

Classification of argon dry arc welding:

Non-melting electrode: The working principle and characteristics of non-melting electrode argon arc welding is that the arc burns between the non-melting electrode and the workpiece, and an inert gas that does not react with the metal flows around the welding arc to form a protective gas hood, so that the tungsten terminal, the arc and the melt pool and the high-temperature metal adjacent to the heat-affected zone are not in contact with the air, which can prevent oxidation and absorb harmful gases. The result is a dense welded joint with very good mechanical properties.

Melting electrode: The working principle and characteristics are that the welding wire is fed through the wire wheel, and the contact tip conducts electricity, which generates an arc between the base metal and the welding wire, melts the welding wire and the base metal, and uses inert gas argon to protect the arc and molten metal for welding. <>

Argon must be used for argon arc welding. TIG welding is to pass argon shielding gas around the arc welding to isolate the air from the welding area and prevent oxidation in the welding area.

The welding wire is fed through the wire wheel, and the contact tip conducts electricity, which generates an arc between the base metal and the welding wire, melts the welding wire and the base metal, and uses inert gas argon to protect the arc and molten metal for welding.

The difference between it and tungsten TIG welding:

One is that the welding wire is used as an electrode, and it is continuously melted and filled into the molten pool, and the weld is formed after condensation;

The other is the use of shielding gas, with the application of MIGG welding technology, shielding gas has developed from a single argon gas to a variety of mixed gases for a wide range of applications.

For example, when argon or helium is used as shielding gas, it is called MIG arc welding (referred to as MIG welding in the world), and it is collectively referred to as MIG welding (referred to as MAG welding in the world).

From the perspective of its operation mode, the most widely used at present is semi-automatic melting pole argon arc welding and argon-rich mixed gas shielded welding, followed by automatic melting pole argon arc welding.