Here you are going to find all kinds of information whether you are into mig, tig, or stick welding. It contains a wire electrode and a shielding gas supply. It is a process developed in the 1940s, and is considered semiautomated. In mig welding the arc is placed between the tip of the wire at the same time when it appears from the torch. Both of these welding processes are easy to learn, and the welding processes can be done on most of the common materials. The weld is shielded by an inert gas, co2, to prevent oxidation. In the mig welding process, an electric arc is produced between consumable wire electrodes and workpiece metals. Tig welding method and application tig welding definition the designation tig comes from usa and is an abbreviation of tungsten inert gas. Introduction to practical application of wire feed welding mig welding. Gas tungsten arc welding gtaw, also known as tungsten inert gas tig welding, is an arc welding process that uses a nonconsumable tungsten electrode to produce the weld. The major difference between mig and tig welding is that one process uses a continuously feeding wire mig and the other you use long. Faster than regular steel mig welding, due to the higher. Difference between mig and tig welding compare the.
What separates tig welding from most other welding processes is the way the arc is created and how the. Compare and choose if the mig or tig welding procedure is the best for your metal products. Mig welding equipment the basic mig welding equipment consists of the following components. While tig is a bit slower than mig, it is by far the most versatile welding processes as it can be used to weld almost any material in a variety of positions. Gas metal arc welding tig and mig all engineering material except zinc can be welded using gas metal arc welding process the thickness of the plates ranges from 1 mm to 6 mm. It affords greater control and improves weld quality by using a nozzle to focus the electric arc, but is largely limited to automated systems. What is tig welding process or gas tungsten arc welding gtaw. Welding is the joining of metals at a molecular level. Tig welding is a commonly used high quality welding process. Metal inert gas mig welding is the process of making a weld with a wire electrode and a workpiece metal. The piece of metal to be joined are heated to plastic. Welding experiments were carried out on 316l grade stainless steel with sulphur content less than 0. Mig and tig welding are both types of arc welding that use inert gas.
There are more than thirty different types of welding. Welding occurs in several locations, from outdoors settings on rural farms and construction sites to inside locations, such as factories and job shops. Tig welding is the international standardised designation for this welding method. Apr 24, 2020 tig welding gtaw or gas tungsten is an arc welding process that operates at high temperatures over 6,000 degrees fahrenheit to melt and heat metals. As with the other gas shielded processes, drafts can blow away the shielding gas, which limits the. In the tig welding process or gas tungsten arc welding, the welding torch is connected to a constant current welding power supply and shielding gas source. This means that the welder still requires skill, but that the mig welding machine will continuously keep filling the joint being welded and electrodes do not need to be changed out between welds. The filler metal as a rod is applied manually by the welder into the. Obviously, i cant cover everything, but even if you get 1% smarter after reading this blog its a win. Both of these welding processes use an electric arc during the weld. Optimization of mig welding process parameters for. Gas tungsten arc welding gtaw or tig ppt presentation summary. Mig welding metal inert gas welding mig is a process in which a consumable wire electrode is fed into an arc and weld pool at a steady but adjustable rate, while a continuous envelope of inert gas flows out around the wire and shields the weld from contamination by the atmosphere.
Gmaw mig welding basic equipment setup and welding procedures gas metal arc welding is a process where a continuously fed metal electrode wire contacts. The tig process itself is the same for all types of welding. Shielding gas protects the weld from atmospheric contamination. We manufacture a full line of products for welding schools, light to heavy duty metal fabricators, maintenance shops, home use and more. Tig is a process that gets the heat needed for welding from an electric arc that occurs between the part to be welded and a nonconsumable tungsten electrode.
Difference between tig welding and mig welding in hindi. The metal inert gas mig or metal active gas mag welding is a semiautomated process, widely used in many sectors of industry, such as shipbuilding, railroad construction and the production of heavy plants and machinery. Paper presented at 15th international conference on the joining of materials jom 15 and 6th international conference on education in. Difference between mig and tig welding the welding master. Jared mccombs and vinnie diblasi overview mig metal inert gas welding an arc is struck between an electrode and the sheet metal to be welded. Gtaw gas tungsten arc welding this process was perfected in 1941, and became known as heliarc or tungsten inert gas welding. In tig welding an arc is formed between a non consumable tungsten.
The aws reference codes of the american welding society are commonly used in north america. These are widely use for joining a verity of shapes and material. Ppt tig welding introduction powerpoint presentation free. What is mig welding process or gmaw gas metal arc welding. Guidelines for welding process selection me mechanical. The piece of metal to be joined are heated to plastic state and.
View and download powerpoint presentations on mig welding ppt. Gas shielded arc welding processes tigmigmag openlearn. The various equipment that is used in gmaw or mig welding process are. Introduction to welding technology transfer services. A free powerpoint ppt presentation displayed as a flash slide show on id.
Tungsten inert gas welding tig background what is tig. Tig weldinggas tungsten arc welding gas tungsten arc welding is an arc welding process that uses a nonconsumable tungsten electrode and. Gmaw mig welding basic equipment setup and welding procedures gas ppt. Tig welding how to tig weld, process overview and machine setup. Tig welding has become a popular choice of welding processes when high quality, precision welding is required. The electrode used in the machine shop is copper wire and is in the form of continuous filler metal. Tig hot and cold wire welding dynamic wire feed system. This is a list of welding processes, separated into their respective categories. Mig metal inert gas or gas metal arc welding gmaw, is a welding process in which a consumable metal electrode is used to produce the electric arc to join the metal pieces together in the environment of a shielding gas. Mig metal inert gas welding, also known as mag metal active gas and in the usa as gmaw gas metal arc welding, is a welding process that is now widely used for welding a variety of materials, ferrous and non ferrous. If a filler metal is needed, it is fed into the weld puddle. Optimization of mig welding process parameters for improving.
Feb 20, 2014 welding is a common process for joining metals using a large variety of applications. The weld area and electrode is protected from oxidation or other atmospheric contamination by an inert shielding gas argon or helium, and a filler metal is normally used, though some welds, known as autogenous welds, do. The difference between tig and mig welding slideshare. Tig welding tig welding gas tungsten arc welding gtaw is frequently referred to as tig welding. Mig also called gmaw is a process where metals are welded by heating them with an arc between the part. Tig welding is a manual welding process that requires the welder to use two hands to weld. Whereas a mig welder may burn through a thinner piece of metal like a kitchen sink or a thin pipe.
The principle of tig welding tig welding is an electric arc welding process in which the fusion energy is produced by an electric arc burning between the workpiece and the tungsten electrode. Tungsten inert gas also referred to as gtaw gas shielded tungsten welding in tig welding, a tungsten electrode heats the metal you are welding and gas most typically argon protects the weld from airborne contaminants background tig welding uses a nonconsumable tungsten filler metal, when required, is added by. Investigation of the atig mechanism and the productivity benefits in tig welding. What separates tig welding from most other welding processes is the way the arc is created and how the filler metal is added. Find powerpoint presentations and slides using the power of, find free presentations research about mig welding ppt. Due to tig welding being able to perform at lower power, it is common to utilize the tig welding process on more delicate metals. Tig welding tungsten inert gas or heliarc seperates the heat source from the filler material. A mig welder and a tig welder can be used during welding, which is the process involving the fusing together of metals by melting the metal where they meet and will be joined. The tig process uses the heat generated by an electric arc between the metals to be joined and an infusible tungstenbased electrode, located in the welding torch. As with the other gas shielded processes, drafts can blow away the shielding gas, which limits the outdoor use of the process. Objective of this investigation was to compare the weld penetration depths produced by conventional tig welding process and a tig welding process in a low sulphur containing stainless steel plate. Difference between mig welding and tig welding tig vs mig anuniverse 22. Kgk murti3, vvsh prasad 1,2assistant professor, 3,4professors, department of mechanical engineering, institute of aeronautical engineering, dundigal, hyderabad. In tig welding process, tig stands for tungsten inert gas.
It may seem a little daunting to learn a new skill or start out as a beginner, but once you start getting things, it. Different types of welding processes from tig to laser 2020. Apr 16, 2019 in pulse mig welding, the current is also varied. Optimization of mig welding process parameters for improving welding strength of steel c. Nov 20, 2015 schematic representation of mig welding process. Numbers in parentheses are obsolete and were removed from the current 1998 version of iso 4063.
According to dsen 24063 this welding process has number 141. The tigspeed systems are available in cold wire and hot wire versions with both manual and automated operation. Each one of these has its own benefits and drawbacks and you must have adequate. Tig welding process is applied to all nonferrous and alloy steel welding and also for root pas in pipe welding. Tig welding allows the operator greater control over mig welding. The major difference between mig and tig welding is that one process uses a continuously feeding wire mig and the other you use long welding rods and slowly. While it is more expensive than stick welding, it is cleaner and more versatile works on steel, aluminum, brass and many other metals. Pressure welding of noble metals over 2,000 years ago forge welding blacksmiths over 1,000 years ago modern welding 1880s. Tig welding introduction by daniel min outline background advantages and disadvantages safety preparation for tig welding techniques for basic weld joints tig. When tig welding one hand is used for holding the tig torch that produces the arc and the other hand is to add the filler metal to the weld joint. The welding process is especially stable with a simultaneously high deposition rate. The term mig is stand for metal inert gas welding and tig is stand for tungsten inert gas welding. Welding is a common process for joining metals using a large variety of applications.
Tig is also known as gas tungsten arc welding gtaw. With the ability to join metals like aluminum, titanium, stainless steel and other exotic alloys, it is ideal for auto repair, construction, and metal art. It is constant voltage power source whose one terminal is connected with the welding gun and the other is connected to the workpiece. What separates tig welding from most other welding processe s is the way the arc is created and how the filler metal is added. Mig welding how to mig weld, process overview and machine. Tungsten inert gas welding tig is an arc welding process, which uses a non consumable tungsten electrode, shrouded by a protective.
Tig welding requires more practice than the mig welding, because of the complexity and the tighter tolerances to be maintained, while the mig welding is much more user friendly. Ppt tig welding information and the process of tig welding. Mig welding metal inert gas supplies power to wire fed through the center of gas cone, heat and filler are the same. It may seem a little daunting to learn a new skill or start out as a beginner, but once you start getting things, it will all be worth it. The weld area and electrode is protected from oxidation or other atmospheric contamination by an inert shielding gas argon or helium, and a filler metal is normally. The associated n reference numbers second column are specified in iso 4063 in the european union published as en iso 4063.
Welding processes are fairly simple to understand, and basic techniques can be learned quickly. Tig welding is one of the most common welding processes. The atig mechanism and productivity benefits in tig welding. Explore welding quizzes and presentations from miller, covering topics like mig, tig and stick welding, basic electricity and filler metal selection. Mig welding is a very useful and efficient welding process. The arc area is shrouded in an inert or reducing gas shield to protect the weld pool and the tungsten electrode.
Feb 11, 2017 tig welding is a manual welding process that requires the welder to use two hands to weld. What is tig welding process or gas tungsten arc welding. Welding procedure specifications wps presented by john lucas welding engineer uti corporation. Constant voltage, direct current power source is used to. Tig welders are the basic need for such type of welding process that uses a. The mig welding process replaced the stick welding method. Pulse welding is a variation on two core processes commonly taught in a welding training program. Relatively it is easier to learn and weld using mig than learning how to tig. Tig welding and metal size with the exception of magnesium and aluminum, the tig process should not used with metals over. The continuous wire feeding is superimposed by backwardsforwards motion of the wire. This greater control is not to imply that tig is the superior welding method, as both methods offer similar ultimate tensile strengths as the original weld metal, assuming there are no weld defects in either process. It relies on directing quick, highcurrent pulses at the work. Tungsten inert gas, tig and metal inert gas, mig are two types of arc welding services which use inert gas and metal electrodes as the shielding from oxidations during very high temperatures.
How to compare and choose between mig and tig welding. V kumar a, bill lucas a, d howse a, g melton a, s raghunathan a and louriel vilarinho b. When tig welding one hand is used for holding the tig torch that produces the arc and the other hand is to add the filler metal. They range from outdated but still used oxyfuel to hightech methods such as laser beam welding. Tig welding gtaw or gas tungsten is an arc welding process that operates at high temperatures over 6,000 degrees fahrenheit to melt and heat metals. Today we will discuss difference between mig and tig welding. The technique was first introduced to improve the control over metal transfer when using currents at low average levels. Power source welding gun gas cylinders with pressurereducing valve and flow meter wire feeder unit the basic circuit and the equipment of mig welding is shown below, 6. With the help of the constant current supply, the electric arc is produced between the electrode and two metal workpieces which are to be joined. Mig welding is used for nonferrous alloys but can be used for steel welding, whereas tig welding can be used for any metal.
Tungsten also called wolfram is a metal with a fusion point of more than 3300oc, which means more than double the fusion point of the metals which are usually welded. What is the difference between a mig weld and a tig weld. The essential feature of the process is the small diameter electrode wire, which is fed continuously into the arc from a coil. Metals under 316 of an inch may not need edge prep. Friction stir welding fsw is a process in which the welds are prepared with the help of a tool having a profiled pin. Generally, it uses filler metal but in some autogenous weld, it does not require it. In 1953, a new process based on gtaw was developed, called plasma arc welding. Welding process gmaw mig, gtaw tig, smaw stick automated or not. Important information process parameters volts, amps, travel speed travel direction. Tig welding works effectively at lower power and can fuse the thinner metal without blowing through it. Mig metal inert gas mag metal active gas co2 carbon dioxide a low voltage 18. Welding is a process of permanent joining two materials usually metals through localized coalescence resulting from a suitable combination of temperature, pressure and metallurgical conditions welding is commonly classified in following types pressure welding.
Mig welding is an abbreviation for metal inert gas welding. It is achieved by causing two oppositely charged metals or metals with a high potential difference to come into contact, creating massive amounts of heat as arcing occurs. It is a process that uses a nonconsumable tungsten electrode to form the weld. However, there are only four basic welding processes they are mig, tig, stick and fluxcored arc welding. Tungsten inert gas welding tig is an arc welding process, which uses a nonconsumable tungsten electrode, shrouded by a protective. Welding current is normally controlled by either a moving core in the main transformer or by. Air products welders handbook migmag welding principles gas shielded metal arc welding is a semiautomatic process which is suitable for both manual and mechanised operation. Sep 10, 2012 mig welding is used for nonferrous alloys but can be used for steel welding, whereas tig welding can be used for any metal. An electric arc powered by an electric arc generator forms between the wire and the metal to heat both components to the point of melting. Ppt methods of aluminum welding powerpoint presentation.
Ppt tig welding introduction powerpoint presentation. Arc welding is the process of welding metals using heat generated by electricity. It provides continuous wire feed metal electrode during welding operation. Oerlikon can provide a wide range of migmag welding inverter and step controlled power sources citowave, citosteel. Metals that have a thickness over 316 of an inch require machined or ground edges to help bead.