Arc Welding is further classified as follows: AC Welding; DC Welding – Classified as DCSP/DCRP; TIG Welding – Tungsten Inert Gas Welding; MIG Welding – Metal Inert Gas Welding Therefore, … For other positions, this welding process is not suitable. The temperature of the heat is approximately 4,000°C. It is a type of welding that uses a welding power supply to create an electric arc between a metal stick ("electrode") and the base material to melt the metals at the point of contact.Arc welders can use either direct (DC) or … Recently, automatic AHW has been developed. Hydrogen Embrittlement. This type of welding involves using hydrogen gas to shield two electrodes made of tungsten. • Filler rod may or may not be used during the process. However, it’s still sometimes used for certain purposes, for example, welding tungsten. With the increase in hydrogen content the . Work Measurement. The atoms in the bulb cause an oscillation to build up in the resonant cavity at … The optional Specification contains a specification that describes a specific welding process. • Figure … So, you must require a minimum capital to do the AWH. On this basis, ferritic steel has been considered more susceptible to hydrogen embrittlement than alloys with different crystal structures, such as austenitic stainless steels, nickel alloys and aluminium alloys. Carbon Arc Welding 2. Submerged Arc Welding. Hydrogen detonation parameters, such as critical detonation pressure and Without the equal supply at the ends of the electrode, we cannot carry out this process in the proper way. Arc welding is a welding process that is used to join metal to metal by using electricity to create enough heat to melt metal, and the melted metals when cool result in a binding of the metals. It is generally agreed that hydrogen, in atomic form, will enter and diffuse through a metal surface whether at elevated temperatures or ambient temperature. Plagiarism Prevention 4. Atomic Hydrogen Welding (AHW) is a combination of electric are and gas welding technique. Image Guidelines 5. TOS 7. Reaction 1- Initial reaction starts when acetylene and oxygen mixture burns releasing heat and showing a small white cone. Electroslag Welding Metallurgy, Welding, Notes, Atomic Hydrogen Arc Welding. structure and properties of steel, Shrinkage in welds& Residual stresses, Concept of electrodes, filler rod and fluxes. Atomic Hydrogen Gas Welding; 2. Today we will learn about electron beam welding, principle, working, equipment’s, application, advantages and disadvantages with its diagram. Susceptible grain structure Hydrogen Temperature less than 200oC Stress TWI M.S.Rogers. Before discussing its working we should learn about the principle of electroslag welding machine. Use of hydrogen in arc welding processes 4.1. A.C. is used at the time of welding. Below is the diagram about the AHW process: When the electric arc passes through the hydrogen gas, it dissociates into the atomic hydrogen. The phase diagram of hydrogen is shown below the table. Hydrogen pressure should be adjusted according to the well-shaped arc formed. The atoms recombine when they reach the slightly cooler regions. The average temperature of the flame produced in this process is around 4000º C. This considered as the 3rd hottest flame. Arc Welding Processes 1. The specific crystal structure of metals is important, as it affects the rate at which hydrogen can diffuse and deformation mechanisms. This article provides a study note on atomic hydrogen arc welding. Atomic Hydrogen welding gives you a faster welding process. State whether the statements … It will be appreciated that the transformer is optional and that the generator can be connected directly to the mains. ... Atomic Hydrogen Welding. Underwater Welding Dangers- Most Dangerous…, What is TIG Welding Process or Gas Tungsten Arc Welding (GTAW), Plasma Arc Welding Process- Principle, Main Parts, Working, Advantages and Disadvantages with Application, Underwater Welding Dangers- Most Dangerous Profession in the World, What is Projection Welding – Working Principle, Advantages, Disadvantages and Application, A controller with 300 V power supply. Atomic hydrogen can be prepared by dissociation of a bond of dihydrogen with the help of an electric arc. Flux is usually not required except for aluminium, copper, and their alloys. Ab initio density-functional calculations are performed to study the interaction between a monatomic gold nanowire suspended between two gold tips and hydrogen, in the molecular, quasi-dissociated, dissociated, and atomic forms. Atomic Hydrogen Welding. Proper contact of the workpiece with the arc. Once absorbed, dissolved hydrogen may be present either as atomic or molecular hydrogen or in combined molecular form (e.g., … Gas Welding Show sub menu. Large heat will result in a wide pool. Extracts from this book appear in the article including a stylistic version of an idea for an Atomic Hydrogen Heat Generator. Atomic Hydrogen Welding process is abbreviated as AHW. 4. This process of welding can be done manually or automatically. Thanks for reading this article and let us know in the comments your opinions about it. This can occur during various manufacturing and assembly operations or operational use – anywhere that the metal comes into contact with atomic or molecular hydrogen. 2.3.3 Atomic hydrogen arc welding 12 2.3.4 Tungsten inert gas arc welding (TIG) 13 2.3.5 Gas metal arc welding (GMAW) or Metal inert gas arc welding (MIG) 13 2.3.6 Submerged arc welding 14 2.3.7 Electro-slag welding 14 2.3.8 Plasma arc welding 14 . Inside this article, we will take a brief overview, its pros, cons, features, etc. Great care must be taken that the filler rods do not contact the hot electrodes. However, it’s still sometimes used for certain purposes, for example, welding tungsten. Moreover, hydrogen fire, while being extremely hot, is almost invisible, and thus can lead to accidental burns. This heat … Maintain the proper surface porosity will be very difficult if less heat is present. Austenitic materials are satisfactory at all temperatures and pressures from hydrogen damage. Fig. Your email address will not be published. This article deals with the classification of welding methods, depending on the state of the material during welding: plastic or pressure welding, fusion or … It can be used to create water . Soldering, brazing, gas welding: Soldering, Brazing, Gas Welding: Principle, oxy-Acetylene welding, oxy-hydrogen welding, air-acetylene welding, Gas cutting, powder cutting. This dissociation into the atomic hydrogen happens due to the absorption of a large amount of heat produced in the process. Camera bodies b. FIG. Two sections of theP- T- X surface (T- X andP- X diagrams) are therefore necessary. For carrying out the atomic hydrogen welding process, a skilled labor supply is required. This release a huge amount of energy around 135 kJ/mol and this energy can be used to generate a high temperature of 4000K, which is desirable for welding and cutting of metals. In metal-hydrogen systems, the equilibrium pressure of the hydrogen surrounding the metal is always a significant thermodynamic variable, in contrast to most situations involving metallic alloys. Uphill welding process is a process in which weld joints are made in vertical direction and the plates to be weld held vertically. Arc generation takes place when two electrodes of tungsten are kept in contact with each other. ATOMIC HYDROGEN WELDING (AHW) • Atomic hydrogen welding is a thermo-chemical welding process in which the workpieces are joined by the heat obtained on passing a stream of hydrogen through an electric arc struck between two tungsten electrodes. History. Therefore, to get the required equal supply of heat at both ends, we have to use the AC power supply instead of DC in the AHW process. Tungsten Inert Gas Welding. Oct 19, 2014 - This Pin was discovered by HAC NY. The clamps are so arranged that the electrodes converge at an angle of about 30° to 40°. This article was inspired by William Lyne's book "Occult Ether Physics" where I read about Irving Langmuir's Atomic Hydrogen Arc Welding for the first time. The hydrogen atom is the simplest and lightest of all the elements. This question may come to your mind while thinking about the power supply in the atomic hydrogen welding. It is a type of welding that uses a welding power supply to create an electric arc between a metal stick ("electrode") and the base material to melt the metals at the point of contact. To set up immune POF model, fifty female BALB/c mice were randomly divided into four groups: Control (mice consumed normal water, n = 10), hydrogen (mice consumed hydrogen-rich water, n = 10), model (mice were immunized with zona pellucida glycoprotein 3 [ZP3] and consumed normal water, n = 15), and model-hydrogen (mice were immunized with ZP3 and consumed hydrogen-rich water, n = 15) groups. Metal is transferred through protected arc column to the … Special type of welding: Resistance welding principles, Seam welding, Butt welding, Spot welding and Projection welding. Reactions for oxy-acetylene welding of acetylene m 18 .75 MJ Hydrogen permeation or hydrogen flux permeation usually originates from the atomic hydrogen atoms that are liberated at the cathode during the electrochemical process of corrosion. What is Carbon Arc Welding and How it Works? Flash (butt) welding is an electrical resistance welding processes used for joining components, where the energy transfer is provided primarily by the resistance heat from the parts themselves. Break-even Analysis. The energy of the arc created by the electrodes splits up the molecules of hydrogen into atomic state with the absorption of a large amount … Introduced in the 1930s, the atomic hydrogen welding (AHW) process used hydrogen for shielding. This welding process is mainly used for stainless steel and some special alloys. A stream of hydrogen is passed through an electric arc between two Tungsten electrodes. a. This is a type of deterioration which can be linked to corrosion and corrosion-control processes. Atomic hydrogen or Tungsten arc welding is a fusion process in which an arc is created between two Tungsten (non-consumable) electrodes. Arc welding is a welding process that is used to join metal to metal by using electricity to create enough heat to melt metal, and the melted metals when cool result in a binding of the metals. The process was invented by Irving Langmuir in the course of his studies of atomic hydrogen. AHW is limited to only flat positions. But, as the workpiece is not part of the electric circuit in the AHW, there are no such problems during the entire process. Content Guidelines 2. However, it is apparent that hydrogen can embrittle most … Shielding is obtained from the hydrogen. 3 Oxy-hydrogen welding 4 Pressure gas welding. The shielding atmosphere in the atomic hydrogen welding is consists of the hydrogen. Disclaimer 9. Atomic Hydrogen Welding 8. Pure hydrogen was used as a shielding gas. Without skilled labor, this process cannot be implemented efficiently. This process liberates a large amount of heat.eval(ez_write_tag([[250,250],'theweldingmaster_com-box-4','ezslot_2',164,'0','0']));eval(ez_write_tag([[250,250],'theweldingmaster_com-box-4','ezslot_3',164,'0','1'])); Here, the exothermic reaction takes place during the recombination. ... Atomic Diagram Large Energy Atom Png Html. Around the two tungsten electrodes, an angular nozzle is present which carries the hydrogen gas, Gas cylinders are used for the storage of the required hydrogen gas. A filler rod, when required, should be used as in oxy-acetylene welding. Hydrogen gas leaking into external air may spontaneously ignite. It is also used in the production of hydrochloric acid, widely used in the chemical industries. In ice, each oxygen atom is tetrahedrally surrounded by four hydrogen atoms;. Welding defects- Detection, causes & remedy. Electric cables are connected to the tungsten electrodes. A.C. is used at the time of welding. History of hydrogen in welding: Hydrogen was the first gas used for shielding of an arc welding process. Liquid state welding are those welding processes in which, the metal to … A third possibility is that hydrogen atoms can exist in the steel due to the … 8. The atomic hydrogen process employs a welding torch in ... content in argon are shown in the diagram in Fig. This is often done by melting the workpieces and adding a filler material to form a pool of molten material (the weld pool) that cools to become a strong joint, with pressure sometimes used in conjunction with heat, or by itself, to produce the weld. In case the electrode becomes shorter due to its slow consumption, it should be readjusted. The Oxy-Hydrogen flame burns at up to 2800 degrees Celsius, but the Atomic Hydrogen flame burns at up to 4000 degrees Centigrade. Required fields are marked *. Atomic Hydrogen Welding (AHW). Also, as hydrogen gas passes through the electrodes, electrodes get cooler. The only difference between manual and automatic welding with atomic hydrogen equipment is in the use of the apparatus. Welding is the process of joining two similar metals and it is applicable in most of the field like construction of bridges, huge buildings, railways, roadways, automotive and aircraft construction, pipe lines, tanks and vessels, machinery parts. Name N AWS Characteristics Applications Air acetylene welding (321) AAW Chemical welding process, not popular Limited Oxyacetylene welding: 311: OAW Combustion of acetylene with oxygen produces high-temperature flame, inexpensive equipment Maintenance, repair … Electrosalg welding is an uphill welding process. Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing coalescence. Even interpreting the hydrogen data (including safety data) is confounded by a number of phenomena. Atomic Hydrogen Welding (AHW) Process and Applications. The process experienced a considerable swing mainly before World War II in Germany. 2.3.3 Atomic hydrogen arc welding 12 2.3.4 Tungsten inert gas arc welding (TIG) 13 2.3.5 Gas metal arc welding (GMAW) or Metal inert gas arc welding (MIG) 13 2.3.6 Submerged arc welding 14 2.3.7 Electro-slag welding 14 2.3.8 Plasma arc welding 14 . On the other end of the handle, two tubular clamps are fitted to hold the tungsten electrodes. This is a welding technique of the past and is largely been replaced in the past years by the gas metal arc welding methods. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. Gas and electrical connections are made through this handle. The flow of hydrogen is also connected to the tubular clamps. Discover (and save!) It consists of two tubular current carrying members which conduct both the hydrogen and the current. Hydrogen embrittlement can occur during various manufacturing operations or operational use - anywhere that the metal comes into contact with atomic or molecular hydrogen. It is an arc welding process that uses an electric arc between two tungsten electrodes in the presence of hydrogen. Atomic hydrogen welding is used in the applications where we require fast welding. Advanced Welding Technology Topic: Atomic Hydrogen Arc Welding Ilyas Hussain P2MFG15006 2. definition Atomic hydrogen welding (AHW) is an arc welding process that makes use of an arc between two tungsten metal electrodes within an atmosphere composed of hydrogen. reaches a temperature up to 4000°C.This procedure is called . It was built in 1973 and is one of the very last machines Miller built having stopped taking orders for delivery of such machines on 07-01-73. Answer Explanation Related Ques: ANSWER: Electric insulation. Arc Welding Process: By using electric arc, if the heat required for melting of plates is obtained called as Arc Welding Operation. Electron beam welding is a liquid state welding process. • The arc supplies the energy for a chemical reaction to take place. And thus the heat liberated is used to fuse the metal to be welded. Inspection methods: Methods used for inspection of casting and welding. In thisntype of welding a metal rod is used as one electrode, while the work being welded is used as another electrode. But the use of hydrogen in the arc welding process was not known to everyone. These two electrodes are inclined to each other. If the supply voltage is steady the result will be that the arc current . Atomic hydrogen or Tungsten arc welding is a fusion process in which an arc is created between two Tungsten (non-consumable) electrodes. A stream of hydrogen is passed through an electric arc between two Tungsten electrodes. Movable clamps are connected to the start and stop button through which electrodes are brought together and separates the electrode. It can reach temperatures above an acetylene torch and it can be done with or without filler metal. In this process, we have to maintain an equal supply of heat at both ends of the electrode. The molten metal is protected by gaseous oxides and nitrides with the gaseous shield so it is termed as … One was written in the 1930s to 1950s, while the other was published about 1980. Hydrogen is not toxic but is a simple asphyxiate by the displacement of oxygen in the air. The filler rod should be of same composition as the base metal, except that it should consist 30% more carbon. Plasma Arc Welding 7. 17) Which of the following is an example of thermoplastic material? My warm thanks to William Lyne for bringing this work out to the public eye. In the Nelson diagram, boundaries are placed in a temperature/hydrogen partial pressure graph, which delineates the region of safe use for carbon steels, 1.25Cr-0.5Mo steels, etc. This is an older form of welding that has been replaced … It is also a non-metal.. … It is an arc welding process that uses an electric arc between two tungsten electrodes in the presence of hydrogen. Therefore, atomic hydrogen or oxy-hydrogen torch are used for welding purpose. TIG welding stands for tungsten inert gas arc welding, from American welding society … Atomic properties of hydrogen. Hydrogen gas is used to reduce many metallic minerals. Later, Nobel prize winner Irving Langmuir invented AHW while he was studying atomic hydrogen. Oxyfuel welding 1.3 Atomic hydrogen welding 0.8 Spot welding 0.4 Stub welding 0.2 TABLE 2-2. This type of welding involves using hydrogen gas to shield two electrodes made of tungsten. Content Filtrations 6. Any oxygen present in the surrounding combines with hydrogen forming water—which is immediately converted into steam. It produced higher welding temperatures than any of the welding processes available at the time. If the fusions process takes a long time then, it is the sign of having too little heat. The introduction of hydrogen during welding process allows hydrogen to be present at some threshold level to promote cracking. Its process and structure are similar to that of arc welding as it is a sub-type of arc welding. It’s a material that is very resistant to heat and this technique allows to weld the metal without damaging it, while at the same time creating a strong weld. Later, these hydrogen molecules recombine and release a tremendous amount of heat. Atomic hydrogen welding (AHW) is an arc welding process that uses an arc between two tungsten electrodes in a shielding atmosphere of hydrogen. Pre-determined Motion Time System (PMTS) Micromotion Study. Atomic hydrogen welding An a.c. arc is formed between two tungsten electrodes along which streams of hydrogen are fed to the welding zone. This diagram has been updated a number of times by the American Petroleum Institute (API) and published in the API recommended practice 941. Mar 2, 2017 - SteelConstruction.info - The free encyclopedia for UK steel construction, covering steel design, Eurocodes, steelwork costs, thermal mass, fire engineering, embodied carbon, life cycle assessment and much more Hydrogen gas is supplied from the cylinder. 18) Which of the following characteristics does not affect … ... Schematic Diagram Of Inverter Welding Machine. The less distortion is due to the very intense flame. Atomic Hydrogen Welding Another form of arc welding, which has originated in America, is called AtomiC within about one sixteenth of an inch of the work piece. It is also possible that the atomic hydrogen atoms may exist due to a chemical reaction inside the vessel or pipe unrelated to corrosion processes. Item No. Report a Violation, Atomic Arc Welding (With Diagram) | Metallurgy. TIG Welding. The heat of the arc … I first learned about this in a couple of old Chemistry textbooks I acquired. Atomic Hydrogen Welding. Hydrogen H 2 - - 10 2390 Natural gas CH 4 +H 2 0.41 36.59 37 2350 In oxy fuel gas -welding processes, the combustion takes place in two stages. The 1940-ish book took up maybe three pages on Atomic Hydrogen, half of it describing the torch. This enables the operator to establish and maintain the desired arc length. Draw an atom diagram diagram of a hydrogen atom the simplest atomic model nickel atom copper zinc gallium chemistry atom diagrams beryllium. Submerged Arc Welding 4. It has a Buds Atomic Torch head from Buds Welding in Ft. Worth Texas. Copyright 10. What is Underwater Welding and How it works? We can use the oxyhydrogen torch instead of electric arc but in that case, we can reach temperature only up to 2800 º C. The equipment involved in the AHW contains a welding torch with two tungsten electrodes. It was in 1926 that a gas-shielded arc welding process was developed. will increase due to the reduced resistance of the arc ; more metal will be melted and a greater quantity of metallic vapour produced, which -will still further increase the arc … two by covalent bonds and two by hydrogen bonds. Structural configurations, electronic states, vibrational modes, and electronic transport are investigated for several elongation stages of the wire, … 5 is a schematic diagram of the torch operation, ... Another winding is used for arc welding or can be used to supply an arc for atomic oxy-hydrogen welding. String Diagram. The components are positioned end-to-end across the full joint area. A proper arc gap should be maintained. A faster welding process is always beneficial for welders and it also saves time. As shown in Fig. Heat supplied must not be too large or too little. We have been familiar with the arc welding process for many years. Description Page No. It is a thermo-chemical arc welding process in which the workpieces are joined by heat obtained on passing a stream of hydrogen through an electric are struck between two tungsten electrodes. Metal Inert Gas. So, let us take a close look at this welding technique. your own Pins on Pinterest Molecular orbital diagram for hydrogen: For a diatomic molecule, an MO diagram effectively shows the energetics of the bond between the two atoms, whose AO unbonded energies are shown on the sides. 7. This recombination takes place as the atomic hydrogen touches the cold workpiece. The temperature of about 6500 degree F is generated in this method. The shielding atmosphere in the atomic hydrogen welding is consists of the hydrogen. It must not be too large or too small. Atomic Hydrogen Welding (AHW) This is an older Arc welding process which is slowly being replaced by gas metal arc welding (see above). Hydrogen was recognized as a distinct substance by Henry Cavendish in 1776. 2. Atomic Hydrogen Welding process is abbreviated as AHW. One of the most common damage caused by absorption of atomic hydrogen in metals is known as HIC-hydrogen induced cracking or HE-hydrogen embrittlement. Two sections of the P- T- X surface ( T- X and P- X diagrams) are therefore necessary. This intense flame produced can be concentrated at a particular joint. It can also be used for almost all the ferrous as well as non-ferrous metals. It consists purely of power control unit, equipment arc, electrode holder, stop-start buttons, a source of hydrogen, gas hose-pipe, electric cable and a gas regulator which is attached to the cylinder of hydrogen. But have you ever heard about the atomic hydrogen welding (AHW).? Explanation: No explanation is available for this question! AHW is a Thermo-chemical arc welding process where multiple workpieces can be joined together through the use of heat. This is the third-hottest flame after dicyan… Transformers of movable primary coil are used for regulation with an open circuit voltage of about 300 volts and stepping down to maintain the arc to 70-90 volts. Well, this welding process is one of the types of arc welding processes. Also, they are adjusted in such a way that they will maintain a stable arc. To condense the molecule to a denser liquid, the temperature must be reduced to 20.3 K. When hydrogen is released, it disperses rapidly. This type of welding requires using hydrogen gas to shield two electrodes formed of tungsten. In the atomic hydrogen welding, electric arc and hydrogen play a crucial role. Carbon Arc Welding. 3: Block Diagram . Wage Incentive Plans. Friction welding, Explosive welding, Thermit welding, Laser welding and electron beam welding. This welding is done both in single pass and multipass. In general, the primary coil is connected to the power supply through a fused switch and the secondary coil is connected to the welding circuit through a magnetic contactor which opens when the arc is broken—thus eliminating electrical hazards (Fig. The electrode holder is the means of setting up an arc. 16.1, the extension of the electrode should be according to the welding process and nature of equipment’s. One clamp is fixed. WELDING AND GAS METAL ARC ... Gas tungsten arc welding Atomic hydrogen welding Plasma arc welding Oxyacetylene welding Oxyfuel gas welding Laser beam welding Thermit ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 4153b5-YWRlY Hydrogen gas works as a shielding gas and prevents the oxidation of metals as well as of the tungsten electrode. In metal-hydrogen systems, the equilibrium pressure of the hydrogen surrounding the metal is always a significant thermodynamic variable, in contrast to most situations involving metallic alloys. Structure : The resultant dipole moment of water molecule is 1.84D. on chart) with little concern for hydrogen attack. Gas Tungsten Arc Welding 5. The unbonded energy levels are higher than those of the bound molecule, which is the energetically-favored configuration. Skema Mesin Tv Wcom 29 Inch. The bottom of the fan-shaped arc is brought over the metal to be fused. Diagram of a simple hydrogen atom. What makes this process so unique is that it is a combination of both gas and electric welding techniques that are used. Atomic Hydrogen Welding. This is because helium is an inert gas that will not undergo chemical reactions. 10. In automatic welding, the entire welding operation is controlled by machinery, while in semiautomatic welding the control is shared by machinery and the operator. 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Metallurgy, welding, Thermit welding, Spot welding and How it Works surface ( X... Resulting structure of ice is open structure having a number of phenomena almost invisible, and.. … this article provides a study note on atomic hydrogen ( atomic arc welding is of... And stop button, so that the Generator can be performed with or without a filler metal atomic molecular... Of an idea for an atomic hydrogen welding ( AHW )., Thermit welding, welding. The mains to take place hydrogen ( atomic arc ) flame that of the electrode, while the being! From thin sheets to thicker atomic hydrogen welding diagram may come to your mind while thinking about the power supply required! Energy levels are higher than that of the past years by the gas metal arc welding AHW weld... Taken that the electrodes means of setting up an arc is available for this question displacement of in. The so-called atomic-hydrogen process or arc-atom in short very difficult if less heat liberated. 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Into external air may spontaneously ignite means of setting up an arc welding where..., but it has a very high thermal conductivity and gas welding by four hydrogen atoms or from elements. Was the first gas used for shielding of an idea for an atomic hydrogen welding ( AHW process! Thermo-Chemical arc welding ( AHW ) is a process in the AHW,... Except for aluminium, copper, and their alloys accidental burns and their alloys was not to! Together and separates the electrode holder is the most common damage caused by absorption of atomic hydrogen arc welding is! In its atomic atomic hydrogen welding diagram, is almost invisible, and thus the heat required for melting of plates obtained... Available at the ends of the tungsten electrode you ever heard about the atomic hydrogen welding 149! A wider range of temperatures due to the … atomic hydrogen welding is consists of the arc brought! Atoms or from other elements that were originally made from hydrogen atoms or from elements. Atomic or molecular hydrogen beyond the zone of recombination burns, generating more heat way an arc. Explanation Related Ques: ANSWER: electric insulation an electric arc breaks the molecules of hydrogen include acid and.