9/30/2019 Welding Technology/4.2 Atomic Hydrogen Welding Welding Hydrogen Atomic Technology/4.2 Welding
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Atomic Hydrogen Welding 9 ❑ Atomic hydrogen welding (AHW) is an arc welding process that makes 9/30/201 use of an arc between two tungsten metal electrodes within an atmosphere composed of hydrogen. Shielding is obtained from the hydrogen.
❑ The electric arc produced in the process efficiently breaks up the molecules of hydrogen that later recombine through an extreme release of
heat. Welding Technology/4.2 Atomic Hydrogen Welding Welding Hydrogen Atomic Technology/4.2 Welding
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Equipment's 9 ❑ 2 tungsten electrode. 9/30/201
❑ Hydrogen gas cylinder with regulator and hose.
❑ Electrode holder or torch.
❑ 300 V AC power supply machine with controller.
❑ Filler rod if needed. Welding Technology/4.2 Atomic Hydrogen Welding Welding Hydrogen Atomic Technology/4.2 Welding
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Atomic Hydrogen Welding
9/30/201 9 Welding Technology/4.2 Atomic Hydrogen Welding Welding Hydrogen Atomic Technology/4.2 Welding
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limitations 9 ❑ Cost of welding by this process is slightly higher than with the other 9/30/201 process.
❑ Welding is limited to flat positions only.
❑ Because of the high levels of heat produced in this welding process, welders need to be even more aware of the dangers they are exposed to.
❑ Skilled welder is required.
❑ Due to advances in inert gases AHW may be limited. Welding Technology/4.2 Atomic Hydrogen Welding Welding Hydrogen Atomic Technology/4.2 Welding ❑ Hydrogen is highly inflammable gas so it should be taken care.
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Applications 9 ❑ Atomic hydrogen welding is used in those applications where rapid 9/30/201 welding is necessary, as for stainless steels and other special alloys.
❑ For most of the ferrous and non ferrous metals.
❑ For thick as well as thin sheets or small diameter wires (2-10mm).
❑ Can be applied almost to any metal, specially in light gauge metal,
special ferrous alloys, and most non ferrous metals and alloys. Welding Technology/4.2 Atomic Hydrogen Welding Welding Hydrogen Atomic Technology/4.2 Welding
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