Heating to extreme temperatures (or chilling) will harden or soften metal. The process may alter the physical, and sometimes chemical, properties of the metal. Heat treatment is also done to glass and other materials, but we'll focus on metal today. Heat treatment techniques include annealing,
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Atomic hydrogen welding, also known as AHW, is an arc welding technique that uses an arc which is located between two tungsten electrodes and a hydrogen shielding gas. This welding technique was discovered by Irving Langmuir while he was studying atomic hydrogen. The electric arc
Ultrasonic welding is an industrial welding process that uses high-frequency ultrasonic acoustic vibrations which are locally applied to the pieces being joined. The pieces that are being welded together are typically held in place using pressure which creates a solid state weld. This welding technique
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Flux-cored arc welding, also known as FCAW or FCA, is a semi-automatic or automatic arc welding technique. Flux-cored arc welding requires the use of a tubular electrode which contains a flux to be continuously fed using a constant voltage of constant current welding power supply.
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Orbital welding is a process that was invented over fifty years ago. It is a specialized area of welding where the welding arc is mechanically rotated around a static work piece continuously. This welding technique is used on items that would be very difficult to
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In a recent interview with IMPO Magazine, Ray Shook, Executive Director of the American Welding Society, described a number of technological innovations in welding that have been the most revolutionary in the past several years and the future technology that will be utilized in the