About: Hyperbaric welding is a research topic. Over the lifetime, 72 publications have been published within this topic receiving 265 citations. The topic is also known as: underwater welding & wet welding.
TL;DR: An arc welding torch accessory providing automatic material feed to an existing TIG torch, which has user adjustable wire feed speed without discontinuing use of the device, is described in this article.
Abstract: An arc welding torch accessory providing automatic material feed to an existing TIG torch, which has user adjustable wire feed speed without discontinuing use of the device. The welding torch device is employed in gas delivery arc welding devices which use hyperbaric welding techniques to evacuate air or oxygen from the weld area while the weld is being processed. The disclosure describes a system for adopting an automatic wire feed system to an existing TIG welding torch head. The device allows automatic delivery of wire material, commonly fed by hand in arc welding, by presenting the wire to be fed automatically while allowing the arc welding torch operator to adjust the quantity of material feed while actually in the process of welding. The apparatus provides for user speed adjustable controls to be operated by a foot pedal device or similar means which would allow the operator of the welding torch to continue the operation during the adjustment process and eliminates the need for the operator to cease the welding operation while adjustment of the material feed delivery speed is undertaken.
TL;DR: In this paper, a new technique called friction stitch welding was developed for the repair of cracked window welds in tubular members in offshore structures, which is a viable alternative to hyperbaric welding or in some instances grouted clamps.
Abstract: Single sided butt and window welds in tubular members have been the cause of fatigue failures in several offshore structures. Under the sponsorship of Chevron UK Limited, The Welding Institute has developed a new technique for the repair of cracked butt welds. This process, named friction stitch welding, is a viable alternative to hyperbaric welding or in some instances grouted clamps, and will be significantly faster
TL;DR: In this article, mathematical approaches were developed for predicting the hyperbaric GMAW process arc behavior and stability, and the results showed that most of the arc instability can be traced to the frequency domain of the voltage or current waveform.
TL;DR: In this article, the authors present an alternative to saturation-diving for deep-water arc welding for joining of underwater structures without the use of underwater welding underwater engineering processes for fabrication operations Underwater welding technology Manual hyperbaric welding techniques Alternatives to saturation diving for deep water applications.
Abstract: Offshore structures, materials and standards Joining of underwater structures without the use of underwater welding Underwater engineering processes for fabrication operations Underwater welding technology Manual hyperbaric welding techniques Alternatives to saturation diving for deep water applications Deep water arc welding processes Alternatives to arc welding for deep water joining operations Conclusions. Appendices: Oceanography Diving technology Hyperbaric welding research techniques.