Results 171 to 180 of about 11,150 (222)

HydroWeld Underwater Welding Process

Offshore Technology Conference, 1973
ABSTRACT A new underwater welding process has been under continuous development since 1968. It permits the welder/diver to work in-the-wet while the actual welding is performed in a dry gaseous environment using a specially-developed portable miniature habitat.
Harvey O. Mohr, Marvin O. Kluttz, Bill E. White   +2 more
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Permanent Underwater Wet Weld Repairs

MPWT 2019, 2019
Abstract Subsea Global Solutions (SGS) it a worldwide provider for underwater ship repair and maintenance. During a 2.5 year long extensive joint research and development program with DNV GL it was proven that underwater wet welds meeting the class A requirements of AWS D3.6-Underwater Welding Code can be produced. AWS D3.6 Class A welds
Uwe Aschemeier, Marcur Cridland, Mushtaq Shaik   +2 more
openaire   +1 more source

Advances in Underwater Welding

OCEANS '86, 1986
A discussion of dry hyperbaric and wet welding will be made with comments on the economics of both types. The Underwater Welding Specification AWS D3.6 will be described as an aid to engineers and contractors to prescribe and assure sound underwater welding. Recent research and development work in underwater welding will be discussed and the effects of
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Fundamental Study of Underwater Welding

Offshore Technology Conference, 1972
Abstract This paper stresses the need for a reliable underwater "wet" welding process and points out the value of fundamental research in this area. Various heat transfer mechanisms are sited as being ultimately responsible for metallurgical structure and residual stress.
Alan J. Brown, James A. Staub, Koichi Masubuchi   +2 more
openaire   +1 more source

Safety in underwater welding

2010
Main hazards about safety in underwater welding are presented with respect to diving and welding operations. Safety instructions are given for performing underwater welding on real objects.
Kožuh, Zoran, Kralj, Slobodan, Eržišnik, Jadranka   +2 more
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Review of Underwater Welding Technology

OCEANS 81, 1981
This paper reviews the present state-of-the-art of welding technology which is rapidly expanding. After a brief introduction, a discussion is made on how underwater welding technologies and their applications have developed. The paper then discusses the status of underwater welding techniques currently in use.
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Robots to inspect welds underwater

Industrial Robot: An International Journal, 1994
Examines research work to investigate the potential of using robot manipulators for underwater ultrasonic testing of welds in joints of complex geometry. Describes experiments carried out into non‐contact ultrasonic immersion testing using a six‐axis robot and an ultrasonic inspection system and gives results from scanning of a small T‐node specimen ...
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A survey of underwater welding techniques

Endeavour, 1987
Abstract Although the technique of welding was reputedly known to the Romans it was not effectively used as a constructional method until the turn of the last century and it was not applied to large structures — such as bridges, ships, and steel-framed buildings — until the 1930s. Since mid-century the large-scale exploitation of undersea gas and oil
J. Nixondg, J. Billingham
openaire   +1 more source

Underwater Welding

2023
Feng Jicai, Xu Kuangdi
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Underwater welding

2011
Underwater technologies take special role in modern offshore facilities, pipelines, ships and floating objects repair and maintenance. Huge numbers of underwater structures which are used in oil and gas production, as well as increasing intensity of naval transport present the technological cornerstone of the economical development and strategic issues.
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