The Use Of Pulsed Current To Control The Weld Profile And Metal Transfer In The Submerged Arc Welding Process
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The Use Of Pulsed Current To Control The Weld Profile And Metal Transfer In The Submerged Arc Welding Process
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Author : O. A. A. Ismail
language : en
Publisher:
Release Date : 1982
The Use Of Pulsed Current To Control The Weld Profile And Metal Transfer In The Submerged Arc Welding Process written by O. A. A. Ismail and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with categories.
Pulsed Arc Welding
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Author : J A Street
language : en
Publisher: Elsevier
Release Date : 1990-08-31
Pulsed Arc Welding written by J A Street and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-08-31 with Technology & Engineering categories.
Various forms of thermal pulsing in TIG and MIG welding, and droplet pulsing in the MIG process, are described in detail. The author also discusses some disadvantages of pulsing in order to stress the importance of choosing an appropriate level of technology to fulfil a given requirement.
Influence Of Current Pulse Profile On Metal Transfer In Pulsed Gas Metal Arc Welding
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Author : Emanuel Bruno Ferreira dos Santos
language : en
Publisher:
Release Date : 2017
Influence Of Current Pulse Profile On Metal Transfer In Pulsed Gas Metal Arc Welding written by Emanuel Bruno Ferreira dos Santos and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Gas metal arc welding categories.
The increase in the requirements of safety and reliability demanded from the normalization institutes by the issue of normalizing standards, led to the need of the development of materials of superior properties. Owing to the development of metallurgy, the development of materials with extremely high values of strength and toughness was made possible. However, employing these materials in industrial applications is limited by the deterioration of their properties after the material is processed using techniques such as welding. To cope with this challenge, several welding process have been developed. One of these processes is the pulse gas metal arc welding (GMAW-P), in which the arc current is periodically pulsed in order to achieve metal transfer and effectively join the material being dealt with, and this decrease the energy input to the base metal. Due to the advance of electronics and transistor technology there are a large number of current pulse profiles commercially available, with different degrees of complexity, designed for specific applications. Determining the balance between the complexity and benefits for the various pulse profiles and process modifications available is the main motivation for the research presented in this thesis. Specifically, the metal transfer of two commercially available current profiles was studied using high-speed imaging and high speed data acquisition of the electrical signal during welding, for different welding conditions. The results showed that the mode of metal transfer differs for the investigated profiles and that for the same pulse profile, as the pulse parameters are modified the metal and heat transfer changes, altering weld bead features such cross-sectional area and penetration.
Pulse Current Gas Metal Arc Welding
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Author : Prakriti Kumar Ghosh
language : en
Publisher: Springer
Release Date : 2017-04-05
Pulse Current Gas Metal Arc Welding written by Prakriti Kumar Ghosh and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-04-05 with Technology & Engineering categories.
This monograph is a first-of-its-kind compilation on high deposition pulse current GMAW process. The nine chapters of this monograph may serve as a comprehensive knowledge tool to use advanced welding engineering in prospective applications. The contents of this book will prove useful to the shop floor welding engineer in handling this otherwise critical welding process with confidence. It will also serve to inspire researchers to think critically on more versatile applications of the unique nature of pulse current in GMAW process to develop cutting edge welding technology.
Interdisciplinary Treatment To Arc Welding Power Sources
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Author : S. Arungalai Vendan
language : en
Publisher: Springer
Release Date : 2018-06-30
Interdisciplinary Treatment To Arc Welding Power Sources written by S. Arungalai Vendan and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-30 with Technology & Engineering categories.
This book presents the fundamentals of arc phenomena, various arc welding power sources, their control strategies, welding data acquisition, and welding optimization. In addition, it discusses a broad range of electrical concepts in welding, including power source characteristics, associated parameters, arc welding power source classification, control strategies, data acquisitions techniques, as well as optimization methods. It also offers advice on how to minimize the flaws and improve the efficacy and performance of welds, as well as insights into the mechanical behavior expressed in terms of electromagnetic phenomena, which is rarely addressed. The book provides a comprehensive review of interdisciplinary concepts, offering researchers a wide selection of strategies, parameters, and sequences of operations to choose from.
Pulsed Current Arc Welding Processes
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Author : J. J. Vagi
language : en
Publisher:
Release Date : 1970
Pulsed Current Arc Welding Processes written by J. J. Vagi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Electric welding categories.
Pulsed-current is used primarily with the gas tungsten-arc and gas metal-arc welding processes and, to a limited degree, with plasma-arc welding. The pulsed-current arc welding processes employ two levels of welding current instead of the single level that is used conventionally. Welding current is, in effect, switched between a high and a low level to produce a 'pulsating' current or welding arc. Pulsed-current processes offer important advantages, including, among others, improved control of welding heat input rates, reduced distortion of the parts during welding, improved weld quality, and improved control of weld metal deposition in all welding positions. Pulsed-current gas tungsten-arc (PC-GTA) and pulsed-current gas metal-arc (PC-GMA) welding processes have been used for joining a variety of materials, including some that are often considered difficult-to-weld materials. The memorandum reviews the available literature that has been published on pulsed-current arc welding processes. In addition, information was obtained from numerous representatives of pulsed-current equipment manufacturers and users. (Author).
Welding And Distortion Control
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Author : Nisith R. Mandal
language : en
Publisher: Alpha Science International, Limited
Release Date : 2004
Welding And Distortion Control written by Nisith R. Mandal and has been published by Alpha Science International, Limited this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Social Science categories.
Welding and Distortion Control illustrates various welding methods with particular focus on shipbuilding, namely Sheet Metal Arc Welding (SMAW), Gas Metal Arc Welding (GMAW), Gas Tungsten Arc Welding (GTAW), Submerged Arc Welding (SAW) and Electro-slag along with single side and multi-electrode welding techniques. The chapter on welding distortion starts by explaining the distortion mechanism and subsequently introduces various types of distortions encountered and their prediction methods. Suitable distortion prediction tools have been explained to help welding engineers and structural designers to implement effective distortion control measures and to make production friendly designs for achieving the goal of near zero distortion in fabricated structures which will eliminate to a great extent the tedious post weld fairing work.
Modeling Sensing And Control Of Gas Metal Arc Welding
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Author : S. Ozcelik
language : en
Publisher: Elsevier
Release Date : 2003-06-11
Modeling Sensing And Control Of Gas Metal Arc Welding written by S. Ozcelik and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-06-11 with Technology & Engineering categories.
Arc welding is one of the key processes in industrial manufacturing, with welders using two types of processes - gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW). This new book provides a survey-oriented account of the modeling, sensing, and automatic control of the GMAW process.Researchers are presented with the most recent information in the areas of modeling, sensing and automatic control of the GMAW process, collecting a number of original research results on the topic from the authors and colleagues. Providing an overview of a variety of topics, this book looks at the classification of various welding processes; the modeling aspects of GMAW; physics of welding; metal transfer characteristics; weld pool geometry; process voltages and variables; power supplies; sensing (sensors for arc length, weld penetration control, weld pool geometry, using optical and intelligent sensors); control techniques of PI, PID, multivariable control, adaptive control, and intelligent control. Finally, the book illustrates a case study presented by the authors and their students at Idaho State University, in collaboration with researchers at the Idaho National Engineering and Environment Laboratory.
First International Conference On Computer Technology In Welding
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Author : Welding Institute
language : en
Publisher:
Release Date : 1987
First International Conference On Computer Technology In Welding written by Welding Institute and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Welded joints categories.
Key Technologies Of Intelligentized Welding Manufacturing
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Author : Yiming Huang
language : en
Publisher: Springer
Release Date : 2019-04-30
Key Technologies Of Intelligentized Welding Manufacturing written by Yiming Huang and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-04-30 with Technology & Engineering categories.
This book presents the recent research results of the application of arc spectrum in the welding process. It sheds light on the fundamentals of monitoring welding quality using arc spectral information. By analyzing the topic both from a global and local perspective, it establishes a knowledge base of features characterizing welding statuses. Researchers, scientists and engineers in the field of intelligent welding can benefit from the book. As such, this book provides valuable knowledge, useful methods, and practical algorithms that are applicable in real-time detection of welding defects.