[PDF] Pulsed Current Arc Welding Processes eBook

Author : J. J. Vagi
Publisher :
Page : 30 pages
File Size : 30,82 MB
Release : 1970
Category : Electric welding
ISBN :

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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).

Author : J A Street
Publisher : Elsevier
Page : 58 pages
File Size : 25,71 MB
Release : 1990-08-31
Category : Technology & Engineering
ISBN : 0857093274

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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.

Author : Yiming Huang
Publisher : Springer
Page : 173 pages
File Size : 45,56 MB
Release : 2019-04-30
Category : Technology & Engineering
ISBN : 9811375496

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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.

Author : W Lucas
Publisher : Woodhead Publishing
Page : 120 pages
File Size : 24,81 MB
Release : 1990-10-31
Category : Technology & Engineering
ISBN : 9781855730052

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This book provides designers, welding engineers and metallurgists with the essential information for understanding the welding operation and for applying the processes in production. The fundamental electrical, arc and process characteristics are described for various operating modes, including current, micro-TIG, TIG hot wire, narrow gap TIG and keyhole plasma.

Author : Prakriti Kumar Ghosh
Publisher : Springer
Page : 341 pages
File Size : 25,93 MB
Release : 2017-04-05
Category : Technology & Engineering
ISBN : 9811035571

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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.

Author : Matthew J. Donachie
Publisher : ASM International
Page : 439 pages
File Size : 39,3 MB
Release : 2002
Category : Heat resistant alloys
ISBN : 1615030646

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This book covers virtually all technical aspects related to the selection, processing, use, and analysis of superalloys. The text of this new second edition has been completely revised and expanded with many new figures and tables added. In developing this new edition, the focus has been on providing comprehensive and practical coverage of superalloys technology. Some highlights include the most complete and up-to-date presentation available on alloy melting. Coverage of alloy selection provides many tips and guidelines that the reader can use in identifying an appropriate alloy for a specific application. The relation of properties and microstructure is covered in more detail than in previous books.

Author : P. T. Houldcroft
Publisher : Cambridge University Press
Page : 326 pages
File Size : 19,30 MB
Release : 1977-12-08
Category : Technology & Engineering
ISBN : 9780521215305

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About the many ways in which metal parts may be assembled by welding, the principles of operation, main characteristics and applications. The emphasis throughout is on how processes work.