Shipyard Management for Welding PDF Download
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Author: United States. Coast Guard
Publisher:
ISBN:
Category : Shipbuilding
Languages : en
Pages : 20
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Book Description
Author: United States. Coast Guard
Publisher:
ISBN:
Category : Shipbuilding
Languages : en
Pages : 20
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Book Description
Author: Nisith R. Mandal
Publisher: Springer
ISBN: 9811029555
Category : Technology & Engineering
Languages : en
Pages : 314
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Book Description
This book addresses various aspects of ship construction, from ship types and construction materials, to welding technologies and accuracy control. The contents of the book are logically organized and divided into twenty-one chapters. The book covers structural arrangement with longitudinal and transverse framing systems based on the service load, and explains basic structural elements like hatch side girders, hatch end beams, stringers, etc. along with structural subassemblies like floors, bulkheads, inner bottom, decks and shells. It presents in detail double bottom construction, wing tanks & duct keels, fore & aft end structures, etc., together with necessary illustrations. The midship sections of various ship types are introduced, together with structural continuity and alignment in ship structures. With regard to construction materials, the book discusses steel, aluminum alloys and fiber reinforced composites. Various methods of steel material preparation are discussed, and plate cutting and forming of plates and sections are explained. The concept of line heating for plate bending is introduced.Welding power source characteristics, metal transfer mechanisms, welding parameters and their effects on the fusion zone, weld deposit, and weld bead profile are discussed in detail. Various fusion welding methods, MMAW, GMAW, SAW, Electroslag welding and Electrogas welding and single side welding are explained in detail. Friction stir welding as one of the key methods of solid state welding as applied to aluminum alloys is also addressed. The mechanisms of residual stress formation and distortion are explained in connection with stiffened panel fabrication, with an emphasis on weld induced buckling of thin panels. Further, the basic principles of distortion prevention, in-process distortion control and mitigation techniques like heat sinking, thermo-mechanical tensioning etc. are dealt with in detail. In its final section, the book describes in detail various types of weld defects that are likely to occur, together with their causes and remedial measures. The nondestructive testing methods that are most relevant to ship construction are explained. Lastly, a chapter on accuracy control based on statistical principles is included, addressing the need for a suitable mechanism to gauge the ranges of variations so that one can quantitatively target the end product accuracy.
Author: R Boekholt
Publisher: Elsevier
ISBN: 0857093193
Category : Technology & Engineering
Languages : en
Pages : 352
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Book Description
This report contains information from more than sixty shipyards from around the world, and gives a unique inventory of the different aspects of welding mechanization and automation used in building large, middle and small-sized ships. Shipbuilders, marine engineers and trade organisations will welcome and value this unique collection of data, assembled for the first time in such a comprehensive format, and interpreted by the author into trends for the future operation of the industry.
Author:
Publisher:
ISBN:
Category : Shipbuilding
Languages : en
Pages : 56
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Author: Welding Institute
Publisher:
ISBN:
Category : Naval architecture
Languages : en
Pages : 348
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Book Description
Author: R Boekholt
Publisher: Woodhead Publishing
ISBN: 9781855734456
Category : Technology & Engineering
Languages : en
Pages : 228
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Book Description
The welding industry is in the process of change and under pressure. New processes and new materials are being introduced in the wake of increasingly tough competition. In this book, Richard Boekholt, a senior welding consultant with vast experience and a uniquely international outlook, has compiled and summarised international practice within the field of welding developed from a European Union study 'Working Life 2000. The Welding Industry in Technological Change: a Human Resource Perspective'. The book looks at the impact of automation and explains that, while some people may feel that the use of robotics and computers will threaten welders' jobs, in fact robots and computers will help welders, not replace them. At present welders are in demand and companies are faced with difficulties in recruiting and retaining good staff. It is through improved working conditions, which are presently often environmentally unsafe with workers exposed to smoke, noise, vibration and heavy physical labour, that companies can attract and keep workers. The book emphasises the importance of managing human resources and looks at new ways of doing this. A recognition of the importance of managing human resources and looks at new ways of doing this. A recognition of the importance of training, of instructors as well as workers, will be essential to achieve the dedicated, motivated and flexible workforce necessary to work with the new technologies of the 21st century.
Author: United States. Maritime Commission
Publisher:
ISBN:
Category :
Languages : en
Pages : 52
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Book Description
Author:
Publisher:
ISBN:
Category : Shipbuilding
Languages : en
Pages : 0
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 17
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Computer Aided Process Planning (CAPP) integrated with Computer Aided Design (CAD) and Computer Aided Manufacturing (CAM) will form the basis of engineering/planning systems of the future. These systems will have the capability to operate in a paperless environment and provide highly optimized process operation plans. The WELDEXCELL System is a prototype of such a system for welding in shipyards. The paper discusses three significant computer technology advances which have been incorporated into the WELDEXCELL prototype. First is a computerized system for allowing multiple knowledge sources (expert systems, humans, data systems, etc.) to work together to solve a common problem (the weld plan). This system is called a "blackboard". The second is a methodology for the blackboard to communicate to the human user. This interface includes full interactive graphics fully integrated to CAD as well as data searches and automatic completion of routine engineering tasks. The third is artificial neural networks (ANS's), which are based on biological neural networks (e.g. the human brain), that can do neural reasoning tasks about difficult problems. ANS's offer the opportunity to model highly complex multi-variable and non-linear processes (e.g. welding) and provide a means for an engineer to quantitatively assess the process and its operation.
Author: United States. War Manpower Commission
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Book Description
