Download or read book Experimental Investigation for Gas Metal Arc Welding Process for Maximizing Tensile Strength of AA7075 T73 written by Krupal Pawar and published by GRIN Verlag. This book was released on 2016-02-08 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research Paper (postgraduate) from the year 2016 in the subject Materials Science, , language: English, abstract: In this paper, experimental investigation is carried out for Gas Metal Arc welding process for optimizing the tensile vigor of Aluminium Alloy7075-T73.This is arduous to weld Aircraft material utilizing Gas Metal Arc welding process. In this paper the L9 orthogonal array is employed to design the experiments. The experimentation was carried out in Ador Welding Ltd. Pune and the tensile vigor was quantified utilizing Macrocosmic Testing Machine (UTM) at the Sharadchandra Pawar College of Engineering, Otur, workshop. The cull of erroneous parameters for welding may hazardous to the whole process and positions. This paper proposes and demonstrates the Taguchi’s Method for evaluating the performance measures of GMAW process. The input parameters such as current (Amp), Voltage (V0), welding speed (mm/min) and gas flow rate (Lit/min) are considered for study with tensile vigor as replication factor. The result of the paper can be utilized for maximizing the tensile vigor of AA7075-T73.

Download or read book An Expiremental Study and Modeling on Gas Metal Arc Welded Lap Joint of A7075 T651 Aluminium Alloy to AZ31B Magnesium Alloy written by Md. Rafiqul Islam and published by . This book was released on 2015 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovative welding technique for joining aluminum and magnesium alloys in automobile, aviation, aerospace and marine industries would achieve weight reduction, high specific strength as well as increase fuel efficiency and reduce environmental pollution. However, poor mechanical properties of welding joint between aluminum and magnesium alloys due to the formation of AlmMgn type brittle intermetallic compounds is the main barrier for extensive uses of these two alloys especially in transportation sectors. No exact solution has been established yet for reliable joining while; modeling study in this area is still much lagging. This research work was carried out to conduct experimental study and mathematical modeling of mechanical properties for A7075- T651 aluminum and AZ31B magnesium alloys joints welded by gas metal arc lap welding method. Unconventional ER308L-Si stainless steel and conventional ER5356 aluminum wires were used as filler. Shielding gas used was 98% argon and 2% oxygen. The shielding gas flow rate, tip to work distance, welding current and voltage were the variable parameters. Box-Behnken technique in response surface methodology was used for design of experiments. The welding torch angle, filler wire diameter and parent metal thickness were kept constant. The ultimate tensile strength and fracture toughness of the joints were evaluated. The fracture toughness of the welding joints was calculated from yield strength and absorbed charpy impact energy of the joints using Rolfe-Novak-Barsom correlation. Mathematical models were developed based on regression analysis to relate the responses (ultimate tensile strength and fracture toughness) with welding variable parameters and validation experiments were conducted to verify the models. The significance and effects of variable parameters on the responses were also analyzed. The macro and microstructures at the welding cross section were investigated by optical microscope. The fracture surface morphologies and elements analysis at the welding cross section were carried out by scanning electron microscopy and electron dispersive X-ray spectroscopy. The results revealed that more significant mechanical properties were achieved with stainless steel filler compared to aluminum filler. The maximum yield strength, ultimate tensile strength and fracture toughness were 203.09 MPa, 249.33 MPa and 27.49 MPa√m respectively with steel filler; and 176.30 MPa, 226.28 MPa and 20.22 MPa√m respectively with aluminum filler. The analysis of variance showed that a very good fitting and variation with data, high accuracy in predicting the responses have been illustrated by the models for both fillers. The validation tests revealed that the ultimate tensile strength models can predict the responses within 0.21% and 1.81% maximum error, and fracture toughness models can predict the responses within 0.51% and 3.36% maximum error respectively. Most of the joints failed at AZ31B alloy (with steel filler) and ER5356 aluminum nugget (with aluminum filler). The investigation revealed that fracture occurred due to brittle fracture mechanism by formation of micro pores, voids, cracks, MgnOm oxides, very little amount of MgnFem and AlmMgn intermetallic compounds at AZ31B alloy, and due to micro pores, voids, cracks, AlmOn and MgmOn oxides and a good amount of AlmMgn intermetallic compounds at aluminum nugget. There was no evidence of fracture from metallurgical bonding between steel or aluminum nuggets and parent alloy. The output of this research exhibited very significant mechanical properties of the joint that can facilitate the extensive uses of A7075-T651 and AZ31B alloys in mass production of light weight vehicle structures in transportation industries.

Download or read book Experimental Studies in Gas Metal Arc Welding of Aluminum Alloys written by Blaine David Christensen and published by . This book was released on 2001 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigations on Friction Stir Welding to Improve Aluminum Alloys written by Bazani Shaik and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today is an era of metals including Aluminum alloys owing to a fundamental paradigm shift in research objectives. In addition to superior performance and lightweight criteria that are used to define the innovations of yore, scientists today are compelled to take into consideration the environment-friendliness of the new and novel materials being developed due to the concerns of maintaining a sustainable and safe existence. The solid-state Friction stir welding process has immense potential in the areas of automobiles, aerospace and construction industries due to its overwhelming advantages over the conventional fusion welding process of aluminum alloys. The thesis presents an experimental investigation of friction stir welding of dissimilar aluminum alloys AA7075T651 and AA6082T651. Mathematical modeling equations are developed to predict the tensile strength, impact strength, elongation, and micro-hardness of the dissimilar FSW joints AA7075T651 and AA6082T651. The process parameters are optimized for maximum tensile strength and hardness values. Post weld heat treatment is conducted and the metallurgical properties of the FS welded AA7075T651 and AA6082T651 are presented for different combinations of tool rotational speeds. Aluminum and its alloys are widely used in nonferrous alloys for many industrial applications. Aluminum exhibits a combination of an excellent mechanical strength with lightweight and thus it is steadily replacing steel in industrial applications where the strength to weight ratio plays a significant role. In conventional welding, the joining of aluminum is mainly associated with a high coefficient of thermal expansion, solidification shrinkage and dissolution of harmful gases in the molten metal during welding. The weld joints are also associated with segregation of secondary alloys and porosities which are detrimental to the joint qualities. Friction Stir Welding (FSW) and Friction Welding (FW) are the most popular emerging solid welding techniques in aircraft and shipbuilding industries. FSW is mainly used for the joining of metal plates and FW is mainly used for the joining of rods. Both techniques are suitable for high strength material having less weight. These techniques are environmentally friendly and easy to execute. Hence, the study of these techniques can contribute much to the field of green technology. This research work is dealt with the experimental and numerical investigations on FSW and FW of aluminum alloys.

Download or read book Hybrid Laser Arc Welding written by F O Olsen and published by Elsevier. This book was released on 2009-06-26 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid laser-arc welding (HLAW) is a combination of laser welding with arc welding that overcomes many of the shortfalls of both processes. This important book gives a comprehensive account of hybrid laser-arc welding technology and applications.The first part of the book reviews the characteristics of the process, including the properties of joints produced by hybrid laser-arc welding and ways of assessing weld quality. Part two discusses applications of the process to such metals as magnesium alloys, aluminium and steel as well as the use of hybrid laser-arc welding in such sectors as ship building and the automotive industry.With its distinguished editor and international team of contributors, Hybrid laser-arc welding is a valuable source of reference for all those using this important welding technology. - Reviews arc and laser welding including both advantages and disadvantages of the hybrid laser-arc approach - Explores the characteristics of the process including the properties of joints produced by hybrid laser-arc welding and ways of assessing weld quality - Examines applications of the process including magnesium alloys, aluminium and steel with specific focus on applications in the shipbuilding and automotive industries

Download or read book Friction Stir Welding written by Daniela Lohwasser and published by Elsevier. This book was released on 2009-12-18 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Friction stir welding (FSW) is a highly important and recently developed joining technology that produces a solid phase bond. It uses a rotating tool to generate frictional heat that causes material of the components to be welded to soften without reaching the melting point and allows the tool to move along the weld line. Plasticized material is transferred from the leading edge to trailing edge of the tool probe, leaving a solid phase bond between the two parts. Friction stir welding: from basics to applications reviews the fundamentals of the process and how it is used in industrial applications.Part one discusses general issues with chapters on topics such as basic process overview, material deformation and joint formation in friction stir welding, inspection and quality control and friction stir welding equipment requirements and machinery descriptions as well as industrial applications of friction stir welding. A chapter giving an outlook on the future of friction stir welding is included in Part one. Part two reviews the variables in friction stir welding including residual stresses in friction stir welding, effects and defects of friction stir welds, modelling thermal properties in friction stir welding and metallurgy and weld performance.With its distinguished editors and international team of contributors, Friction stir welding: from basics to applications is a standard reference for mechanical, welding and materials engineers in the aerospace, automotive, railway, shipbuilding, nuclear and other metal fabrication industries, particularly those that use aluminium alloys. - Provides essential information on topics such as basic process overview, materials deformation and joint formation in friction stir welding - Inspection and quality control and friction stir welding equipment requirements are discussed as well as industrial applications of friction stir welding - Reviews the variables involved in friction stir welding including residual stresses, effects and defects of friction stir welds, modelling thermal properties, metallurgy and weld performance

Download or read book 3D Printing and Additive Manufacturing Technologies written by L. Jyothish Kumar and published by Springer. This book was released on 2018-06-07 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a selection of papers on advanced technologies for 3D printing and additive manufacturing, and demonstrates how these technologies have changed the face of direct, digital technologies for the rapid production of models, prototypes and patterns. Because of their wide range of applications, 3D printing and additive manufacturing technologies have sparked a powerful new industrial revolution in the field of manufacturing. The evolution of 3D printing and additive manufacturing technologies has changed design, engineering and manufacturing processes across such diverse industries as consumer products, aerospace, medical devices and automotive engineering. This book will help designers, R&D personnel, and practicing engineers grasp the latest developments in the field of 3D Printing and Additive Manufacturing.

Download or read book Materials and Processes written by Barrie D. Dunn and published by Springer. This book was released on 2015-12-29 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this book is to assist scientists and engineers select the ideal material or manufacturing process for particular applications; these could cover a wide range of fields, from light-weight structures to electronic hardware. The book will help in problem solving as it also presents more than 100 case studies and failure investigations from the space sector that can, by analogy, be applied to other industries. Difficult-to-find material data is included for reference. The sciences of metallic (primarily) and organic materials presented throughout the book demonstrate how they can be applied as an integral part of spacecraft product assurance schemes, which involve quality, material and processes evaluations, and the selection of mechanical and component parts. In this successor edition, which has been revised and updated, engineering problems associated with critical spacecraft hardware and the space environment are highlighted by over 500 illustrations including micrographs and fractographs. Space hardware captured by astronauts and returned to Earth from long durations in space are examined. Information detailed in the Handbook is applicable to general terrestrial applications including consumer electronics as well as high reliability systems associated with aeronautics, medical equipment and ground transportation. This Handbook is also directed to those involved in maximizing the relia bility of new materials and processes for space technology and space engineering. It will be invaluable to engineers concerned with the construction of advanced structures or mechanical and electronic sub-systems.

Download or read book Welding Processes Handbook written by Klas Weman and published by Woodhead Publishing. This book was released on 2003 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welding processes handbookis an introductory guide to all of the main welding processes. It is specifically designed for students on EWF courses and newcomers to welding and is suitable as a textbook for European welding courses in accordance with guidelines from the European Welding Federation. Welding processes and equipment necessary for each process are described so that they can be applied to all instruction levels required by the EWF and the important areas of welded joint design, quality assurance and costing are also covered in detail.

Download or read book Strengthening and Joining by Plastic Deformation written by Uday Shanker Dixit and published by Springer. This book was released on 2018-06-05 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on strengthening and joining materials by means of plastic deformation, gathering extended research papers presented at the AIMTDR 2016 conference. Plastic deformation is used in materials processing to improve the strength of the material. For example, the rod/screw used to connect the cooker handle to the main body has to be strong and sustainable; such rods can be strengthened by plastic deformation (using multi-stage forming operations etc.). Similarly, joining by means of plastic deformation is highly valuable since it avoids the material and environmental degradation often caused by fusion welding processes. The book discusses various processing techniques in which plastic deformation is used to strengthen materials – e.g. in equal channel angular extrusion, autofrettage etc., or to join materials without melting them – e.g. in friction stir processing, riveting etc. Offering an extensive guide, the book includes chapters on roll bonding, equal channel angular pressing, autofrettage, friction stir processing/welding, magnetic pulse welding, and riveting – processes used to strengthen and join a variety of materials for lightweight applications and sustainable manufacturing. The contents of this book will be useful to researchers and practitioners alike.

Download or read book Revolutionizing Aircraft Materials and Processes written by Spiros Pantelakis and published by Springer Nature. This book was released on 2020-03-11 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the emerging needs of the aerospace industry by discussing recent developments and future trends of aeronautic materials. It is aimed at advancing existing materials and fostering the ability to develop novel materials with less weight, increased mechanical properties, more functionality, diverse manufacturing methods, and recyclability. The development of novel materials and multifunctional materials has helped to increase efficiency and safety, reduce costs, and decrease the environmental foot print of the aeronautical industry. In this book, integral metallic structures designed by disruptive concepts, including topology optimization and additive manufacturing, are highlighted.

Download or read book Friction Stir Welding and Processing VII written by Rajiv Mishra and published by Springer. This book was released on 2016-12-01 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection focuses on all aspects of science and technology related to friction stir welding and processing.

Download or read book Aerospace Materials and Material Technologies written by N. Eswara Prasad and published by Springer. This book was released on 2016-11-11 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive compilation of chapters on materials (both established and evolving) and material technologies that are important for aerospace systems. It considers aerospace materials in three Parts. Part I covers Metallic Materials (Mg, Al, Al-Li, Ti, aero steels, Ni, intermetallics, bronzes and Nb alloys); Part II deals with Composites (GLARE, PMCs, CMCs and Carbon based CMCs); and Part III considers Special Materials. This compilation has ensured that no important aerospace material system is ignored. Emphasis is laid in each chapter on the underlying scientific principles as well as basic and fundamental mechanisms leading to processing, characterization, property evaluation and applications. This book will be useful to students, researchers and professionals working in the domain of aerospace materials.

Download or read book Handbook of Materials Selection written by Myer Kutz and published by John Wiley & Sons. This book was released on 2002-07-22 with total page 1524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Erstmals in einem Band werden Werkstoffe hier (in zwei getrennten Systemen) sowohl nach ihrer technischen Anwendung als auch nach ihren Eigenschaften geordnet. - Benutzer können deshalb zunächst nach der Gruppe von Materialen suchen, die für eine spezielle Anwendung geeignet sind, und anschließend Details über jedes einzelne Material finden - Suchkriterien sind Eigenschaften wie Wärmeleitfähigkeit, optisches Reflexionsvermögen, Elastizität usw. und Anwendungsgebiete wie Bauwesen, Biomedizin, Fahrzeugbau, Luftfahrttechnik, Elektrotechnik usw. - berücksichtigt werden sowohl herkömmliche Werkstoffe (Eisen- und Nichteisenmetalle, Kunststoffe, Klebstoffe) als auch Kompositwerkstoffe und synthetische Materialen wie Laminate, Fasern und Keramiken

Download or read book Rheocasting written by and published by . This book was released on 1978 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aerospace Materials and Material Technologies written by N. Eswara Prasad and published by Springer. This book was released on 2016-11-07 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book serves as a comprehensive resource on various traditional, advanced and futuristic material technologies for aerospace applications encompassing nearly 20 major areas. Each of the chapters addresses scientific principles behind processing and production, production details, equipment and facilities for industrial production, and finally aerospace application areas of these material technologies. The chapters are authored by pioneers of industrial aerospace material technologies. This book has a well-planned layout in 4 parts. The first part deals with primary metal and material processing, including nano manufacturing. The second part deals with materials characterization and testing methodologies and technologies. The third part addresses structural design. Finally, several advanced material technologies are covered in the fourth part. Some key advanced topics such as “Structural Design by ASIP”, “Damage Mechanics-Based Life Prediction and Extension” and “Principles of Structural Health Monitoring” are dealt with at equal length as the traditional aerospace materials technology topics. This book will be useful to students, researchers and professionals working in the domain of aerospace materials.

Download or read book Light Metal Alloys Applications written by Waldemar Alfredo Monteiro and published by BoD – Books on Demand. This book was released on 2014-06-11 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lightweight alloys have become of great importance in engineering for construction of transportation equipment. At present, the metals that serve as the base of the principal light alloys are aluminum and magnesium. One of the most important lightweight alloys are the aluminum alloys in use for several applications (structural components wrought aluminum alloys, parts and plates). However, some casting parts that have low cost of production play important role in aircraft parts. Magnesium and its alloys are among the lightest of all metals and the sixth most abundant metal on earth. Magnesium is ductile and the most machinable of all metals. Many of these light weight alloys have appropriately high strength to warrant their use for structural purposes, and as a result of their use, the total weight of transportation equipment has been considerably decreased.