Download or read book Additive Manufacturing Laser Deposition of Ti 6Al 4V for Aerospace Repair Application written by Nanda Kumar Dey and published by . This book was released on 2014 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Parts or products machined from high performance metals are very expensive, partly due to the processing complexities during manufacturing. Therefore, many high performance metal parts users, such as the aerospace industry, mold/die casting industry, heavy machinery consumers etc., extend the service of these damaged parts by employing repair or remanufacturing technology. The research objective is to use laser deposition and machining processes to repair titanium parts. This thesis discusses a new way of approach for developing a repair process for Ti-6Al-4V for the aerospace industry using Laser Metal Deposition (LMD). The repairs were conducted in a multi-axis hybrid manufacturing systems in which the laser deposition and the machining processes are integrated. The study broadly included preparing the defects, laser deposition, machining, sample preparations and mechanical tests. Comparative study of mechanical properties (UTS, YS, percentage elongation) of the repaired samples to the ideal conditions was undertaken. The research throws up interesting facts where the data from the test sample shows enhancement of properties of the repaired part."--Abstract, page iv.

Download or read book Additive Manufacturing of Titanium Alloys written by Bhaskar Dutta and published by Butterworth-Heinemann. This book was released on 2016-06-17 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additive Manufacturing of Titanium Alloys: State of the Art, Challenges and Opportunities provides alternative methods to the conventional approach for the fabrication of the majority of titanium components produced via the cast and wrought technique, a process which involves a considerable amount of expensive machining. In contrast, the Additive Manufacturing (AM) approach allows very close to final part configuration to be directly fabricated minimizing machining cost, while achieving mechanical properties at least at cast and wrought levels. In addition, the book offers the benefit of significant savings through better material utilization for parts with high buy-to-fly ratios (ratio of initial stock mass to final part mass before and after manufacturing). As titanium additive manufacturing has attracted considerable attention from both academicians and technologists, and has already led to many applications in aerospace and terrestrial systems, as well as in the medical industry, this book explores the unique shape making capabilities and attractive mechanical properties which make titanium an ideal material for the additive manufacturing industry. - Includes coverage of the fundamentals of microstructural evolution in titanium alloys - Introduces readers to the various Additive Manufacturing Technologies, such as Powder Bed Fusion (PBF) and Directed Energy Deposition (DED) - Looks at the future of Titanium Additive Manufacturing - Provides a complete review of the science, technology, and applications of Titanium Additive Manufacturing (AM)

Download or read book Laser Wire Deposition Additive Manufacturing of Ti 6Al 4V for the Aerospace Industry written by Nejib Chekir and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Additive manufacturing (AM) is an attractive solution to reduce processing cost of complex components. The interest of the aerospace industry into Ti-6Al-4V resides in its excellent strength to weight ratio and corrosion resistance properties. As of today, control of the process to structure to property relationship for AM technologies remains challenging. This research investigates the effects of some key laser wire deposition (LWD) parameters and various post deposition heat treatments on the developed microstructure and subsequent properties of the deposited Ti-6Al-4V materials. The effect of two different travel speeds on the structural development of thin Ti-6Al-4V deposits was investigated. A travel speed set at 1.4 mm/s promoted recrystallization of columnar prior [beta] grains into horizontal prior [beta] grains and a diffusion-controlled type of microstructure. A travel speed set at 7.2 mm/s resulted in higher cooling rates that produced a refined microstructure while no recrystallization of the prior [beta] grains has been observed. Next the effect of five different post deposition heat treatments were investigated. A stress relief preserved the morphology of the deposited samples while annealing or HIP, followed or not by aging, coarsened the developed microstructure. The lower travel speed exhibited a strong anisotropy in elongation with lower values generated along the build direction as opposed to the isotropic results in elongation at higher travel speed. Moreover, samples processed at 7.2 mm/s produced high strength meeting the minimum wrought requirements as set by the AMS4911. Eventually, the grain boundary strengthening mechanism with regards to the [alpha] platelets thicknesses was found to be travel speed dependent. Thick samples were characterized by the deposition of multiple lateral beads within one layer. Thermal history was first investigated through the development of a FEM model reproducing the deposition process. Typical macrostructures and microstructures that developed post deposit were then investigated. Subsequent static tensile properties were found to be hardly meeting the cast minimum requirements as set by the ASTM F1108. No anisotropy in the impact toughness properties was observed. Eventually, HIP did not induce any major improvement of the mechanical properties for both thin and thick specimens and is not required for LWD applications. All the previous findings were eventually applied for the printing of a large Ti-6Al-4V aerospace component. The deposition strategy was presented. Destructive and non-destructive testing were done to check the printed part geometry and the process to structure to properties relationship. The printed part was characterized with a buy-to-fly ratio (BTF) of about 3.2:1 as opposed to a BTF ratio of 30.8:1 when using conventional subtractive processes." --

Download or read book Additive Manufacturing for the Aerospace Industry written by Francis H. Froes and published by Elsevier. This book was released on 2019-02-15 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additive Manufacturing for the Aerospace Industry explores the design, processing, metallurgy and applications of additive manufacturing (AM) within the aerospace industry. The book's editors have assembled an international team of experts who discuss recent developments and the future prospects of additive manufacturing. The work includes a review of the advantages of AM over conventionally subtractive fabrication, including cost considerations. Microstructures and mechanical properties are also presented, along with examples of components fabricated by AM. Readers will find information on a broad range of materials and processes used in additive manufacturing. It is ideal reading for those in academia, government labs, component fabricators, and research institutes, but will also appeal to all sectors of the aerospace industry. - Provides information on a broad range of materials and processes used in additive manufacturing - Presents recent developments in the design and applications of additive manufacturing specific to the aerospace industry - Covers a wide array of materials for use in the additive manufacturing of aerospace parts - Discusses current standards in the area of aerospace AM parts

Download or read book Titanium written by Matthew J. Donachie and published by ASM International. This book was released on 2000 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed to support the need of engineering, management, and other professionals for information on titanium by providing an overview of the major topics, this book provides a concise summary of the most useful information required to understand titanium and its alloys. The author provides a review of the significant features of the metallurgy and application of titanium and its alloys. All technical aspects of the use of titanium are covered, with sufficient metals property data for most users. Because of its unique density, corrosion resistance, and relative strength advantages over competing materials such as aluminum, steels, and superalloys, titanium has found a niche in many industries. Much of this use has occurred through military research, and subsequent applications in aircraft, of gas turbine engines, although more recent use features replacement joints, golf clubs, and bicycles.Contents include: A primer on titanium and its alloys, Introduction to selection of titanium alloys, Understanding titanium's metallurgy and mill products, Forging and forming, Castings, Powder metallurgy, Heat treating, Joining technology and practice, Machining, Cleaning and finishing, Structure/processing/property relationships, Corrosion resistance, Advanced alloys and future directions, Appendices: Summary table of titanium alloys, Titanium alloy datasheets, Cross-reference to titanium alloys, Listing of selected specification and standardization organizations, Selected manufacturers, suppliers, services, Corrosion data, Machining data.

Download or read book Laser Metal Deposition Process of Metals Alloys and Composite Materials written by Rasheedat Modupe Mahamood and published by Springer. This book was released on 2017-09-05 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the industrial potential and explains the physics behind laser metal deposition (LMD) technology. It describes the laser metal deposition (LMD) process with the help of numerous diagrams and photographs of real-world process situations, ranging from the fabrication of parts to the repair of existing products, and includes case studies from current research in this field. Consumer demand is moving away from standardized products to customized ones, and to remain competitive manufacturers require manufacturing processes that are flexible and able to meet consumer demand at low cost and on schedule. Laser metal deposition (LMD) is a promising alternative manufacturing process in this context. This book enables researchers and professionals in industry gain a better understanding of the LMD process, which they can then use in real-world applications. It also helps spur on further innovations.

Download or read book Advanced Composites in Aerospace Engineering Applications written by Norkhairunnisa Mazlan and published by Springer Nature. This book was released on 2022-02-21 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an authoritative account of the potential of advanced composites such as composites, biocomposites, composites geopolymer, hybrid composites and hybrid biocomposites in aerospace application. It documents how in recent years, composite materials have grown in strength, stature, and significance to become a key material of enhanced scientific interest and resultant research into understanding their behavior for selection and safe use in a wide spectrum of technology-related applications. This collection highlights how their unique combination of superior properties such as low density, high strength, high elastic modulus, high hardness, high temperature capability, and excellent chemical and environmental stability are optimized in technologies within these field.

Download or read book Laser Additive Manufacturing written by Milan Brandt and published by Woodhead Publishing. This book was released on 2016-09-01 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser Additive Manufacturing: Materials, Design, Technologies, and Applications provides the latest information on this highly efficient method of layer-based manufacturing using metals, plastics, or composite materials. The technology is particularly suitable for the production of complex components with high precision for a range of industries, including aerospace, automotive, and medical engineering. This book provides a comprehensive review of the technology and its range of applications. Part One looks at materials suitable for laser AM processes, with Part Two discussing design strategies for AM. Parts Three and Four review the most widely-used AM technique, powder bed fusion (PBF) and discuss other AM techniques, such as directed energy deposition, sheet lamination, jetting techniques, extrusion techniques, and vat photopolymerization. The final section explores the range of applications of laser AM. Provides a comprehensive one-volume overview of advances in laser additive manufacturing Presents detailed coverage of the latest techniques used for laser additive manufacturing Reviews both established and emerging areas of application

Download or read book Laser Based Additive Manufacturing of Metal Parts written by Linkan Bian and published by CRC Press. This book was released on 2017-08-09 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser-Based Additive Manufacturing (LBAM) technologies, hailed by some as the "third industrial revolution," can increase product performance, while reducing time-to-market and manufacturing costs. This book is a comprehensive look at new technologies in LBAM of metal parts, covering topics such as mechanical properties, microstructural features, thermal behavior and solidification, process parameters, optimization and control, uncertainty quantification, and more. The book is aimed at addressing the needs of a diverse cross-section of engineers and professionals.

Download or read book Friction Stir Processing of Laser Metal Deposited Ti 6Al 4V written by Romy Francis and published by . This book was released on 2009 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Laser metal deposition (LMD) can form near net shaped components for aerospace applications. Ti-6Al-4V is a widely used aerospace alloy and fabrication of this alloy using LMD is gaining popularity. Improved mechanical properties are always a requirement in aerospace alloys and research is constantly being conducted to improve the properties of components formed from this alloy. Friction Stir Processing (FSP) in the past has been used as a method to change the surface properties of materials through microstructural modifications. The changes in properties can include hardness, corrosion resistance, fatigue strength, etc. The first section of this thesis is based on a similar concept to modify the surface properties of the laser deposited Ti-6Al-4V through FSP. Microstructural changes in the Ti-6Al-4V laser deposits due to FSP and subsequent laser deposition has been presented. The microstructure was characterized by the SEM and optical microscope. Variations in the microhardness inside the nugget region have also been discussed. The second section of the thesis proposes a methodology to create a fully forged, recrystallized structure by integrating the hybrid laser deposition system and FSP. Various FSP parameters investigated in attaining the same have been discussed. The effective nugget region which was left unaffected due to the subsequent single, double and triple layer laser deposition has also been presented"--Abstract, leaf iv.

Download or read book Progress in Metal Additive Manufacturing and Metallurgy written by Robert Pederson and published by MDPI. This book was released on 2020-12-03 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advent of additive manufacturing (AM) processes applied to the fabrication of structural components creates the need for design methodologies supporting structural optimization approaches that take into account the specific characteristics of the process. While AM processes enable unprecedented geometrical design freedom, which can result in significant reductions of component weight, on the other hand they have implications in the fatigue and fracture strength due to residual stresses and microstructural features. This is linked to stress concentration effects and anisotropy that still warrant further research. This Special Issue of Applied Sciences brings together papers investigating the features of AM processes relevant to the mechanical behavior of AM structural components, particularly, but not exclusively, from the viewpoints of fatigue and fracture behavior. Although the focus of the issue is on AM problems related to fatigue and fracture, articles dealing with other manufacturing processes with related problems are also be included.

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 TAGUCHI METHODS EXPLAINED PRACTICAL STEPS TO ROBUST DESIGN written by and published by . This book was released on 1993 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis CFD Simulation and Characterization of Direct Laser Metal Deposition LMD of Al Cu Ti Coatings on Ti 6Al 4V Alloy for Aerospace Application written by Adedoyin Michael Lasisi and published by . This book was released on 2020 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Manufacturing Technologies written by Kapil Gupta and published by Springer. This book was released on 2017-04-29 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides details and collective information on working principle, process mechanism, salient features, and unique applications of various advanced manufacturing techniques and processes belong. The book is divided in three sessions covering modern machining methods, advanced repair and joining techniques and, finally, sustainable manufacturing. The latest trends and research aspects of those fields are highlighted.

Download or read book Build Strategy Investigation of Ti 6Al 4V Produced Via a Hybrid Additive Manufacturing Process written by Lei Yan and published by . This book was released on 2019 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Till now, laser metal deposition (LMD) has been developed with the capability of near-net shape high-performance metal parts fabrication, especially complicated titanium alloys, nickel alloys, and aluminum alloys. However, LMD processed parts usually do not meet end-use requirements without post treatments. In-process part quality inspection and inner features machining are impossible within a single LMD process. Hybrid additive manufacturing (HAM), which integrates additive and subtractive manufacturing in one process, has been proposed to increase the feasibility of complex parts fabrication. This dissertation aims to improve the applications of Ti-6Al-4V parts fabricated via a HAM technique. The first research topic is to investigate the build strategy using the HAM process of correlating yield strength of final parts to processing parameters from both additive and subtractive processes for Ti-6Al-4V structures. The second research topic focuses on coolant residue cleaning methods, where effective cleaning methods have been generated on both oil- and water-based coolant. To reduce trial-and-error efforts and optimize large-scale parts fabrication using HAM, thermal control has become an essential factor that directly relates to the final distortion and residual stress. Hence, the third research topic is conducted on the fast prediction of thermal history in large-scale parts fabrication via a HAM process. This dissertation leads to new knowledge for the effective fabrication of metallic components via a HAM process. Moreover, the research results of the dissertation could benefit a wide range of industries"--Abstract, page iv.

Download or read book Titanium and Titanium Alloys written by Christoph Leyens and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is an excellent reference for materials scientists and engineers needing to gain more knowledge about these engineering materials. Following introductory chapters on the fundamental materials properties of titanium, readers will find comprehensive descriptions of the development, processing and properties of modern titanium alloys. There then follows detailed discussion of the applications of titanium and its alloys in aerospace, medicine, energy and automotive technology.