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Thermal Effects In The Stability Of The Machining Process
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Book Synopsis Process Machine Interactions by : Berend Denkena
Download or read book Process Machine Interactions written by Berend Denkena and published by Springer Science & Business Media. This book was released on 2012-09-14 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: This contributed volume collects the scientific results of the DFG Priority Program 1180 Prediction and Manipulation of the Interactions between Structures and Processes. The research program has been conducted during the years 2005 and 2011, whereas the primary goal was the analysis of the interactions between processes and structures in modern production facilities. This book presents the findings of the 20 interdisciplinary subprojects, focusing on different manufacturing processes such as high performance milling, tool grinding or metal forming. It contains experimental investigations as well as mathematical modeling of production processes and machine interactions. New experimental advancements and novel simulation approaches are also included.
Author :Katherine M. Calamba Publisher :Linköping University Electronic Press ISBN 13 :9176850412 Total Pages :76 pages Book Rating :4.1/5 (768 download)
Book Synopsis Phase stability and defect structures in (Ti,Al)N hard coatings by : Katherine M. Calamba
Download or read book Phase stability and defect structures in (Ti,Al)N hard coatings written by Katherine M. Calamba and published by Linköping University Electronic Press. This book was released on 2019-05-27 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study highlights the role of nitrogen vacancies and defect structures in engineering hard coatings with enhanced phase stability and mechanical properties for high temperature applications. Titanium aluminum nitride (Ti,Al)N based materials in the form of thin coatings has remained as an outstanding choice for protection of metal cutting tools due to its superior oxidation resistance and high-temperature wear resistance. High-temperature spinodal decomposition of metastable (Ti,Al)N into coherent c-TiN and c-AlN nm-sized domains results in high hardness at elevated temperatures. Even higher thermal input leads to transformation of c-AlN to w-AlN, which is detrimental to the mechanical properties of the coating. One mean to delay this transformation is to introduce nitrogen vacancies. In this thesis, I show that by combining a reduction of the overall N-content of the c-(Ti,Al)Ny (y < 1) coating with a low substrate bias voltage during cathodic arc deposition an even more pronounced delay of the c-AlN to w-AlN phase transformation is achieved. Under such condition, age hardening is retained until 1100 ?C, which is the highest temperature reported for (Ti,Al)N films. During cutting operations, the wear mechanism of the cathodicarc-deposited c-(Ti0.52Al0.48)Ny with N-contents of y = 0.92, 0.87, and 0.75 films are influenced by the interplay of nitrogen vacancies, microstructure, and chemical reactions with the workpiece material. The y = 0.75 coating contains the highest number of macroparticles and has an inhomogeneous microstructure after machining, which lower its flank and crater wear resistance. Age hardening of the y = 0.92 sample causes its superior flank wear resistance while the dense structure of the y = 0.87 sample prevents chemical wear that results in excellent crater wear resistance. Heteroepitaxial c-(Ti1-x,Alx)Ny (y = 0.92, 0.79, and0.67) films were grown on MgO(001) and (111) substrates using magnetron putter deposition to examine the details of their defect structures during spinodal decomposition. At 900 ?C, the films decompose to form coherent c-AlN- and c-TiN- rich domains with elongated shape along the elastically soft <001> direction. Deformation maps show that most strains occur near the interface of the segregated domains and inside the c-TiN domains. Dislocations favorably aggregate in c-TiN rather than c-AlN because the later has stronger directionality of covalent chemical bonds. At elevated temperature, the domain size of (001) and (111)- oriented c-(Ti,Al)Ny films increases with the nitrogen content. This indicates that there is a delay in coarsening due to the presence of more N vacancies in the film. The structural and functional properties (Ti1-x,Alx)Ny are also influenced by its Al content (x). TiN and (Ti1-x,Alx)Ny (y = 1, x = 0.63 and x = 0.77) thin films were grown on MgO(111) substrates using magnetron sputtering technique. Both TiN and Ti0.27Al0.63N films are single crystals with cubic structure. (Ti0.23,Al0.77)N film has epitaxial cubic structure only in the first few atomic layers then it transitions to an epitaxial wurtzite layer, with an orientation relationship of c-(Ti0.23,Al0.77)N(111)[1-10]??w-(Ti0.23,Al0.77)N(0001)[11-20]. The w-(Ti0.23,Al0.77)N shows phase separation of coherent nm-sized domains with varying chemical composition during growth. After annealing at high temperature, the domains in w-(Ti0.23,Al0.77)N have coarsened. The domains in w-(Ti0.23,Al0.77)N are smaller compared to the domains in c-(Ti0.27,Al0.63)N film that has undergone spinodal decomposition. The results that emerged from this thesis are of great importance in the cutting tool industry and also in the microelectronics industry, because the layers examined have properties that are well suited for diffusion barriers.
Download or read book Micromachining written by and published by BoD – Books on Demand. This book was released on 2024-05-29 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume, Micromachining - New Trends and Applications, researchers from distant parts of the world have combined efforts and contributed their ideas and research work on micromachining. Their chapters will give you the opportunity to learn about materials, techniques, applications, challenges, and recent advancements in micromachining technology as well as about the state of the current micromachining market. Chapters also discuss concepts of micro-scale electronic component manufacturing, advancements in micromachining techniques of micro-electromechanical system (MEMS) piezoresistive pressure sensors to minimize offset drift due to humidity and temperature, the principles and classifications of force measuring systems with zero-compliance suspension, and triangular microcavity fabrication using micro-electrical discharge machining.
Book Synopsis Hybrid Machining Processes by : Kapil Gupta
Download or read book Hybrid Machining Processes written by Kapil Gupta and published by Springer. This book was released on 2015-11-07 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes various hybrid machining and finishing processes. It gives a critical review of the past work based on them as well as the current trends and research directions. For each hybrid machining process presented, the authors list the method of material removal, machining system, process variables and applications. This book provides a deep understanding of the need, application and mechanism of hybrid machining processes.
Book Synopsis Innovations in Mechanical Engineering by : José Machado
Download or read book Innovations in Mechanical Engineering written by José Machado and published by Springer Nature. This book was released on 2021-06-16 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers a variety of topics in the field of mechanical engineering, with a special focus on methods and technologies for modeling, simulation, and design of mechanical systems. Based on a set of papers presented at the 1st International Conference “Innovation in Engineering”, ICIE, held in Guimarães, Portugal, on June 28–30, 2021, it focuses on innovation in mechanical engineering, spanning from engineering design and testing of medical devices, evaluation of new materials and composites for different industrial applications, fatigue and stress analysis of mechanical structures, and application of new tools such as 3D printing, CAE 3D models, and decision support systems. This book, which belongs to a three-volume set, provides engineering researchers and professionals with extensive and timely information on new technologies and developments in the field of mechanical engineering and materials.
Book Synopsis Microfabrication and Nanofabrication by : Kanak Kalita
Download or read book Microfabrication and Nanofabrication written by Kanak Kalita and published by Walter de Gruyter GmbH & Co KG. This book was released on 2024-06-04 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book unravels the intriguing interplay between macroscopic manufacturing processes and microscopic fabrication techniques. It dives into the sophisticated world of precision manufacturing, where high accuracy, controlled processes enable the production of complex components and products. It covers micro and nano fabrication, which revolutionizes conventional manufacturing by creating minuscule yet highly functional parts, some even smaller than the width of a human hair. This book explores various topics, from precise machining techniques to nanoimprint technology, reflecting the vast breadth and depth of this field. The aim is to provide readers with a comprehensive understanding of how these micro and macro scales intertwine, opening new frontiers in manufacturing. By showcasing the latest research findings and their practical applications, this book elucidates the enormous potential and implications of this burgeoning field. The contents are laid out in a user-friendly manner to communicate complex ideas in an accessible, engaging way, making it a valuable resource for anyone curious about the next big leap in manufacturing technology.
Download or read book NBS Special Publication written by and published by . This book was released on 1976 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air Force Research Resumés written by and published by . This book was released on with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Machine Tool Design and Research by :
Download or read book Advances in Machine Tool Design and Research written by and published by . This book was released on 1970 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modern Optimization Techniques for Advanced Machining by : Imhade P. Okokpujie
Download or read book Modern Optimization Techniques for Advanced Machining written by Imhade P. Okokpujie and published by Springer Nature. This book was released on 2023-07-21 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced manufacturing via computer numerical machining is the art of producing mechanical components employed in aerospace, automobile, and industrial applications where a high level of accuracy is needed. This book focuses on the nano-machining of aluminum alloy and its optimization. The application of aluminum alloy in the manufacturing industry has increased tremendously due to its lightweight to high strength ratio and high-level resistance to corrosion. However, aluminum alloy has some challenges during the machining and manufacturing stage in order to solve real-life manufacturing challenges in advanced machining operation for sustainable production processes. Therefore, it is a need for the implementation of a general algebraic modeling system (GAMS) and other metaheuristic techniques for problem solving and to effectively develop mathematical models for high accuracy prediction and optimization under nano-lubrication machining conditions. This book discusses majorly on the major three responses in machining such as surface roughness, cutting force, and material removal rate, which will give an excellent guide to undergraduate and postgraduate students, senior research fellows in academia, operational, and strategic staff in manufacturing industries.
Book Synopsis Inverse Heat Transfer Problems by : Oleg M. Alifanov
Download or read book Inverse Heat Transfer Problems written by Oleg M. Alifanov and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research monograph presents a systematic treatment of the theory of the propagation of transient electromagnetic fields (such as optical pulses) through dielectric media which exhibit both dispersion a.nd absorption. The work divides naturally into two parts. Part I presents a summary of the fundamental theory of the radiation and propagation of rather general electromagnetic waves in causal, linear media which are homogeneous and isotropic but which otherwise have rather general dispersive and absorbing properties. In Part II, we specialize to the propagation of a plane, transient electromagnetic field in a homogeneous dielectric. Although we have made some contributions to the fundamental theory given in Part I, most of the results of our own research appear in Part II. The purpose of the theory presented in Part II is to predict and to explain in explicit detail the dynamics of the field after it has propagated far enough through the medium to be in the mature-dispersion regime. It is the subject of a classic theory, based on the research conducted by A. Sommerfeld and L.
Book Synopsis Metalworking Fluids by : Jerry P. Byers
Download or read book Metalworking Fluids written by Jerry P. Byers and published by CRC Press. This book was released on 2017-09-18 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revised and expanded Third Edition contains 21 chapters summarizing the latest thinking on various technologies relating to metalworking fluid development, laboratory evaluation, metallurgy, industrial application, fluid maintenance, recycling, waste treatment, health, government regulations, and cost/benefit analysis. All chapters of this uniquely comprehensive reference have been thoroughly updated, and two new chapters on rolling of metal flat sheets and nanoparticle lubricants in metalworking have been added. This must-have book for anyone in the field of metalworking includes new information on chemistries of the most common types of metalworking fluids, advances in recycling of metalworking fluids, and the latest government regulations, including EPA standards, the Globally Harmonized System being implemented for safety data sheets, and REACH legislation in Europe.
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Machining with Nanomaterials by : Mark J. Jackson
Download or read book Machining with Nanomaterials written by Mark J. Jackson and published by Springer. This book was released on 2015-08-20 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the state-of-the-art developments in machining with nanomaterials. Numerous in-depth case studies illustrate the practical use of nanomaterials in industry, including how thin film nanostructures can be applied to solving machining problems and how coatings can improve tool life and reduce machining costs in an environmentally acceptable way. Chapters include discussions on, among other things: Comparisons of re-coated cutting tools and re-ground drills The modeling and machining of medical materials, particularly implants, for optimum biocompatibility including corrosion resistance, bio adhesiveness, and elasticity Recent developments in machining difficult-to-cut materials, as well as machining brittle materials using nanostructured diamond tools Spindle Speed Variation (SSV) for machining chatter suppression Nano grinding with abrasives to produce micro- and nano fluidic devices. The importance of proper design of cutting tools, including milling tools, single point turning tools, and micro cutting tools is reinforced throughout the book. This is an ideal book for engineers in industry, practitioners, students, teachers, and researchers.
Book Synopsis Non-traditional Micromachining Processes by : Golam Kibria
Download or read book Non-traditional Micromachining Processes written by Golam Kibria and published by Springer. This book was released on 2017-03-07 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a complete coverage of micromachining processes from their basic material removal phenomena to past and recent research carried by a number of researchers worldwide. Chapters on effective utilization of material resources, improved efficiency, reliability, durability, and cost effectiveness of the products are presented. This book provides the reader with new and recent developments in the field of micromachining and microfabrication of engineering materials.
Book Synopsis Handbook of Residual Stress and Deformation of Steel by : George E. Totten
Download or read book Handbook of Residual Stress and Deformation of Steel written by George E. Totten and published by ASM International. This book was released on 2002 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Examines the factors that contribute to overall steel deformation problems. The 27 articles address the effect of materials and processing, the measurement and prediction of residual stress and distortion, and residual stress formation in the shaping of materials, during hardening processes, and during manufacturing processes. Some of the topics are the stability and relaxation behavior of macro and micro residual stresses, stress determination in coatings, the effects of process equipment design, the application of metallo- thermo-mechanic to quenching, inducing compressive stresses through controlled shot peening, and the origin and assessment of residual stresses during welding and brazing. Annotation c. Book News, Inc., Portland, OR (booknews.com)
Book Synopsis Advances in Materials Processing by : Yafang Han
Download or read book Advances in Materials Processing written by Yafang Han and published by Springer. This book was released on 2018-04-17 with total page 1274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume gathers selected papers presented at the Chinese Materials Conference 2017 (CMC2017), held in Yinchuan City, Ningxia, China, on July 06-12, 2017. This book covers a wide range of material surface science, advanced preparation and processing technologies of materials, high purity materials, silicon purification technology, solidification science and technology, performance and structure safety of petroleum tubular goods and equipment materials, materials genomes, materials simulation, computation and design. The Chinese Materials Conference (CMC) is the most important serial conference of the Chinese Materials Research Society (C-MRS) and has been held each year since the early 1990s. The 2017 installment included 37 Symposia covering four fields: Advances in energy and environmental materials; High performance structural materials; Fundamental research on materials; and Advanced functional materials. More than 5500 participants attended the congress, and the organizers received more than 700 technical papers. Based on the recommendations of symposium organizers and after peer reviewing, 490 papers have been included in the present proceedings, which showcase the latest original research results in the field of materials, achieved by more than 300 research groups at various universities and research institutes.
