Understanding the Deformation and Material Removal Mechanisms of Particulate-reinforced Metal Matrix Composites Subjected to Machining PDF Download
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Author: Alokesh Pramanik
Publisher:
ISBN:
Category : Metallic composites
Languages : en
Pages : 408
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Book Description
Author: Alokesh Pramanik
Publisher:
ISBN:
Category : Metallic composites
Languages : en
Pages : 408
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Book Description
Author: J. Paulo Davim
Publisher: Springer Science & Business Media
ISBN: 0857299387
Category : Technology & Engineering
Languages : en
Pages : 170
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Book Description
Machining of Metal Matrix Composites provides the fundamentals and recent advances in the study of machining of metal matrix composites (MMCs). Each chapter is written by an international expert in this important field of research. Machining of Metal Matrix Composites gives the reader information on machining of MMCs with a special emphasis on aluminium matrix composites. Chapter 1 provides the mechanics and modelling of chip formation for traditional machining processes. Chapter 2 is dedicated to surface integrity when machining MMCs. Chapter 3 describes the machinability aspects of MMCs. Chapter 4 contains information on traditional machining processes and Chapter 5 is dedicated to the grinding of MMCs. Chapter 6 describes the dry cutting of MMCs with SiC particulate reinforcement. Finally, Chapter 7 is dedicated to computational methods and optimization in the machining of MMCs. Machining of Metal Matrix Composites can serve as a useful reference for academics, manufacturing and materials researchers, manufacturing and mechanical engineers, and professionals involved with MMC applications. It can also be used to teach modern manufacturing engineering or as a textbook for advanced undergraduate and postgraduate engineering courses in machining, manufacturing or materials.
Author: J. Paulo Davim
Publisher: John Wiley & Sons
ISBN: 1118875141
Category : Technology & Engineering
Languages : en
Pages : 262
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Book Description
In recent years, the application of composite materials hasincreased in various areas of science and technology due to theirspecial properties, namely for use in the aircraft, automotive,defence, aerospace and other advanced industries. Machiningcomposite materials is quite a complex task owing to itsheterogenity, and to the fact that reinforcements are extremelyabrasive. In modern engineering, high demands are placed oncomponents made of composites in relation to their dimensionalprecision as well as their surface quality. Due to these potentialapplications, there is a great need to understand the questionsassociated with machining composite materials. This book aims to provide the fundamentals and the recentadvances in the machining of composite materials (polymers, metalsand ceramics) for modern manufacturing engineering. The three partsof the book cover the machining of polymeric, metal and ceramicmatrix composites. This book can be used as a text book for the final year of anundergraduate engineering course or for those studyingmachining/composites at the postgraduate level. It can also serveas a useful work of reference for academics, manufacturing andmaterials researchers, manufacturing and mechanical engineers, andprofessionals in composite technology and related industries.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 6
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Book Description
Metals reinforced with ceramic fibers or particulates are promising materials for use in new generations of aerospace structures, propulsion devices and energy conversion systems. Furthermore, the controllability of many of these variables opens up the possibility of engineering materials for specific applications, if the effects of alterations in microstructure can be predicted. However, metal-matrix composites often have low ductility and low fracture toughness. An improved understanding of the basic deformation and failure mechanisms is needed to overcome these problems. To this end, research was carried out in three areas: (1) continuum modeling of deformation and fracture in metal-matrix composites, including the interaction between failure mechanisms using phenomenological constitutive relations to characterize each of the main failure modes in metal-matrix composites, reinforcement cracking, interfacial debonding and matrix void nucleation, growth and coalescence; (2) numerical studies of the propagation of fast cracks along and across interfaces, with a particular focus on understanding crack propagation from a brittle phase into a ductile phase; and (3) discrete dislocation modeling of matrix plastic deformation in metal-matrix composites with micron size reinforcements.
Author: Dzu-gwang Charles Syu
Publisher:
ISBN:
Category :
Languages : en
Pages : 462
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Book Description
Author: Nishita Anandan
Publisher:
ISBN:
Category : Aluminum-silicon alloys
Languages : en
Pages : 792
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Book Description
In recent years there has been growing interest in developing metal matrix composites, owing to their superior mechanical properties that can be tailored based on requirements. However, the reinforcement particles that strengthen the composite also lead to poor machinability. Often, these reinforcement particles are harder than the cutting tool material causing rapid tool wear which in turn, results in poor surface quality. Therefore, in order to avail the outstanding potential of metal matrix composites for structural components, it is imperative to study their machinability and fatigue performance. Specifically, in this study, the machinability and surface integrity of functionally gradient SiCp/Al and SiCp/Mg were investigated through peripheral milling process. The functionally gradient aluminum composites are typically used in disk brake applications that require gradient mechanical properties along the radius, while uniformly reinforced magnesium composites are finding applications in the aerospace and biomedical industries. The cutting forces, acoustic emissions, tool wear, and surface quality generated were analyzed as a function of feed rate and spindle speed. Statistical design of experiments approach was used, and the analysis of variance was performed to identify the significant parameters for these responses. Feed rate was observed to be the dominant parameter for both types of composites. The surface integrity of the machined composite was evaluated through fatigue performance of milled coupons. The machining induced damage was found to have a significant effect on the fatigue life. In addition to the surface roughness parameters, the interaction between the reinforcement particles and the cutting edge were observed through SEM micrographs of the machined surface. Particle fracture, matrix cracking, voids due to particle debonding and particles pushed into the matrix were observed on the machined surface. The presence of voids and cracks resulted in poor surface finish and fatigue life. Further, the events identified through SEM micrographs of the machined surface were used to develop a physics-based model to predict cutting forces in the peripheral milling of metal matrix composites. Three major events were considered, occurrence of particle fracture, plastic deformation of the metallic matrix and particles debonding due to mismatch in coefficient of thermal expansion. The probability of these events was calculated based on particle concentration and size in the matrix and was used to evaluate the contribution of each event to the total force experienced by the cutting edge. The predicted forces were in good agreement with the measured forces for lower feed rates from 0.1 to 0.765 mm/rev. A major contribution of this study is to identify the effect of the presence of hard reinforcement particles dispersed in a ductile matrix in an intermittent cutting process like milling. Although, machinability of metal matrix composites has been studied for continuous cutting process like turning, the effect of repeated impact of cutting edge on the composite has not been reported extensively. In addition to the analysis of signals obtained during milling, a simple quantification technique was developed to measure the tool wear along the helical cutting edge using optical micrographs and adaptive thresholding technique. The cutting mechanism and machining induced surface defects were identified, and these observations were used to develop a physics-based model to predict the cutting forces generated based on the probability of each event. Although secondary manufacturing processes like machining were found to have a significant effect on the fatigue life of composites, only the effects of primary manufacturing processes have been reported in the literature. In this study, the effect of machining induced surface damages was further investigated by evaluating the sub-surface damage and its effect on fatigue performance. Additionally, the fatigue crack initiation and propagation mechanism through the reinforcement particles, ductile matrix and particle-matrix interface has been investigated.
Author: Islam Shyha
Publisher: Springer Nature
ISBN: 3030714381
Category : Technology & Engineering
Languages : en
Pages : 547
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Book Description
This book covers a wide range of conventional and non-conventional machining processes of various composite materials, including polymer and metallic-based composites, nanostructured composites and green/natural composites. It presents state-of-the-art academic work and industrial developments in material fabrication, machining, modelling and applications, together with current practices and requirements for producing high-quality composite components. There are also dedicated chapters on physical properties and fabrication techniques of different composite material groups. The book also has chapters on health and safety considerations when machining composite materials and recycling composite materials. The contributors present machining composite materials in terms of operating conditions; cutting tools; appropriate machines; and typical damage patterns following machining operations. This book serves as a useful reference for manufacturing engineers, production supervisors, tooling engineers, planning and application engineers, and machine tool designers. It can also benefit final-year undergraduate and postgraduate students, as it provides comprehensive information on the machining of composite materials to produce high-quality final components. The book chapters were authored by experienced academics and researchers from four continents and nine countries including Canada, China, Egypt, India, Malaysia, Portugal, Singapore, United Kingdom and the USA.
Author: Kevin Blair Lease
Publisher:
ISBN:
Category :
Languages : en
Pages : 328
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Book Description
Author:
Publisher:
ISBN:
Category : Metallurgy
Languages : en
Pages : 1176
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Book Description
Author: Jinmin Zhang
Publisher:
ISBN:
Category :
Languages : en
Pages : 444
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Book Description
