Induction Heat Assisted End Milling of Inconel 718 and Ti6Al4V Alloys PDF Download
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Author: A.K.M. Nurul Amin
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659439933
Category :
Languages : en
Pages : 196
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Book Description
Inconel 718 is the most widely used in the aerospace industries, especially for gas turbine hot section components. Titanium alloys, on the other hand, have very high strength-to-weight ratio making them very suitable for aircraft engines and airframe manufacture. They account for 30% of the total engine mass in commercial and 40% in military projects. However, both these strategic materials have poor machinability, as a result of which they have dominated the major research interests in metal cutting industries in the past decades. One of the techniques to improve machinability is the use an external heat source during machining. LAM applications offered significantly lower cutting force, higher metal removal rate and smoother surface finish, however, high costs of lasers slowed down its implementation. A new approach is heat assisted machining using inducting heating suitable for end milling operation. This book reports a comparative analysis of machinability of these two very strategic materials and their behavior to induction heat assisted machining in terms of tool wear, cutting forces, surface roughness and vibration/chatter.
Author: A.K.M. Nurul Amin
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659439933
Category :
Languages : en
Pages : 196
Get Book Here
Book Description
Inconel 718 is the most widely used in the aerospace industries, especially for gas turbine hot section components. Titanium alloys, on the other hand, have very high strength-to-weight ratio making them very suitable for aircraft engines and airframe manufacture. They account for 30% of the total engine mass in commercial and 40% in military projects. However, both these strategic materials have poor machinability, as a result of which they have dominated the major research interests in metal cutting industries in the past decades. One of the techniques to improve machinability is the use an external heat source during machining. LAM applications offered significantly lower cutting force, higher metal removal rate and smoother surface finish, however, high costs of lasers slowed down its implementation. A new approach is heat assisted machining using inducting heating suitable for end milling operation. This book reports a comparative analysis of machinability of these two very strategic materials and their behavior to induction heat assisted machining in terms of tool wear, cutting forces, surface roughness and vibration/chatter.
Author: Kapil Gupta
Publisher: Springer
ISBN: 3319560999
Category : Technology & Engineering
Languages : en
Pages : 294
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Book Description
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.
Author: J. Paulo Davim
Publisher: Springer
ISBN: 3319784889
Category : Technology & Engineering
Languages : en
Pages : 372
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Book Description
This textbook fosters information exchange and discussion on all aspects of introductory matters of modern mechanical engineering from a number of perspectives including: mechanical engineering as a profession, materials and manufacturing processes, machining and machine tools, tribology and surface engineering, solid mechanics, applied and computational mechanics, mechanical design, mechatronics and robotics, fluid mechanics and heat transfer, renewable energies, biomechanics, nanoengineering and nanomechanics. At the end of each chapter, a list of 10 questions (and answers) is provided.
Author: Luis Norberto L´opez de Lacalle
Publisher: MDPI
ISBN: 3039213776
Category : Technology & Engineering
Languages : en
Pages : 554
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Book Description
The Special Issue Machining—Recent Advances, Applications and Challenges is intended as a humble collection of some of the hottest topics in machining. The manufacturing industry is a varying and challenging environment where new advances emerge from one day to another. In recent years, new manufacturing procedures have retained increasing attention from the industrial and scientific community. However, machining still remains the key operation to achieve high productivity and precision for high-added value parts. Continuous research is performed, and new ideas are constantly considered. This Special Issue summarizes selected high-quality papers which were submitted, peer-reviewed, and recommended by experts. It covers some (but not only) of the following topics: High performance operations for difficult-to-cut alloys, wrought and cast materials, light alloys, ceramics, etc.; Cutting tools, grades, substrates and coatings. Wear damage; Advanced cooling in machining: Minimum quantity of lubricant, dry or cryogenics; Modelling, focused on the reduction of risks, the process outcome, and to maintain surface integrity; Vibration problems in machines: Active and passive/predictive methods, sources, diagnosis and avoidance; Influence of machining in new concepts of machine–tool, and machine static and dynamic behaviors; Machinability of new composites, brittle and emerging materials; Assisted machining processes by high-pressure, laser, US, and others; Introduction of new analytics and decision making into machining programming. We wish to thank the reviewers and staff from Materials for their comments, advice, suggestions and invaluable support during the development of this Special Issue.
Author: Mohammad Istiyaq Hossain
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 420
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Book Description
Aerospace alloys such as nickel based superalloy Inconel 718 as well as titanium based T1-6A1-4V are generally regarded as difficult to cut materials. Numerous research works have been conducted on their machinability in the past few decades with the main objective of reducing cost of machining. Though classified as "difficult-to-cut" materials, they are attractive materials due to their high strength, which is maintained up to elevated temperatures and their exceptional corrosion resistance. Induction preheating is one of the new variable parameters to improve the machinability of Inconel 718 and Ti-6A1-4V. In the current work the influence of heating parameter i.e. preheating temperature; cutting variable, such as cutting speed, feed and axial depth of cut were investigated during end milling operation on a CNC Vertical Machining Center (VMC). The inserts used were TiAIN coated carbide filled onto a 20 mm diameter end mill tool. The machining experiments were conducted under room temperature and preheated conditions. Response Surface Methodology (RSM) was used to develop empirical models of tool life, cutting force and surface roughness both for room temperature and preheated machining conditions using the data generated from the machining experiments. The developed RSM models for tool life were further coupled with Genetic Algorithm (GA) to maximise metal removal per tool life by optimising the cutting conditions and preheating temperature. The comparison between room temperature and preheated machining were made in terms of tool life, cutting force, surface roughness and machine tool vibration. It was found that preheating had reduced the tool wear, surface roughness, vibration/chatter amplitudes and chip formation stability to a desired level.
Author: Chukwujekwu Ikwy Nnadi
Publisher:
ISBN:
Category :
Languages : en
Pages : 167
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Book Description
"This thesis presents the results of the experimental investigation of the effects of machining parameters (spindle speed and feedrate) and cooling strategies [Minimum Quantity Lubrication (MQL), Cryogenic Liquid Nitrogen (LN2), and combined (MQL+LN2)] on cutting force components, cutting temperature, tool wear and surface roughness during high-speed slot end-milling of Inconel 718 alloy. In addition, a comparative evaluation of the three cooling strategies was conducted for cutting force components, surface roughness and residual stresses. All end-milling experiments were conducted on a Cincinnati Milacron Vertical Machining center (VMC), using a 0.5 inch (12.7 mm) diameter, 0.03 inch (0.762 mm) corner radius four-flute uncoated carbide end-mill. A one-third fractional factorial design of experiments was constructed (nine experimental runs) and used in analyzing all experimental results. Cutting force components were acquired using a Kistler type 9272 4-component dynamometer, which was connected to an amplifier and a junction box. Cutting temperature was measured using a 0.125 inch (3.175 mm) diameter ungrounded k-type thermocouple, while tool wear was investigated indirectly by analyzing the maximum cutting force components of the last two passes (19 and 20). Surface roughness and residual stresses were measured using a profilometer and X-ray diffraction respectively. The results showed that high spindle speed (750 rpm) and medium feed rate (2 ipm) gave the lowest cutting force components, while low spindle speed (250 rpm) gave the lowest cutting temperature and tool wear. Furthermore, a low spindle speed (250 rpm) and feed rate (1 ipm) gave the least surface roughness, while MQL cooling strategy induced the highest compressive stresses"--Abstract, page iv.
Author:
Publisher: Newnes
ISBN: 0080965334
Category : Technology & Engineering
Languages : en
Pages : 5485
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Book Description
Comprehensive Materials Processing, Thirteen Volume Set provides students and professionals with a one-stop resource consolidating and enhancing the literature of the materials processing and manufacturing universe. It provides authoritative analysis of all processes, technologies, and techniques for converting industrial materials from a raw state into finished parts or products. Assisting scientists and engineers in the selection, design, and use of materials, whether in the lab or in industry, it matches the adaptive complexity of emergent materials and processing technologies. Extensive traditional article-level academic discussion of core theories and applications is supplemented by applied case studies and advanced multimedia features. Coverage encompasses the general categories of solidification, powder, deposition, and deformation processing, and includes discussion on plant and tool design, analysis and characterization of processing techniques, high-temperatures studies, and the influence of process scale on component characteristics and behavior. Authored and reviewed by world-class academic and industrial specialists in each subject field Practical tools such as integrated case studies, user-defined process schemata, and multimedia modeling and functionality Maximizes research efficiency by collating the most important and established information in one place with integrated applets linking to relevant outside sources
Author: Lu Zheng
Publisher: John Wiley & Sons
ISBN: 1119506352
Category : Science
Languages : en
Pages : 210
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Book Description
The first book to comprehensively address the theory, kinematic modelling, numerical simulation and applications of vibration assisted machining Vibration Assisted Machining: Theory, Modelling and Applications covers all key aspects of vibration assisted machining, including cutting kinematics and dynamics, the effect of workpiece materials and wear of cutting tools. It also addresses practical applications for these techniques. Case studies provide detailed guidance on the design, modeling and testing of VAM systems. Experimental machining methods are also included, alongside considerations of state-of-the-art research developments on cutting force modeling and surface texture generation. Advances in computational modelling, surface metrology and manufacturing science over the past few decades have led to tremendous benefits for industry. This is the first comprehensive book dedicated to design, modelling, simulation and integration of vibration assisted machining system and processes, enabling wider industrial application of the technology. This book enables engineering students and professionals in manufacturing to understand and implement the latest vibration assisted machining techniques. Highlights include: Comprehensive coverage of the theory, kinematics modelling, numerical simulation and applications of vibration assisted machining (VAM) Case studies with detailed guidance on design, modelling and testing of VAM systems, as well as experimental machining methods Discussion of state-of-the-art research developments on cutting force modelling and surface texture generation Coverage of the history of VAM, its current applications and future directions for the technology Vibration Assisted Machining: Theory, Modelling and Applications provides engineering students, researchers, manufacturing engineers, production supervisors, tooling engineers, planning and application engineers and machine tool designers with the fundamentals of vibration assisted machining, along with methodologies for developing and implementing the technology to solve practical industry problems.
Author: M. S. Shunmugam
Publisher: Springer Nature
ISBN: 9813294256
Category : Technology & Engineering
Languages : en
Pages : 720
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Book Description
This volume presents research papers on micro and nano manufacturing and surface engineering which were presented during the 7th International and 28th All India Manufacturing Technology, Design and Research conference 2018 (AIMTDR 2018). The papers discuss the latest advances in miniature manufacturing, the machining of miniature components and features as well as improvement of surface properties. This volume will be of interest to academicians, researchers, and practicing engineers alike.
Author: Matthew J. Donachie
Publisher: ASM International
ISBN: 161503062X
Category : Technology & Engineering
Languages : en
Pages : 381
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Book Description
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.
