Machine Tool Design and Numerical Control: How N.K. Mehta's Book Can Help You Master the Subject
Machine Tool Design NK Mehta PDF: A Comprehensive Guide
Machine tool design is one of the most important aspects of manufacturing engineering. It deals with the creation, analysis, optimization, and improvement of machines that perform various operations on materials such as cutting, drilling, milling, turning, grinding, etc. Machine tools are essential for producing high-quality products with accuracy, precision, efficiency, productivity, reliability, safety, and economy.
machine tool design nk mehta pdf
One of the most influential authors in this field is Dr. N.K. Mehta, who retired as Professor from IIT Roorkee (former University of Roorkee) in 2010 after serving in the Department of Mechanical and Industrial Engineering for almost 40 years. He has done extensive research in the areas of Machine Tool Design, Machining Science, and Computer Aided Manufacturing. He has more than 120 research papers to his credit and has supervised 12 PhD Thesis and over 50 M Tech dissertations. He has also translated nine text books and monographs in English from Russian.
His book Machine Tool Design and Numerical Control is a comprehensive textbook that covers all aspects of machine tool design from basic concepts to advanced topics. It is suitable for undergraduate and postgraduate students as well as practicing engineers who want to learn more about this fascinating subject. The book has been revised and updated several times since its first edition in 1984. The latest edition (third edition) was published by Tata McGraw Hill Education Private Limited in 2012.
In this article, we will provide an overview of the book's contents, structure, features, benefits, and drawbacks. We will also answer some frequently asked questions about machine tool design nk mehta pdf. By reading this article, you will gain a better understanding of what this book offers and how it can help you improve your knowledge and skills in machine tool design.
Machine Tool Design: Basic Concepts
The first chapter of the book introduces the fundamental concepts of machine tool design. It defines what a machine tool is, what its main functions are, how it differs from other machines, what its components are, how it works, etc. It also explains why machine tool design is important for achieving various objectives such as accuracy, productivity, reliability, safety, economy, etc.
The chapter then discusses the basic elements of machine tool design such as kinematic chains, mechanisms, structures, guideways, spindles, bearings, drives, control systems, etc. It describes their functions, classifications, characteristics, advantages, disadvantages, etc. It also outlines the general design criteria and considerations for each element such as dimensions, materials, shapes, stresses, strains, forces, torques, speeds, feeds, power, efficiency, stiffness, rigidity, stability, damping, lubrication, cooling, etc.
Machine Tool Design: Kinematics and Dynamics
The second chapter of the book deals with the kinematics and dynamics of machine tools. Kinematics is the study of motion without considering its causes or effects. Dynamics is the study of motion considering its causes (forces) or effects (energy). Both kinematics and dynamics play a vital role in determining the performance, quality, and behavior of machine tools.
The chapter first explains what kinematics is, how it applies to machine tool design, and what its basic principles are. It then describes the types of kinematic chains and mechanisms used in machine tools such as four-bar linkages, cams, gears, belts, chains, screws, racks, pinions, etc. It also shows how to analyze and synthesize these kinematic chains and mechanisms using graphical, analytical, and numerical methods.
The chapter then explains what dynamics is, how it affects machine tool performance, and what its basic principles are. It then discusses the sources and effects of vibrations in machine tools such as unbalance forces, cutting forces, friction forces, impact forces, etc. It also shows how to model, measure, and reduce these vibrations using mathematical equations, experimental techniques, and damping devices.
Machine Tool Design: Structures and Guideways
The third chapter of the book deals with the structures and guideways of machine tools. Structures are the rigid frames or bodies that support the other components of machine tools such as spindles, guideways, drives, control systems, etc. Guideways are the surfaces or elements that guide the relative motion between two parts of a machine tool such as table-slide, carriage-bed, tool-workpiece, etc.
The chapter first explains what structures are, what their functions and requirements are, how they differ from other structures such as bridges or buildings, etc. It then describes the materials and methods of fabrication of machine tool structures such as cast iron, steel alloys, welding techniques, machining processes, etc. It also discusses the factors that affect the strength, stiffness, stability, and rigidity of machine tool structures such as geometry, loading conditions, boundary conditions, temperature variations,