This sixth edition of the book has been specifically designed to meet the necessary requirement of a comprehensive textbook for the students studying in UG and PG courses in various disciplines, namely mechanical, production and manufacturing engineering at various universities, engineering colleges, NIT and IIT. Since the book includes the uptodate information in regard to systematic developments, current researches and futuristic challenges in the major areas of machine tool design and manufacturing, it may be regarded as an essential reference book for designers and practising engineers. While writing this book, the authors have taken due cognizance of the syllabi of the subject the various universities and Institutes.
The book starts with the discussion of forces and power consumption of various types of tool, so essential a step for starting the process of machine tool design. In the chapters on Kinematics of stepped as well as stepless speeds, an additional stepless drive using semi torrodial variator has been added. Essentials of designing, based on tribological considerations, namely wear, friction and lubrication behaviors have been covered in details. The detailed mathematical method for analyzing the uniform distribution of loads among the mating threads of screw nut assemblies under sliding as well rolling has been included in the chapter on power screw assemblies. The elimination of backlash, static and dynamic rigidity, as well as influence of vibrations of machine tools have been examined in-depth, controlling systems of machine tools, including electrical, hydraulic, programme as well as "built-in" inspection units, vibration analysis and microdisplacement have been dealt with clarity. NC, CNC machines, flexible manufacturing system, robotics and their applications as a part of current technology are also included in this current edition. The authors have added chapters on reliability evaluation of machine tool elements and non-uniform microdisplacement.
In the chapter on NC, CNC machines, the authors have discussed the comparative merits and demerits of Binary Coded and Grey Coded Discs used as slotted disc encoders. For the benefits of teachers and students, the authors considered it essential to add a chapter containing some probable questions and their methods of solutions.
S.K. BASU Professor Emeritus, Dept. of Production Engineering Govt. College of Engineering, Pune; Formerly, Director, Central Mechanical Engineering Research Institute, Durgapur; Professor, Production Engineering Department; Jadavpur University; Head, Mechanical Engineering Department; R.E. College, Durgapur D.K. PAL Formerly, Professor, Mechanical Engineering Department Regional Engineering College, Durgapur
