Machining is a metal removal process, which can be accomplished by applying force on raw material by means of a cutting tool. This course aims at explaining the physics of the cutting process. The course will contain discussion of statics, kinematics and kinetics of the cutting process. Experimental findings relevant to mechanics of the process will also be discussed. The course will also include introductory discussion on non-traditional machining processes.
INTENDED AUDIENCE : UG and PG students of Mechanical/Production/Manufacturing PREREQUISITES : Strength/Mechanics of Material and Materials Science at UG levelINDUSTRY SUPPORT : Bharat Heavy Electricals Limited (BHEL), Hindustan Aeronautics Limited (HAL), Defense Research and Development Organization (DRDO), Die manufacturing industries, Automobile Industries, Machine Tool Industries, Precision medical equipment manufacturing industries.
Week 1: Deformation of metals,Mechanism of plastic deformation,Machining processes: Single edge tool,types of chips Week 2: Tool geometry: single point cutting tool specifications Tool specifications, conversion of tool angles, Multi-point cutting tools Mechanics of orthogonal cutting, force relationshipsWeek 3: Determination of stress, strain, and strain rate Measurement of shear angle Other analysis for force relationshipsWeek 4: Mechanics of oblique cutting Measurement of cutting forcesWeek 5: Thermal aspects of machining: Temperatures in orthogonal cutting Tool wear and tool life and tool life equations Economics in machining Week 6: Practical machining operations: Turning and shaping & planning operation Practical machining operations: milling and drilling Grinding of metals and mechanics of grinding process Week 7: Abrasive machining and finishing operations CNC machines and CNC programming Week 8: Introduction to advanced machining processes