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Introduction to Mechanical Micro Machining

Indian Institute of Technology, Kharagpur via NPTEL

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Overview

The emergence of miniature and micro products / components has increased the demand of the production of micro components with feature size from a few millimeters to tens of micrometers. Mechanical micro machining is one of the key technologies to enable the realization of high accuracy complex micro products made from a variety of engineering materials. Mechanical micro machining is capable to machine metals, polymers, and ceramics in very less time as compared to lithographic processes and other micro machining processes such as EDM, ECM, LBM, etc. As a result, it has found strong base in a wide array of practical applications.

Though the machine for micro cuttings are kinematically similar to conventional machines, there are many differences in terms of process mechanics, machine components, etc. Hence, understanding of machining at micro scale is very important to process any material to the desired dimensions.

Syllabus

Week 1: Experimental observations and theoretical prediction of constituents of an atom

Week 2: Scaling law

Week 3: Mechanical micro machining (process, mechanism)

Week 4: Burr formation, surface roughness, built up edge

Week 5: Cutting fluid, run out, grain size

Week 6: Micro machine structure - I

Week 7: Micro machine structure - II

Week 8: Fabrication of micro cutting tools

Week 9: Miniature machine tools

Week 10: Diamond Turning (process, types, mechanism, applications)

Week 11:Metrology for micro machining

Week 12: Sensor integration for process monitoring

Taught by

Ajay M Sidpara

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