Page 19 - AMTDC Annual Report 2019-20flipbook

The fully automated grinder-cum-polisher as
developed has four grinding/ polishing stations plus one
ultra-sound cleaning and drying station that are installed
in the machine’s sturdy mild steel housing of dimension
830 × 3000 × 1580 mm. An automatic 5-level foil stacker Automation in
cum foil changing unit is in-built in the system.
The machine holds features like uniform Metallographic Sample
application of load across the whole specimen surface, Preparation: A Faster &
correct positioning and holding of the samples, storing
multiple foils, fixed time of polishing and suitably Better Solution
changing various grades of foils, etc.
Touch-screen-controls facilitate up to 10 different The current project is intended to
operations to be sequenced for a particular application. design and develop a fully automated
The various options include pre-grinding, grinding and multi-station grinding and polishing
polishing as well as ultrasonic cleaning and drying using machine along with automatic foil
warm-air dryer with timer. This automated grinding and changing unit that can generate specimen
polishing machine automatically proceeds from one with a flatness of about 5µm repeatedly
step to the next, eliminating the manual, time- with consistency of planarity in all of 6
consuming task of cleaning, re-fixing of sample, etc., specimens simultaneously.
between steps, and hence is capable of completely
automating the grinding and polishing aspects.

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AMTDC Annual Report | 2019-20