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Indian Institute of Technology (IIT) Roorkee 
A hydrogel based abrasive media for abrasive flow machining and process of preparation thereof 
Varun Sharma, Pradeep Kumar and Nitin Dixit 
Indian Institute of Technology (IIT) Roorkee 
Application type:
Applied - 2020-01-10 
Application Number:
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Indian Institute of Technology (IIT) Roorkee 
The present invention provides a hydrogel based abrasive media for abrasive flow machining and method of preparation. The media is bio-degradable and doesn’t require any heating of polymer. The preparation of hydrogel requires a mixing mechanism. The same mechanism is used for mixing abrasives to the 20 developed hydrogel. There is no release of toxic fumes during preparation of hydrogel based abrasive media. The removal of blunt or worn-out abrasives can also be achieved by simply washing the abrasive laden media. The processing of hydrogel based media is performed at room temperature and the preparation time of hydrogel based media is also less as compared to conventional media. Therefore, 25 its preparation process is advantageous from safety point of view. 

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