An Abrasive Flow Finishing Device, an Abrasive Flow Finishing Process and Magnetorheological Polishing Fluid

Patent Status: 

Patent Filed

Indian Patent Applicaton No: 

1991/DEL/2005

Grant: 

255847

Date Filed: 

27.07.2005

Date Granted: 

26.03.2013

Patent Category: 

Overview: 

The newly developed process was named as "Magnetorheological Abrasive Flow Finishing (MRAFF)" which maintains the versatility of AFM process and at the same time introduces determinism and in-process controllability of rheological properties of abrasive laden medium ofMRF, to give nano level surface finish on 3-D complex surfaces.

Key Features: 

  • In-house, synthesis of the magnetorheological polishing fluid.
  • Initial surface roughness 280 nm has been brought down to 100 nm.

Applications: 

  • Complex shaped 3-D components, cylindrical internal and external surfaces, miniature holes and micro channels, etc.

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