Skip to main content
Article thumbnail
Location of Repository

Electrolytic in-process dressing superfinishing of spherical bearings using metal-resin bond ultra-fine CBN wheels

By Mark H. Raffles, David J. Stephenson, Paul Shore and T. Jin


The use of electrolytic in-process dressing (ELID) superfinishing has been investigated with the aim of substantially improving surface finish on spherical bearing balls as well as reducing process times. Using ELID in a superfinishing configuration is substantially different from the more conventional precision grinding set-up. With this ELID superfinishing system, metal-resin bonded (MRB) wheels containing very small superabrasives (30 to 0.12 μm) were employed. Surface finishes of 2 nm Ra were achieved with a #12 000 wheel, an order of magnitude better than balls produced using the conventional production techniques of barrelling or polishing. Consistently sub-10 nm Ra finishes were achieved with a #2000 wheel. Different ways of using the ELID system, including ELID 1, ELID 2, and ELID 3, were studied to examine how the different types control the cutting condition at the wheel's surface. It is the ability to control easily the cutting condition of superabrasives of this size that allows mirror surface finishes to be efficiently produced. Monitoring of wheel spindle and ELID power usage was found to provide useful information in assessing the wheel

Publisher: Professional Engineering Publishing
Year: 2011
DOI identifier: 10.1243/09544054JEM2003
OAI identifier:
Provided by: Cranfield CERES

Suggested articles


  1. (2002). A fundamental study on the mechanism of electrolytic in-process dressing (ELID) grinding. doi
  2. (2005). ELID grinding and micro-machining processes – tutorial notes (unpublished).
  3. (2004). Investigation of pre-dressing time for ELID grinding technique. doi
  4. (2003). Nano finish grinding of brittle materials using electrolytic in-process dressing (ELID) technique. Sadhana – Acad. doi
  5. Simulation and analysis of rigid/foil electrolytic in-process dressing doi

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.