Surface stresses of mixed-mode grinding materials on borosilicate glass

James B. Johnson, Robert E. Parks, James H. Burge

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Mixed-mode grinding occurs when a bound abrasive works in both brittle and ductile regimes simultaneously. Substrates ground in a mixed-mode behavior show reduced curvature induced by compressive surface forces than loose abrasives as demonstrated by observing the Twyman effect. This reduction in bending corresponds to reduced subsurface damage. This is verified by controlled acid etching, which shows the exponential decay of the compressive force per unit length. Loose abrasive particles, added to maintain pad wear due to low pressures, have no effect on the measured stresses. If loose abrasive wear ceases, the pads glaze. Glazing creates near-specular surfaces while reducing measurable stress. These effects for borosilicate glass and Trizact grinding pads are explored and quantified.

Original languageEnglish (US)
Pages (from-to)4151-4156
Number of pages6
JournalApplied optics
Volume51
Issue number18
DOIs
StatePublished - Jun 20 2012

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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