Optical glass fabrication technology. 2: Relationship between surface roughness and subsurface damage

Journal Article · Sat Oct 31 23:00:00 EST 1987 · Appl. Opt.; (United States)

DOI:https://doi.org/10.1364/AO.26.004677· OSTI ID:6046576

Hed, P P; Edwards, D F

For glass grinding conditions where fracture is the principal mechanism, a constancy is found between the depths of surface roughness and subsurface damage. For a range of experimental conditions we find the ratio of subsurface damage to surface roughness to be 6.2--6.4 for bound diamond abrasive grinding. This is larger than the value reported for loose abrasive grinding (3.7--4.0). The constancy of this value has great practical importance. From a measurement of the surface roughness one can obtain an accurate estimate of the damage layer thickness that must be eliminated by polishing or subsequent grinding operations.

• Research Organization: Lawrence Livermore National Laboratory, Materials Fabrication Division, P.O. Box 808, Livermore, California 94550
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6046576
• Journal Information: Appl. Opt.; (United States), Journal Name: Appl. Opt.; (United States) Vol. 26:21; ISSN APOPA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
ABRASIVES
COMMINUTION
CORRELATIONS
DAMAGE
FABRICATION
GLASS
GRINDING
LAWRENCE LIVERMORE LABORATORY
MACHINING
MECHANICAL POLISHING
NATIONAL ORGANIZATIONS
POLISHING
ROUGHNESS
SAMPLE PREPARATION
SURFACE FINISHING
SURFACE PROPERTIES
US AEC
US DOE
US ERDA
US ORGANIZATIONS