Development of grinding models for brittle materials

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:535584

Sharp, K; Scattergood, R O ^[1]

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1. North Carolina State Univ., Raleigh, NC (United States)

The fracture mechanics used to predict subsurface damage during machining requires knowledge of the depth of cut of the tool. For brittle materials, analysis shows that there will be ductile response for cutting depths below a critical value and brittle response for depths above this value. Finding the depth of cut is relatively straightforward for single-point machining such as diamond turning, but much more difficult for the large number of randomly arranged grains involved in grinding. The aim of this research is to develop models for the statistical effects of multiple cutting grains. The key issue for the models is to derive the grain depth-of-cut for a distribution of cutting grains and specified operating conditions. In order to simplify the development work, plunge grinding (no cross feed) is being used for the prototype geometry.

• OSTI ID: 535584
• Report Number(s): CONF-961111--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BRITTLENESS
COMPUTERIZED SIMULATION
GRINDING
MATERIALS