Abstract:

The surface integrity created by creep feed grindings （CFG） of diffcult-to-machine materials was investigated systematically with X-ray instrument, microhardomter, Auger electronic spectroscope （AES）, scanning electronic microscope （SEM） and metalloscope.The surface roughness, strain hardening, residual stress and its distribution,distribution of the chemical elements in surface layer and the fatigue properties of specimens are discussed.The experiments indicated that the surface integrity created by CFG is better than those by milling and conventional grinding, and gives promise of good application prospects for creep feed grinding.

Key words: surface integrity, grinding, creep feed grinding