A STUDY ON THE EFFECTS OF VIBRATIONS ON THE SURFACE FINISH USING A SURFACE-TOPOGRAPHY SIMULATION-MODEL FOR TURNING

In this paper, a surface topography simulation model is established to simulate the surface finish profile generated after a turning operati on. The surface topography simulation model incorporates the effects o f the relative motion between the cutting tool and the workpiece with the effects of tool geometry to simulate the resultant surface geometr y. It is experimentally shown that the surface topography simulation m odel can properly simulate the surface profile generated by turning op erations. The surface topography simulation model is used to study the effects of vibrations on the surface finish profile. It is found that the vibration frequency ratio is a more important vibration parameter than the vibration frequency on the characterization of the surface f inish profile. The vibration frequency ratio is the ratio between the vibration frequency and the spindle rotational speed. (C) 1998 Elsevie r Science Ltd. All rights reserved.