Abstract
The purpose of the paper is to establish a relationship between the vibration marks generated on the work-piece periphery and the rigidities of the grinding wheel-workpiece-grinding machine systems. To investigate the problem several static and dynamic methods of determining the rigidity are analysed. Based on experimental results the grinding machine is assumed to consist of two separate sub-systems: the wheel-head-body system and the workpiece holding system, both coupled together by the grinding wheel. To check the correlation between various methods of determining rigidity, differential equations of motion have been introduced and solved with the aid of a digital computer. In order to consider all forces taking part during grinding an effective force factor has been analytically defined and applied to determine the rigidities. To find the relationship between rigidity established in static conditions and during grinding, coefficients of static and dynamic rigidity have been proposed.
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