DRIVE POWER AS A CONTROL PARAMETER OF SURFACE GRINDING BY A FLAP WHEEL

Abstract

Today, the abrasive grinding of surfaces by flap wheels is widely used in aircraft construction under the manufacturing of large-sized parts. The main operating parameters of the process are flap wheel rotation frequency, longitudinal feed and wheel upset (deformation). At the same time, when grinding panels and skins featuring a non-constant curvature of the machined surface it is rather difficult to monitor and adjust the actual value of the flap wheel upset in operation. The solution is to use the drive effective power consumed for grinding as a mode parameter. In fact, the power consumed for machining is a complex parameter that in its turn depends on the rotation frequency, the value of feed and especially on the flap wheel upset value. However, it can be an effective mode parameter if frequency and feed rates are constant. The PURPOSE of the paper is testing the possibility of using effective power as a control parameter that determines the dynamics and performance of the grinding process. The METHODS used in the study involve analytical analysis and experimental verification. RESULTS. It is shown that the drive effective power can be successfully used as a control parameter of the process of grinding by flap wheels.