HIGH EFFICIENCY FINISHING TECHNOLOGY CYLINDER HOLE

Abstract

A technology has been proposed for internal grinding of cylinders using a soft felt wheel with glued abrasive powder, which can sharply reduce the surface microroughness obtained in the previous boring operation by changing the direction of the main cutting movement by setting the axis of rotation of the grinding wheel with an individual drive perpendicular to the axis of rotation of the cylinder bore . As a result, the direction of the processing traces changes, thereby increasing the service life of the piston seals (rods) during operation of the pneumatic and hydraulic cylinders, compressors, and internal combustion engines. The proposed internal grinding technology provides an increase in the productivity of the final processing by reducing the main (machine) time, for example, in comparison with honing. Achieving a reduction in the complexity of processing the hole as a whole by eliminating the need to reinstall the workpiece and alignment on another machine. It provides the possibility of processing cylinders of low rigidity due to the absence of vibrations due to the use of soft abrasive wheels.