Abstract
An instrumental module for external circular grinding has been developed, using methods of intermittent processing with replaceable abrasive bars with a combined supply of coolant through the pores of the bars and through the channels between them, with its activation in special cavitation nozzles. Is to develop a method for circular external inter-mittent grinding and a tool module that ensures stable operation of the wheel and efficient supply of cutting fluid to the cutting zone. The tool module of the assembling grinding wheel has been developed, which provides the effect of intermittent grinding with the supply of cutting fluid through the abrasive bars and the gap between them.
Highlights
Literature reviewThe quality of the surface layer of machine parts that determine their performance characteristics in most cases is formed during grinding
The goal of this study is to develop a method for circular external inter-mittent grinding and a tool module that ensures stable operation of the wheel and efficient supply of cutting fluid to the cutting zone
The tool module of the assembling grinding wheel has been developed, which provides the effect of intermittent grinding with the supply of cutting fluid through the abrasive bars and the gap between them
Summary
The quality of the surface layer of machine parts that determine their performance characteristics in most cases is formed during grinding. It is known that the process of intermittent grinding in comparison with continuous provides a decrease in the maximum temperature by about 30–40%, which is confirmed by theoretical calculations performed in [1,2,3,4] The analysis of these studies with intermittent grinding showed that in the phase of the absence of contact of the wheel with the treated surface, its cooling is mainly provided by the thermal conductivity of this surface. The contact of the wheel with the workpiece is periodically interrupted, which leads to a decrease in the thermal saturation of the surface layers of the processed material This allows improving the quality of processing while increasing the grinding performance. All coolant supply channels are equipped with nozzles that use flow cavitators to activate the coolant
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