Research on Micro-feed Chip Breaking Method for Precision Turning
During the turning process of automated equipment,the chip morphology emerges as the foremost determi-nant influencing the seamless progression of operations.In cases where chips exhibit continuity and resistance to fragmenta-tion,they tend to envelop the components,resulting in surface abrasions on the workpiece.This phenomenon not only mars the workpiece's surface,but also interferes with the subsequent clamping process,culminating in heightene scrap rates and compromise operational efficiency.Drawing a parallel with the peck drilling technique employed in drilling operations,a no-vel approach termed the microelement feeding chip breaking method for turning processes is introduced.This innovative method involves periodic reverse feed,evenly distributed throughout the turning process,to induce chip fragmentation.A comprehensive evaluation of this methodology's merits and demerits is conducted from three perspectives:chip fragmenta-tion efficiency,tool wear and surface morphology.The findings underscore the superiority of the microelement feeding chip breaking method over conventional processes,particularly in terms of chip fragmentation efficiency and surface quality.Fur-thermore,it is observed that the utilization of cutting oil for lubrication yields the most favorable tool lifespan.
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