Tool Life Model of Taps With Internal Placement of Chips (TIPC)

The Appearance of a tap design with significant differences from the standard one requires researching the effect of the factors that accompany the process of cutting, on tool life. To establish a tool life model of taps with internal placement of chips (TIPC) the effect on tool life of the following key factors: cutting speed, diameter, thread pitch, cutting angle of the tap, number of regrinding and tool failure criterion was investigated. The research allowed establishing the dependence of TIPC life of basic design parameters and cutting speed when cutting threads in blind and through holes in the workpiece of carbon structural steels. When tapping of blind holes without coolant cutting oil TIPC enhances the tool life for 25...35%, and when tapping of through-holes and using coolant cutting oil — for 40...50%.

References

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