Simulation study of drilling force and drilling temperature in staggered teeth BTA deep-hole drilling

In the metal cutting process, the rate of tool wear and the processing quality directly hinge on the cutting force and cutting temperature. With the aid of the DEFORM-3D finite-element analysis software, this paper simulates the drilling process of staggered teeth BTA drill bit, analyses the distribution pattern of drilling force and drilling temperature in staggered teeth BTA deep hole drilling, and discusses how the two parameters vary with the cutting speed and feed rate. The simulation results show that the drilling force and drilling temperature in staggered teeth BTA deep-hole drilling are positively correlated with the feed rate and the spindle speed; the feed rate had a greater impact on the drilling force, while the spindle speed had a greater impact on the drilling temperature; the drilling temperature gradually rose from the geometric centre to the excircle of the drill bit. © 2017 AMSE Press. All rights reserved.