The effect of trepanning parameters on wear of tool and surface quality of titanium alloy

Abstract

There is a growing interest in developing an advanced technique to manufacture titanium alloy for larger holes in the aviation and marine industries. While the application of larger holes is limited due to the low machinability and high cost. The deep-hole trepanning is investigated to manufacture the titanium alloy in a high-efficient low-cost manner, and the technical challenges during the deep-hole trepanning process are studied in this article. Designs of the deep-hole trepanning tool and experiments under different cutting speeds and feed are carried out. Chip morphology, axial cutting force, and tool wear are analyzed. The optimal process parameters are achieved. This study provides a practical solution to process titanium alloy for potential industrial applications.

Optimization of Cutting Parameters for Deep Hole Boring of Ti-6Al-4V Deep Bottle Hole

“…Aresh et al [14] studied the effect of tool geometry parameters such as rake angle and cutting parameters such as depth of cut on cutting forces to explain the stress state at the cutting edge, and the results show that a cutting tool with a 20 • rake angle achieves efficient cutting. Feng et al [15] carried out the design of deep hole trepanning tool and performed deep hole trepanning tests for TC10 titanium alloy at different cutting speed and feed rate, and the results show that chip morphology, tool wear, and hole surface quality can meet the machining requirements when the feed rate is in the range of 0.10-0.15 mm/r and the cutting speed is less than 27 m/min, and the machining of TC10 deep hole tube was realized with an L/D ratio of 21. To obtain a good surface quality of deep bottle holes and high machining efficiency, reasonable cutting parameters need to be selected, which include cutting speed (v), depth of cut (ap), and feed rate (f) [9].…”