Abstract
This paper mainly establishes a two-dimensional model about the YG8 carbide tool turning TC4 titanium alloy on the basis of ABAQUS. The cutting force of the simulation model was verified by the turning experiment, and the relationships of cutting force with cutting speed, feed rate and rake angle of cutting edge in the model were studied. A prediction model of main cutting force related to cutting speed, feed rate and rake angle was obtained by central composite experiment. Studies have shown that the difference between the cutting force acquired by simulation and by experiment was less than 10%; in a certain range, the cutting force increased with the feed rate, the cutting force decreased with the increase of cutting speed and rake angle, and the influence of feed rate to cutting force was most significant.
Highlights
Titanium alloys are widely used in the fields of aeronautics, astronautics, biomedical applications and chemical industry because of their high specific strength, strong corrosion resistance and nice heat resisting [1,2,3]
Figure.5 shows that the values of main cutting force of the experiment and simulation are very approximate, the difference between the values of main cutting force is less than 10%, and the cutting speeds show the little influence on the cutting force in the range of 30m/min to 110m/min
With the method of central composite design, the influence of cutting speed, feed rate and rake angle on the main cutting force were studied by using the simulation model
Summary
Titanium alloys are widely used in the fields of aeronautics, astronautics, biomedical applications and chemical industry because of their high specific strength, strong corrosion resistance and nice heat resisting [1,2,3] These materials are regarded as difficult to machine because of their high chemical reactivity and low thermal conductivity [4]. Riaz Muhammad etc [9] constructed a finite element model of conventional and hybrid oblique turning processes of titanium alloy, and the cutting force and cutting temperature were analyzed. These studies were only qualitative research, did not obtain the prediction model
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