Influence of MS type chipbreaker retaining wall on turning force and parameter optimization

To study the effect of chip breaker retaining wall of cemented carbide tools on turning force and parameter optimization, the MS chip breaking groove with blade BO6020 was selected. Taking titanium alloy as the research object, a three-dimensional cutting simulation model was established based on ABAQUS finite element software. Firstly, the single factor experimental method was used to analyze and study the influence of the height, inclination Angle and minimum slot spacing of the retaining wall of chip cutting groove on the cutting force. Then, the orthogonal experimental method was used to study the parameter optimization with the height, inclination Angle and minimum slot spacing of the retaining wall as the optimization variables. The simulation results show that within the range of experimental parameters, the cutting force first becomes stable and then gradually increases with the increase of inclined Angle, and then decreases first and then becomes stable with the increase of retaining wall height and minimum groove spacing. The minimum groove spacing has the greatest effect on cutting force, followed by the inclination Angle, and the height of the retaining wall has the least effect on cutting force. When the minimum slot spacing is 0.4mm, the inclination Angle is 45°, and the retaining wall height is 0.3mm, the cutting performance of MS chip cutting groove is better.