A cutting force model considering influence of radius of curvature for sculptured surface machining

作者：Cao Qingyuan^*; Xue Deyi; Zhao Jun; Li Yueen

来源：International Journal of Advanced Manufacturing Technology, 2011, 54(5-8): 821-835.

DOI：10.1007/s00170-010-2980-0

• Ball-end milling
• Cutting forces
• Sculptured surface
• CNC machining
• Radius of curvature

A new cutting force model considering influence of radius of curvature is introduced in this research for sculptured surface machining with ball-end mill. In this model, first the whole cutting region near the cutter contact (CC) point on the sculptured surface is approximated by a spherical surface, and the radius of this spherical surface is used as the radius of curvature at the CC point. Then equations to estimate the cutting forces at a differential element on the cutting edge are established. By obtaining the cutter-workpiece contact areas based on geometries of the cutter and the sculptured surface, the mathematical model for estimating the total cutting forces in different directions is then developed. Experiments have also been conducted to measure the cutting forces considering different radii of curvatures on the sculptured surfaces. The analytically estimated cutting forces match well with the actual cutting forces obtained through experiments.

• 出版日期2011-5
• 单位山东大学