Reducing fluctuation of machining strip width by tool position modification for five-axis NC machining of sculptured surfaces

Abstract

This paper presents a method to reduce the fluctuation of machining strip width by modifying tool position.

Quasistatic deflection analysis of slender ball-end milling cutter

“…The calibrated stiffness of the ball end part along the Xcg-and Ycg-axes was 1.24×10 7 and 1.04×10 7 N•mm 2 , respectively. The bending stiffness decreased with distance to the clamped end, and there was a significant difference for the Xcg-and Ycg-axes.…”

“…Commonly used cutting force adjustment methods include feed rate optimization [4], machining allowance planning, tool engagement angle optimization [5], cutter path planning [6], and cutter axis optimization [7,8]. They are mainly utilized to adjust cutting forces during multi-axis machining.…”

A Multi-Scale Tool Orientation Generation Method for Freeform Surface Machining with Bull-Nose Tool

“…Therefore, even if the tool orientation remains unchanged, it still leads to changes in . In five-axis CNC milling, significant fluctuations in cutting force arise from the rapid changes in strip width, which consequently reduce tool life and machining quality [ 38 ]. Therefore, to avoid the problem of frequent changes in machining strip width that may cause a decrease in workpiece quality, it is necessary to keep the machining strip width as uniform as possible in the machining process.…”

“…Hu et al [ 37 ] developed a tool orientation optimization method that considers both the machining strip width and the machine motion capability to maximize the material removal rate. He et al [ 38 ] provided a method of reducing the fluctuation of the machining strip widths by adjusting the tool orientation, thus making the machining edge gradually converge to the effective machined area.…”