This paper presents an analytical method for planning an efficient tool-path in machining free-form surfaces on 3-axis milling machines. This new approach uses a nonconstant offset of the previous tool-path, which guarantees the cutter moving in an unmachined area of the part surface and without redundant machining. The method comprises three steps: (1) the calculation of the tool-path interval...

This paper argues for using ambiguity plane features within dynamic statistical models for classification problems. The relative contribution of the two model components are investigated in the context of acoustically monitoring cutter wear during milling of titanium, an application where it is known that standard static classification techniques work poorly. Experiments show that explicit mode...

Curvilinear tooth gears are commonly produced on a face milling cutter and a hob cutter. However, this paper proposes a kind of curvilinear tooth gear which is processed by a parallel linkage with a single blade cutter. For the purpose of identifying the meshing and contact characteristics of curvilinear tooth gears, the paper covers the following: (i) equations of tooth surfaces are deduced fr...

Studi kerusakan pada pisau (cutter) mesin milling F4.04 yang sering terjadi dalam industri manufaktur telah dilakukan menggunakan metode analisa dan perbaikan. ini bertujuan untuk menganalisis cutter melakukan perbaikan sesuai dengan standarisasi ada. Analisis penyebab tepat diharapkan dapat meningkatkan efisiensi, produktivitas, mengurangi biaya produksi di manufaktur. Analisa menggambarkan ha...

The present paper deals with local and global conditions for collision-free 3-axis milling of sculptured surfaces and the selection of cutting-tools for a given surface. We describe local and global millability results whose proofs have been published in a previous paper. The theoretical background involves general oo-set surfaces. Here an algorithm is presented which after evaluation of the su...

In this paper, a new algorithm is proposed to interpolate G01 codes in 2D milling. Without resorting to smooth curve approximation, the algorithm makes full use of the acceleration bounds to change directions with optimal velocities at the cutter location points designated by the G01 codes, and then makes global lookahead and optimization to generate time-optimal interpolation of the G01 codes....

To improve the cutting efficiency, one of key approaches is to control with constant force in the full depth working condition. And the controller design is vital to realize the real-time feasibility and robustness of the system. A neuron optimization based PID approach is proposed in this paper and adopted in the NC cutting process. This approach optimizes the parameters of PID controller real...

In the milling process, under high-efficiency and intermittent cutting loads, instantaneous posture of cutter cutter-workpiece engagement are in an unstable state. It is difficult to accurately identify friction wear boundary tooth flank. has become urgent problem be solved life evaluation cutters. The characteristics variation distribution thermal-stress mechanical coupling field flank vibrati...

Thin-walled workpieces, such as aero-engine blisks and casings, are usually made of hard-to-cut materials. The wall thickness is very small and it is easy to deflect during milling process under dynamic cutting forces, leading to inaccurate workpiece dimensions and poor surface integrity. To understand the workpiece deflection behavior in a machining process, a new real-time nonintrusive method...