This paper describes geometric algorithms for automatically selecting an optimal sequence of cutters for machining a set of 21⁄2D parts. In milling operations, cutter size affects the machining time significantly. Meanwhile, if the batch size is small, it is also important to shorten the time spent on loading tools into the tool magazine and establishing z-length compensation values. Therefore,...

An instantaneous rigid force model for prediction of cutting forces in ball-end milling of  sculptured surfaces is presented in this paper. A commercially available geometric engine is used to represent the cutting edge, cutter and updated part geometries. The cutter used in this work is an insert type ball-end mill. Intersecting an inclined plane with the cutter ball nose generates the cutting...

This paper presents an efficient and robust algorithm for the geometric determination of swept volumes during the simulation of NC−milling (three-axis machining and five-axis machining). The boundary Ψ of the volume swept by a cutter Φ is represented polygonally by using instantaneous helical motions to exactly determine the line of contact between Φ and Ψ. Applying concepts of differential geo...

The big sized milling cutters are expensive tools and not appropriate for small batches production. Making these more versatile, able to fit different kinds of processes shapes the parts be machined is a must. As well, cooling cutting area very important. existing end-mill designed feed internally with coolant only teeth on front side. paper presents concept modular tool, made elementary disk c...

The time domain recursive least squares estimation of parameters in the presence of additive output noise of harmonic form leads to biased estimates. However, frequency domain least squares parameter estimation, where the frequency range contaminated by the noise is eliminated, can be used to obtain good parameter estimates. Both the time domain and frequency domain methods are described, and a...