HIGH SPEED MILLING: Solid simulation and machine limits

摘要

The rational exploitation of the potentials of HSM (High Speed Milling) leads industrials to review their ranges of machining and especially their strategies of machining. However, the specifics imposed by HSM have not been much integrated in the actual CAD/CAM systems. The integration of the HSM specifics in CAD/CAM systems can be a powerful and efficient way to use the HSM potentials. In this paper, we will first present what are the HSM specifics in terms of the imits of cutting tools, controllers, and machine-tools. Then, we will introduce an algorithm to predict the real feed rate and tracking errors, considering the limits of the controllers and the machine tools. The real feed rate is often very lower than the programmed one. In order to analyze the milling process mere precisely, the use of the real feed rate is one of the essential factors. The efficiency of the algorithm has been verified through several experiments with various tool paths. In addition, the algorithm has been already integrated into our machining simulator being developed. We will show some results obtained from the machining simulator concerning tracking errors estimation.