Utilization of a dynamometric pendulum to estimate cutting forces involved during routing. Comparison with actual calculated values

Abstract

Nowadays, to measure cutting forces involved during routing, systems with piezo-electric sensors are generally used. This study began with the following observation: two species with the same density can induce completely different cutting forces. But two species with completely different densities can also show closed cutting forces. Current formulations used to calculate cutting forces can not explain such phenomenon. That is why some new research has been done to establish relationship between cutting forces and mechanical parameters [8]. In this work, we decided to present a very simple, quick and accurate method to obtain similar results and good cutting forces approximation using a dynamometric pendulum. With this method, we can take into account the machining parameters, wood characteristics, cutting speed, and impact resistance into just one test. It is possible to quickly know wood behaviour during machining, particularly when new species or new conditions are used in industries. © INRA, EDP Sciences, 2005.