New procedure for re-machining in high speed machining processes based on a DSP architecture

This paper presents a new method implemented in an embedded system to detect the first contact between the rotating tool and the surface of the workpiece in the high speed machining operations with a high degree of accuracy. This method is based on the measurement of impedance variations and the calculation of a correlation function. This embedded system associated with the machining process ensures not only the geometrical quality of machined surfaces but also to avoid measuring the tool with tool touch probe, which allows to compensate the tool wear. The purpose of this project is to hold together the world of embedded and the machine world and make an industrial demonstrator integrating different features developed.