ECOLE NATIONALE SUPERIEURE D'ARTS ET METIERS Patent applications |
Patent application number | Title | Published |
20110170964 | DRILLING TOOL AND DEVICE WITH SELF-MAINTAINED AXIAL VIBRATIONS - In order to effect drilling without any risk of blockage of the cutting tool used, a drilling device uses means for producing a self-maintained axial vibration of the tool that has the effect of breaking up the swarf of the material removed from the hole in order to facilitate discharge thereof. The means for producing the self-maintained axial vibration are also such that the spindle of the tool can have a direction substantially different from the rotation axis of the means used for rotating the tool. Such a device is particularly advantageous for producing deep holes or during the use of cutting tools producing asymmetric cutting forces. In a particularly advantageous embodiment, the means for producing the self-maintained axial vibration and for enabling the rotation axis of the tool to have a direction substantially different from the rotation axis of the drive means form part of the cutting tool. | 07-14-2011 |
20100145663 | METHOD FOR SIMULATING THE BEHAVIOR OF AN ARTICULATED SET OF BONES - A method of simulating the behavior of an articulated set of bone parts, in particular the vertebral column of a subject comprising a construction step of constructing a three-dimensional geometrical model of the set from data that is specific to the subject in a reference position; and a mechanical customization step of customizing the geometrical model by detailing at least some of the connection areas of the bone parts. The mechanical customization step includes a stage of customizing critical connection areas for the bone parts, referred to as junction areas; a data acquisition stage of acquiring data concerning the articulated bone set of the subject during at least one clinical test of posture in a position different from the reference position or a clinical test of movement starting from said reference position; and a characterization stage for characterizing the mechanical parameters of said junction areas in order to cause the model to reproduce the data acquired during the above-mentioned clinical test. | 06-10-2010 |