Objective This project developed the specifications for an expert system (TEMOS) which is designed to detect tool breakage and provide in-process monitoring of progressive tool wear, for milling and blanking operations. The system is capable of 'learning' machinability criteria derived from AE analysis to adapt tool life prediction. Other achievements of this project are: the building and evaluation of three different interferometers; the design of a torque and thrust sensor, based on a strain gauge dynamometer integrated in the drill tool holder; design of an acoustic emission sensor based on the criteria of the NBS conical transducer and the PVDF displacement transducer; an identification system which offers a procedure to evaluate the process state for every combination of conditions; machinability criteria which are derived from statistical analysis of the acoustic emission.ONE OF THE MAIN AIMS OF AN FMS IS TO PERMIT UNMANNED OPERATION FOR CONSIDERABLE PERIODS OF TIME. THIS REQUIRES SENSING SYSTEMS WHICH CAN MONITOR TOOL WEAR AND BREAKAGE TO ENSURE THAT TOOLS ARE CHANGED BEFORE THERE IS A DETERIORATION IN WORKPIECE QUALITY, OR A DANGER OF DAMAGE TO THE MACHINE ITSELF.THE MAJOR AIM OF THIS PROJECT IS TO DEVELOP THE SPECIFICATIONS OF AN EXPERT SYSTEM FOR TOOL WEAR MONITORING IN MILLING, DRILLING AND BLANKING OPERATIONS. THE EFFECT OF TOOL WEAR ON FORCE, TORQUE, POWER OR CURRENT AND ACOUSTIC EMISSION PARAMETERS IN MILLING AND DRILLING OPERATIONS WILL BE INVESTIGATED, AND A TOOL-LIFE PREDICTION MODEL IS TO BE DERIVED. NEW INVESTIGATIONS WILL RESULT IN THE IMPROVED CONTROL OF BLANKING OPERATIONS.A MACHINABILITY TEST BASED ON ACOUSTIC EMISSION WILL BE DEFINED. NOVEL MULTI-PARAMETER SENSORS WHICH ARE SUITABLY COMPACT, ROBUST AND NON-INVASIVE FOR USE IN THE MONITORING OF MACHINING AND METALWORKING OPERATIONS IN THE INDUSTRIAL ENVIRONMENT WILL BE DEVELOPED. THEY WILL BE BASED ON FIBRE-OPTIC AND LASER TECHNIQUES AND WILL BE INCORPORATED INTO THE EXPERT SYSTEM. Fields of science engineering and technologymechanical engineeringmanufacturing engineeringsubtractive manufacturingnatural sciencescomputer and information sciencesartificial intelligenceexpert systemsnatural sciencesphysical sciencesacousticsengineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsensorsnatural sciencesphysical sciencesopticslaser physics Programme(s) FP1-BRITE - Multiannual research and development programme (EEC) in the fields of basic technological research and the applications of new technologies (BRITE), 1985-1988 Topic(s) Data not available Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator Centre Technique des Industries Mécaniques (CETIM) Address 52 avenue félix louat 60304 Senlis France See on map EU contribution € 0,00 Participants (7) Sort alphabetically Sort by EU Contribution Expand all Collapse all BRUNEL UNIVERSITY EU contribution € 0,00 Address See on map Links Website Opens in new window CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS Spain EU contribution € 0,00 Address Calle serrano 117 Madrid See on map Links Website Opens in new window Centre Technique de l'Industrie du Décolletage France EU contribution € 0,00 Address 750 avenue de colomby 74301 Cluses See on map Computer Technologies Company Ltd Greece EU contribution € 0,00 Address 15342 Athens See on map FUNDACION TEKNIKER Spain EU contribution € 0,00 Address Avda. otaola 20 Eibar See on map Links Website Opens in new window Heriot-Watt University United Kingdom EU contribution € 0,00 Address Riccarton, lord balerno building EH14 4AS Edinburgh See on map NICOLAS CORREA SA Spain EU contribution € 0,00 Address 09007 Burgos See on map
