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SUMMARY. BOYER COMPANY figures, activities , cutomers and positioning machining of exotic materials microdrilling and ultraprecision measurement services HIGH GRADIENT RF COMPONENTS past and present activities results on the test part
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SUMMARY BOYER COMPANY figures, activities, cutomers and positioning machining of exoticmaterials microdrilling and ultraprecision measurement services HIGH GRADIENT RF COMPONENTS past and presentactivities results on the test part technicaldevelopments (control and machining) comments machining of a complete structure
BOYER COMPANY SOME FIGURES 30 years of existence 47 people 2800 M2 5 Meuros of turnover ACTIVITIES AND CUSTOMERS Nuclearweapons(CEA/DAM) Civiliannuclear(AREVA NP services nucléaires, CERN) Defense (THALES UNDERWATER SYSTEMS) Energy (S2M) Aeronautics and spacesector (SNECMA) Optical sector (ESSILOR) Automotive (HONEYWELL, DELPHI) POSITIONING Precision machining and ultraprecision from prototype to medium production runs. Manufacturing, assembly and measurement services
EXPERIENCE • An important know-how acquired in the field of Civilian and Military nuclear sector as well as in research • An established team accustomed to machining new materials • Materials: tantalum, titanium, copper, molybdenum, vespel, aluminum, graphite, steel, Inconel, Maraging, AlSi MMC etc ... Machining of exoticmaterials
Microdrilling Microdrilling of cylindrical holes from diam. 0.1 mm to 0.25 mm in a gold plate 0.05 mm thick.Required tolerances for diameters, spacings and positions: 0.01 mm.Result: less than 0.005 mm. Without deformation at the entry Holes compared with a pen tip Machining of a grid composed of square holes of 0.10 mm x 0.10 mm ± 0.02 Result: 0.01 mm in size and radius angle 0.01 to 0.015 mmMicromachining was carried out without deformation or alteration of the material. The required accuracy is guaranteed by our means of measurement of three-dimensional machine WERTH
ULTRA PRECISION machiningNANOFORM 250 ULTRAGRINDdiamondturning and milling of ultra precision • Gobaldeformity of 5 µm • Ra 50 nm • Three axes (X, Z, C) X and Z: 220 mmPosition 0.2 m,Ra <10 nm,Tolerance of form <0.5 microns • Micro drilling of • a pure aluminum part • Milling in H of a tin part
MEASURING SERVICESequipment 1 opticalmeasurement WERTH device 750x405x410mm 4th axis 3D measurement by laser optical system and high precision controls fragile parts, deformable or too small and can not be by conventional means. 1 ZEISS Prismo 7 (integrated rotary 4th axis, measuringhead)1500 x 900 x 700 mm 1 ZEISS Prismo 5 Super ACC (added rotary 4th axis, measuringhead)700 * 900 * 500 mm 1 ZEISS UMM 850 (integrated rotary 4th axis, measuringhead)850 * 1200 * 600 mm 1 Machine ZEISS MC 850 (added rotary 4th axis )850 * 1200 * 600 mm 1 FORM TALYSURF Série 2 Taylor Hobson
MEASURING SERVICES - Three-dimensional control of the first part (development of the range of control, the control program and analysis of results) - Provision of control programs and start on site - Load shedding control 3D standard parts - Dimensional inspection and sampling of three-dimensional qualityAnalysis of the results includes a chart, listing machine with gaps identified and popularized a summary containing the information from the protocol defined with the customer. Screen copy of a part machined on EDM SARIX machine Drawing of a blade section
ACTIVITIES ON HIGH GRADIENT RF COMPONENTS PAST ACTIVITIES machining of a test part deliveredin june 2011 CURRENT ACTVITIES machining of a complete structure
TECHNICAL DEVELOPMENTS CONTROL - fittingtool to maintain the part withoutdeformingit - minimum of contact to avoid to mark the part - use of the super ACC ZEISS machine to get the precision MACHINING - fittingtool to get the 1µm flatness - setting of the tool (diameter, radius, position in X and Y) - millingstrategy to get the best roughness possible - feedrate, cutting speed - good speed to obtain the good following of the axis
COMMENTS We know nowthatitisfeasable in the precisionasked but it has required : - a lot of developments to get the precision and the roughnessrequired - a lot of time to machine the standard part Any change in the design implies changes in the process and development of the manufacturing
MACHINING OF A COMPLETE STRUCTURE PROBLEMATIC - the aimis to manage to produce parts according to the drawingsin a limited time - It implies to have a reliableprocess DIFFICULTIES - It isnecessary to reduce the number of operationsat the minimum - It willbenecessary to monitor the tool wear for a complete structure - The design of the milling has changed. The radius at the bottom decreasedfrom 3,15 mm to 0,5 mm, thus the type of millingtoolisdifferent. The millingstrategy has to bereviewed to get the good roughness Example : the path of milling to mill the cross shouldbedivided by 2,5 to get the sameroughness
STATE OF PROGRESS The millingoperationisvalidated in term of roughness The turningoperations are validated The flatness in milling and turningisvalidated We are in a process of validation of the exact position of the millingtool (X, Y) This is the last point to be able to launch the machining of a complete part.