Magnetic bearing spindle for ultra high speed machining.
نویسندگان
چکیده
منابع مشابه
μ Control of a High Speed Spindle Thrust Magnetic Bearing
Experimental results demonstrate that μ synthesis provides an excellent tool for increasing the dynamic stiffness of thrust magnetic thrust bearings. Accurate system modeling and appropriate uncertainty descriptions are critical to obtaining such results and are described in detail. Both complex μ and mixed μ synthesis were used to design controllers. The performance of the μ controllers is com...
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Due to high surface speed and active control capabilities, active magnetic bearings hold great promise for high speed machining spindles. Herein, the control problem posed by this application is examined and the development of an advanced prototype is reviewed. A μ synthesis framework is proposed for this problem and it is shown that the minimization of the susceptibility to machining chatter m...
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This research proposes an optimized magnetic abrasive machining process that uses an ultra-high-speed system to perform precision machining on a workpiece. The system can process several microns of material, either for machining surface roughness or for machining a workpiece for a precise micro-diameter. The stainless steel workpieces have been machined using an ultra-high-speed magnetic abrasi...
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There are many types of bearings available, each used for different purposes and different conditions. Two major types of bearings are contact bearings and noncontact bearings. By considering the ball material, I separate the contact bearings to steel bearings and ceramic ball bearings. On the other hand, there are bearings that can run without any contact between the sliding surfaces in the be...
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A new dynamical modeling of Active Magnetic Bearing Spindle (AMBS) to identify machining stability of High Speed Milling (HSM) is presented. This original modeling includes all the minimum required parameters for stability analysis of AMBS machining. The stability diagram generated with this new model is compared to classical stability lobes theory. Thus, behavior’s specificities are highlighte...
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ژورنال
عنوان ژورنال: Journal of the Japan Society for Precision Engineering
سال: 1987
ISSN: 1882-675X,0912-0289
DOI: 10.2493/jjspe.53.1009