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S23 Projeto de Sistemas Mecânicos |
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Title:
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HIGH-SPEED CUTTING MILLING MACHINE DESIGN
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Summary :
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THE PRESENT PAPER PROPOSES TO PRESENT A CONCEPT DESIGN OF HIGH-SPEED CUTTING MILLING MACHINE (HSC), WITH THREE AXIS CONTROLLED, DESTINED OF THE CUTTING DIES AND MATRICES BY TOP MILLING WITH TOOL OF TIP BALL, TO OBTAIN SURFACES WITH SUPERFICIAL QUALITY RA = 0,5MM AND DIMENSIONAL PRECISION OF ± 20 MM. THE SOLUTION SELECTED FOR MILLING MACHINE HSC USE A GRANITE BASE WITH AEROSTATIC GUIDES IN X E Y OF TABLE, DIRECT DRIVEN OF LINEAR MOTORS, WITH POSITION CONTROL THROUGH ELECTROOPTIC SCALES. THE SPINDLE IN Z IS SUPPORTED BY TWO MAGNETIC BEARINGS AND DIRECT DRIVEN BY A HIGH FREQUENCY CA MOTOR, PROPITIATING SPEEDS UP TO 40 000 RPM AT 40 KW. THE MILLING HEAD IS MOUNTED ON LINEAR GUIDES WITH HIGH PRECISION RECIRCULATING BALL SCREW, DRIVEN BY CA MOTOR, WITH ELECTROOPTIC SCALE FOR FEEDBACK CONTROL.
KEY WORDS: HIGH-SPEED CUTTING MILLING MACHINE, DESIGN CONCEPT, CUTTING OF CAVITIES, LINEAR MOTOR, MAGNETIC BEARINGS.
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Author :
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Müller, Markus 0
Tavares, Ricardo Compiani
Weingaertner, Walter Lindolfo
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Paper View :
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COBEM99
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