ANALISYS OF THE CONDITIONS OF A MAGNETO-ABRASIVE POLISHING OF ENDMILLS OF HARD ALLOYS DURING THEIR POSITIONING IN RING-TYPE WORKING AREAS
DOI:
https://doi.org/10.20535/2305-9001.2013.68.33977Keywords:
Magnetically-abrasive treatment, eventual milling cutters, intensity of treatment, speed of treatment.Abstract
The following paper shows the results of mathematical calculations of speed components of points on the tool surfaces of endmills, during their magneto-abrasive machining in the ring-type working area. The rotation speed of an endmill around the axis of ring bath influences the intensity of the preparation dramatically. At the same time axial rotation of a tool serves for the immixture of the polishing powder in the contact zone. The most suitable preparation conditions for the chip flute are reached during the magneto-abrasive machining in the drilling direction with the tilt angle from about p=30-60°. Clearance surface of periphery cutting edges of the endmill is being efficiently polished during its machining in both directions and independent from the degree of a tilt angle. Clearance surface of the end cutting edge can be effectively polished only during the tool movement in the drilling direction, tilt angle should be chosen as р>10°.References
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