With milling of small diameter bit body big diameter is spherical
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source:LENA CNC Machining
Attached drawing mill is not what place of complete and spherical attached drawing shows is big diameter of milling of small diameter bit body those who be not complete sphere is spherical. Before milling, first equalize of good thick car workpiece end face line, it is rotate with workpiece round line of the center, its dimension is the dimension that blueprint asks. Draw on work semifinished product next with perpendicular the line at central line, on this line the picture gives center E, the horizontal that nods through E draws a circle, the quantity produces this round diameter D. the workpiece that draws fine line installation is on the circumgyrate workbench that milling machine uses, turn milling head inside fore-and-aft plane again turn A horn, a horn presses type calculates: In Sina=D2R type: D -- the circumgyrate diameter that the E on workpiece nods (Mm) ; R -- the radius with place spherical treatment (Mm) . The diameter that adjusts milling cutter is more than B, and the whirl of milling cutter the center aims E place. When milling, first fore-and-aft feed undertakes trying cutting, the Dao Wen that waits for mill to go out is meshy grain and when the round line with end face is tangent, stop fore-and-aft feed, rotational circumgyrate workbench, undertake circumferential feed, can mill goes out spherical. In milling process, to assure precision, applied model will check. CNC Milling