Select the tool type is processed according to the shape of the molding surface
For a concave surface, in the semi-finishing and finishing, ball head knife should be chosen in order to obtain good surface quality, but when roughing end mills should choose flat or rounded mills, it is because the ball end cutters cutting conditions are poor; on convex surface roughing end mills generally choose flat or rounded mills, but in the finishing mill should choose rounded, this is because the fillet cutter geometry than the flat end MILLS good; tape stripping slope on the side, and should use taper cutter, although the use of flat end mills can also be processed by interpolating the slope, but will make the machining path becomes longer and the impact of processing efficiency, but will increase the tool wear and affect the accuracy of processing.