Let me explain to you the milling technology for precision parts processing

Precision parts processing is quite widely involved in industries. Why is there such a statement? Actually, we can see it in our daily lives—it plays an obvious role and is more widely used in some mechanical equipment. The requirements for precision parts processing are also very high. Why? Due to customers' requirements for product quality, and the fact that this kind of precision parts processing itself has great advantages, it is necessary to do better and gain more customer trust. This is what precision parts processing needs to achieve.

For the milling of planar parts with external contours in general, the side edge of an end mill is usually used for cutting. To reduce tool connection marks and ensure the appearance quality of parts, the cutting and cutting process requirements for tools are very strict.

When milling to outline the shape of precision parts, the exit point of the milling cutter should cut along the extension line of the part's contour curve, rather than directly cutting the part along the normal direction. This is to avoid scratches on the shape and ensure the smoothness of the part's contour.

When processing the closed inner contour surface with a milling cutter, if the inner contour curve allows extension, cutting should be carried out along the tangent direction. If the inner contour curve does not allow extension, the tool can only cut along the normal direction of the inner contour curve, and the cutting point should be selected at the intersection of the two elements of the workpiece's inner contour. In cases where the inner elements are tangent without an intersection point, to avoid tool withdrawal issues, a groove is left at the cutting corner of the blade, and the cutting point should be kept away from the cutting corner of the blade.

The tool path for milling an outer circle using circular interpolation is explained. At the end of the rounding process, the tangent point should not exceed 2; instead, the tool should travel an additional distance along the tangent direction to avoid tool offset cancellation, prevent the CNC lathe tool from contacting the workpiece surface, and thus avoid workpiece failure. When milling an inner circle, the optimal arrangement of cutting from the tangent direction and transitioning from arc to arc should also be followed, which can improve the machining accuracy and quality of the inner hole surface.

That's all for today's discussion on the milling technology of precision parts processing. If you want to learn more about precision processing, please log on to the Ruibang Technology website to view detailed information on precision parts processing and milling.