①When machining curved parts, in order to ensure that the cutting edge of the tool and the machining contour are tangent at the cutting point, and to avoid the interference between the cutting edge and the contour of the workpiece, generally use a ball nose cutter, a two-edged milling cutter for rough machining, semi-finishing and finishing With a four-edged milling cutter, the number of cutting edges is also related to the diameter of the milling cutter

②When milling a larger plane, in order to improve production efficiency and improve the roughness of the machined surface, a blade inlaid disc face milling cutter is generally used.

③General-purpose milling cutters are generally used when milling facets or stepped surfaces

④When milling the keyway, in order to ensure the dimensional accuracy of the slot, a two-edged keyway milling cutter is generally used.

⑤ During hole processing, hole processing tools such as drills and boring tools can be used