Briefly describe the characteristics of milling and classification of tools

The characteristics of milling: milling cutter is a multi-flute cutter, the work of the number of teeth is more, can be used in step milling, can also be used in high-speed milling due to, this productivity is higher. The milling process is a continuous cutting process, the knife edge cut into and out of the workpiece at the moment, to produce impact and vibration, when the vibration frequency and the machine inherent frequency is consistent, vibration will be intensified, resulting in the teeth of the knife edge, or even damage to machine parts. In addition, due to changes in the milling thickness of the medium-term changes in the milling force will also cause vibration. The knife edge to participate in the short working time, although conducive to the heat dissipation and cooling of the knife edge, but the periodic thermal deformation will cause thermal fatigue cracks in the cutting edge, resulting in cutting teeth peeling or chipping.

CNC tool features blade and shank highly generalized, standardized, serialized; blade or tool life and economic life of the reasonableness of the blade or tool; blade or tool geometry parameters and cutting parameters of the standardization, typicality; blade or tool material and cutting parameters and the material to be machined should be matched; the tool should have a high degree of precision; shank of the strength should be high, high rigidity, wear resistance should be good; tool shank or tooling system mounting Quality has a limit; the position and direction of the insert and shank cutting into the requirements; the positioning reference of the insert, shank and automatic tool change system should be optimized and other characteristics.
CNC milling cutter types can be classified according to the following categories: classified by structure: divided into integral, inlaid, vibration-damped, internally cooled and special forms. According to the processing process classification: turning tools, drilling tools, boring tools, milling tools.