Features of precision parts machining milling cutter

Milling is one of the widely used precision parts machining and cutting methods. Because the milling cutter is a multi-edged tool with teeth on the cylindrical surface or the end surface, the total length of the cutting edge participating in the cutting is longer, there is no empty stroke during cutting, and a higher cutting speed can be used, so the efficiency of production processing Higher.

Each tooth of the milling cutter is equivalent to a turning tool, but milling is intermittent cutting, and the cutting thickness and cutting area are changing at any time, so milling has the following characteristics:

1. During the cutting process of precision parts, the cutting thickness and the amount of side cutting are changing at any time, so the cutting force fluctuates, causing the cutting process to be unstable. At the same time, the cutter teeth of the milling cutter cut into and out of the workpiece in sequence during milling. Periodic vibration.

2. Milling is intermittent cutting, the cutting edge is impacted, the tool life is short, and even chipping may occur.

3. During the machining and cutting of precision parts, the abrasion behind the cutter teeth is intensified, the work hardening phenomenon of the workpiece is serious, and the surface is rough.

4. The chip evacuation of the milling is semi-closed, so the milling cutter slot must have enough chip space to avoid the difficulty of chip evacuation, and even squeeze the cutter teeth of the milling cutter.