Some people cannot tell the difference between an end mill and a chamfering cutter. In some cases they are used similarly, but that does not mean they are interchangeable. Today, I will give you a popular science: What is the difference between an end mill and a keyway milling cutter? How to distinguish and use different milling cutters
1. Press Apply
Vertical milling cutters are used to process plane or cylindrical surfaces, and their outer diameter is relatively loose, while keyway milling cutters are used to process keyways, and their outer diameter directly affects the quality of the keyway and the matching degree between the keyways.
2. The number of teeth is different
End mills generally have three or more teeth, and keyway mills generally have two teeth.
3. Differences at the edge
In order to improve work efficiency, the end mill has multiple allowances, the diameter is larger, and the allowance is generally more, and the keyway milling cutter has two allowances, which are mainly fed axially like a drill.
4. The axial direction is different
The end mill cannot enter the tool axially, while the keyway milling cutter needs to move axially and simultaneously move the tool axially. It can enter the tool axially, which is equivalent to a drill bit and can drill flat-bottomed holes.
Select the number of flutes according to the cutting method of the end mill
For example, when grooving with the same cutting width as the tool diameter, a larger nose groove is required. In this case, a 2-flute end mill is usually chosen. When making side cuts with a small cutting width, priority is given to the rigidity of the tool, and a multi-blade end mill is selected.
Choose the length of the blade.
Depending on the machining geometry, such as the geometric depth of the groove, the optimum milling cutter edge length is selected. If an end mill with a small number of carbon primes is selected, chatter vibration will occur, the characteristics of the end mill cannot be fully utilized, it is difficult to obtain a high-precision machined surface, and other adverse effects will occur.
