Classification and characteristics of milling cutters

1, Cylindrical milling cutter

Used for horizontal milling machine to process the plane. The teeth of the cutter are distributed on the circumference of the milling cutter, and are divided into straight teeth and spiral teeth according to the shape of the teeth. According to the number of teeth into coarse teeth and fine teeth. Spiral tooth coarse tooth milling cutter teeth less, high strength, large chip space, suitable for rough machining; fine tooth milling cutter for finishing machining.

2, Face milling cutter

Used in vertical milling machine, end milling machine or gantry milling machine on the processing plane, end face and circumference have teeth, there are coarse teeth and fine teeth. Its structure has a whole type, inlaid tooth type and indexable 3 kinds.

3, End Mills

Used for processing groove and step surface, etc., the teeth are on the circumference and end face, and cannot be fed along the axial direction when working. When the end mill has end teeth through the center, it can be axially fed.

4, Three-sided milling cutter

Used for processing various grooves and step surfaces, with teeth on both sides and circumference.

5, Angle milling cutter

Used for milling into a certain angle of the groove, there are two kinds of single-angle and double-angle milling cutter.

6, Saw blade milling cutter

Used for processing deep grooves and cutting workpiece, with more teeth on its circumference. In order to reduce the friction when milling, there are 15′~1° sub-deflection angle on both sides of the cutter teeth. In addition, there are keyway milling cutters, dovetail milling cutters, T-slot milling cutters and various shaping milling cutters, etc.

7, T-shaped milling cutter

Used for milling T-slot.

The basic requirements of the cutting part material of the milling cutter.

(1), high hardness and wear resistance: at room temperature, the cutting part of the material must have sufficient hardness to cut into the workpiece; with high wear resistance, the tool does not wear, prolonging the service life.

(2), good heat resistance: the tool will generate a lot of heat in the cutting process, especially at higher cutting speeds, the temperature will be very high, therefore, the tool material should have good heat resistance, both at high temperatures can still maintain high hardness, there can continue to cut performance, this has the nature of high temperature hardness, also known as hot hardness or red hardness.

(3), high strength and good toughness: in the cutting process, the tool to withstand a lot of impact, so the tool material should have a high strength, otherwise easy to break and damage. As the milling cutter will be subject to shock and vibration, so the milling cutter material should also have good toughness, before it is not easy to collapse the edge, broken.

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