Commonly used milling cutter types and specifications selection
Date：2021-08-01Number：1735
A milling cutter is a rotary tool with one or more teeth for milling. When working, each cutter tooth successively intermittently cuts off the workpiece's margin. Milling cutter is mainly used for machining planes, steps, grooves, forming surfaces and cutting workpieces on milling machines.
species
There are many commonly used types of milling cutters according to their use.
① Cylindrical milling cutter: used for horizontal milling machine processing plane. The cutter teeth are distributed on the circumference of the milling cutter, which are divided into straight teeth and spiral teeth according to the tooth shape. According to the number of teeth divided into coarse teeth and fine teeth two. The helical coarse-tooth milling cutter has few teeth, high tooth strength and large chip space, which is suitable for roughing. Fine tooth milling cutter is suitable for finishing.
2 Face milling cutter: used for vertical milling machine, face milling machine or gantry milling machine processing plane end face and circumference have cutter teeth also have coarse teeth and fine teeth. Its structure has three kinds: integral, inserted and indexable.
(3) End milling cutter: used for processing grooves and step surfaces, etc., the teeth of the cutter are on the circumference and end face, and can not be fed along the axis when working. When the end mill has end teeth through the center, it can be fed axially.
(4) Three-edge milling cutter: used for processing various grooves and step surfaces, both sides and the circumference of the cutter teeth.
⑤ Angle milling cutter: used for milling grooves at a certain Angle, there are two kinds of single Angle and double Angle milling cutter.
Saw blade milling cutter: used for processing deep grooves and cutting workpieces, and there are more teeth on the circumference. In order to reduce the friction during milling, both sides of the cutter teeth have a secondary declination Angle of 15 '~1°. In addition, there are keyway milling cutter, dovetail slot milling cutter, T-slot milling cutter and various form milling cutter.
The structure of the milling cutter
There are four kinds. ① Integral: the cutter body and the cutter teeth are made into one.
② Integral welding gear type: the tool teeth are made of carbide or other wear-resistant tool materials and brazed on the tool body.
(3) Insert type: the cutter teeth are fastened on the cutter body by mechanical clamping method. The replaceable tool teeth can be either the head of the integral tool material or the head of the welding tool material. The milling cutter with the cutter head mounted on the cutter body is called the internal grinding type; The tool head grinding separately on the fixture is called external grinding type.
(4) Indexable (see indexable tool): This structure has been widely used in face milling cutters, end milling cutters and three-edge milling cutters.
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