Main uses and common problems of milling cutters
A milling cutter is a rotary tool with one or more teeth for milling. When working, each tooth cuts off the allowance of the workpiece intermittently. The milling cutter is mainly used for machining planes, steps and grooves on a milling machine. , forming surfaces and cutting workpieces, etc. According to the purpose, material and structure of the milling cutter, milling cutters are divided into different types. The following is a brief introduction to the common milling cutters:
1. There are many commonly used types of milling cutters according to their uses:
①Cylindrical milling cutter: used for machining planes on horizontal milling machines. The cutter teeth are distributed on the circumference of the milling cutter, and are divided into straight teeth and helical teeth according to the tooth shape. According to the number of teeth, there are two kinds of coarse teeth and fine teeth. The helical-tooth coarse-tooth milling cutter has few teeth, high tooth strength, and large chip space, which is suitable for rough machining; fine-toothed milling cutter is suitable for finishing.
②Face milling cutter: used for vertical milling machine, end milling machine or gantry milling machine, upper processing plane, there are cutter teeth on the end face and circumference, and there are also coarse teeth and fine teeth. Its structure has three types: integral type, insert type and indexable type.
③End mill: used for processing grooves and stepped surfaces, etc., the cutter teeth are on the circumference and end face, and cannot be fed in the axial direction during work. When the end mill has end teeth passing through the center, it can be fed axially (usually double-edged end mills are also called; keyway milling cutters; axial feed).
④Three-side edge milling cutter: It is used to process various grooves and stepped surfaces, and there are cutter teeth on both sides and on the circumference.
⑤Angle milling cutter: used for milling grooves at a certain angle, there are two types of single-angle and double-angle milling cutters.
⑥ Saw blade milling cutter: It is used for machining deep grooves and cutting workpieces, and there are more teeth on its circumference. To reduce friction during milling, there are secondary declinations on both sides of the teeth. In addition, there are keyway milling cutters, dovetail milling cutters, T-shaped slot milling cutters and various forming milling cutters.