The carbide milling cutter is made of ultra-fine grained carbide material, which has good milling and cutting performance, ensuring high work efficiency, and also has high hardness, sufficient bending strength and excellent wear resistance, and, Slots, holes and plate edges are milled, and the surface is clean, tidy and free of burrs. Carbide milling cutters are mainly used in the processing of PCB (PrintedCircuitBoard) printed circuit boards, so it is also called carbide PCB milling cutters.
The main types of carbide milling cutters:
1. Cylindrical 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.
2. Face milling cutter: It is used for machining planes on vertical milling machines, face milling machines or gantry milling machines. There are cutter teeth on the end face and circumference, and there are coarse teeth and fine teeth. Its structure has three types: integral type, insert type and indexable type.
3. End mill: used for machining 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. Axial feed is possible when the end mill has end teeth that pass through the center.
4. Three-sided 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.
5. Angle 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. In order to reduce friction during milling, there are 15′-1° secondary declination on both sides of the cutter teeth. In addition, there are keyway milling cutters, dovetail milling cutters, T-slot milling cutters and various forming milling cutters.
7. T-shaped milling cutter: used to mill T-shaped grooves.
Maintenance of carbide milling cutters
1. Check the power and stiffness of the machine tool to ensure that the required diameter of the milling cutter can be used together.
2. The overhang of the tool on the spindle should be as short as possible to reduce the impact of the axis of the milling cutter and the position of the workpiece on the impact load.
3. Use the correct milling cutter pitch for the process to ensure that there are not too many blades meshing with the workpiece at the same time to cause vibration. On the other hand, when milling narrow workpieces or milling cavities, make sure that there are enough The blade engages with the workpiece.
4. Select the correct feed rate, main declination angle and use cutting fluid in a timely manner.
