Maintenance of lead screw and guide rail of high speed NC plane drilling machine -8
- 01 December 2020
- CNC plate drilling machine
What are the NC tools? Tools commonly used in NC machining
The cutting tool of NC plane drilling machine is one of the preconditions to improve the machining efficiency. Its selection depends on the geometry of the workpiece to be processed, the material state, the fixture and the rigidity of the selected tool. Different tools have different uses in NC machining process, so what are the commonly used tools in NC machining process?Milling process parameters:
The cutting speed of the carbide milling cutter is generally 180-270m / min. The calculation formula is as follows (for reference only) S = PDN / 1000 (M / min), where: P: PI (3.1415927); D: milling cutter diameter, mm; n; milling cutter speed, R / min; feed speed matching with cutting speed. If the feed rate is too low, due to the friction heat, the printed circuit board material softens or even melts or scorches, blocking the chip removal groove of the milling cutter, and cutting can not be carried out. If the feed is too fast, the milling cutter will wear fast, the radial load will be large, the cutter capacity will be large, the working quality will be poor, and the size will be inconsistent. How to judge the feeding speed? The following items should be considered: PCB material, thickness, number of blocks per stack, iron knife diameter, chip removal slot. Generally, it can be set according to the technical data provided by the tool supplier. Due to the difference of the material quality brand and manufacturing process of the tool, the tool process parameters of different manufacturers are different.
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