In the mechanical parts processing industry, the selection of a reasonable machining process steps, the use of machine tool processing equipment and the selection of tools is also very important, today to see the understanding of cutting conditions in machining tools
Before automatic equipment parts processing or fixture processing, first find the necessary tools and tools, and prepare to start production and processing. In the aspect of cutting, the service life of the cutting tool is affected by the machine tool forward milling and reverse milling. The cutting vibration of forward milling is smaller than that of reverse milling. The cutting thickness of the cutting tool is reduced from the maximum to zero in down milling. After the cutting tool cuts into the workpiece, there will be no springing phenomenon caused by not cutting the chip. The process system has good rigidity and small cutting vibration; In reverse milling, the cutting thickness of the tool increases from zero to the maximum. At the initial stage of cutting, due to the thin cutting thickness, a path will be scratched on the surface of the workpiece. At this time, if the cutting edge meets the hard points in the graphite material or the chip particles remaining on the surface of the workpiece, it will cause the tool to bounce or chatter, so the cutting vibration of reverse milling is larger.
In the process of machining parts, when special materials are encountered, the cutting materials on the surface of the workpiece should be cleaned in time, which is conducive to reducing the secondary wear of the tool, prolonging the service life of the tool, and reducing the influence of some waste materials on the lead screw and guide rail of the machine tool. In the process of machining, select the appropriate high speed and the corresponding large feed.
Based on the above points, the material, geometric angle, coating, edge strengthening and cutting conditions of the cutting tool play different roles in the service life of the tool. A good machining tool should have smooth chip removal groove, long service life, be able to carry out rough and finish machining, and save processing cost.
The above is the understanding of machining conditions of cutting tools.
ken. tang@chengcg.com
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