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How to improve the work efficiency of CNC milling cutters? Professional answers from Shenzhen Jingdi

Date:06-24    Belong to:Company News
CNC milling cutters are the main cutting tools for mold processing, accounting for about 80% -90% of the total cutting volume of molds, making them the focus of development for mold processing tools. Developing new cutting tools can improve machining efficiency and improve machining results. The following three points can also be used as methods to improve the efficiency of CNC milling cutters< Br style="color: RGB (51, 51, 51); font family: Tahoma, Arabic, 'Microsoft Yahei';"/>


1. Reduce the quality of cutting tools, reduce the number of cutting tool components, simplify the structure of cutting tools. In the structure of the cutting tool body, attention should be paid to avoiding and reducing stress concentration. The grooves on the blade body (including the blade seat groove, chip holding groove, and keyway) can cause stress concentration and reduce the strength of the blade body. Therefore, it is advisable to avoid through grooves and sharp corners at the bottom of the grooves as much as possible. At the same time, the structure of the cutter body should be symmetrical to the rotation axis, so that the center of gravity passes through the axis of the milling cutter. The clamping and adjustment structure of the blade and blade holder should eliminate clearance as much as possible and require good repeatability of positioning. High speed milling cutters have widely used HSK tool holders to connect with machine tool spindles, greatly improving the stiffness and repeated positioning accuracy of the tool system, which is conducive to the advancement of the tool fracture limit speed< Br style="color: RGB (51, 51, 51); font family: Tahoma, Arabic, 'Microsoft Yahei';"/>


2. Improve the clamping method of the cutting tool. Simulation calculations and fracture tests have shown that the clamping method of high-speed milling cutter blades usually does not use frictional clamping, but requires the use of blades with central holes, screw clamping, or specially designed tool structures to prevent blade flying. The clamping force direction of the knife holder and blade should be consistent with the centrifugal force direction, and the pre tightening force of the screw should be controlled to prevent the screw from being damaged in advance due to overload< Br style="color: RGB (51, 51, 51); font family: Tahoma, Arabic, 'Microsoft Yahei';"/>

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