When processing plastic by milling, a number of criteria must be observed which have a significant effect on the quality and optical properties of the Plexiglas products.
First of all, when clamping the Plexiglas sheets, we make sure that the material is as stress-free as possible so that subsequent products are also free of distortion. In addition, the following applies to the cutting edges of our CNC milling cutters: the sharper, the better! Especially when milling soft plastics, it is difficult to achieve an immaculate result if the CNC milling cutters do not work with the highest degree of sharpness. In addition to the already mentioned cooling of the milling cutter, we use the lowest possible speeds for CNC milling of plastics, so that the temperature at the infeed point is kept additionally low. Finally, we recommend deburring the material after milling, as sharp edges often appear on the plexiglass or acrylic glass in contact with the CNC milling machine, which pose a risk of injury to employees.
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