I The dynamic balance of the slitting circular blade is of great help to improve the safety of the blade, because the unbalance of the circular blade will produce an additional radial load on the spindle system, and its size is proportional to the square of the rotating speed
II The clamping method of round blade. The clamping method of round blade does not allow general friction clamping. The blade with central hole, screw clamping method, or specially designed round blade structure should be used to avoid blade flying. The clamping force direction of cutter base and blade should be the same as that of centrifugal force. The preload of screw should be controlled together to avoid early damage of screw due to overload. For small-diameter milling cutter with handle, Hydraulic chuck or thermal expansion and cold contraction chuck can be used to achieve high precision and high stiffness
III The titanium alloy of slitter blade as blade material can effectively reduce the fracture of round blade and improve its limit speed However, because titanium alloy is not very cold to the notch, it is not suitable for manufacturing the cutter body. Therefore, some high-speed milling cutters have begun to use high-strength aluminum alloy to make the cutter body
IV The stress concentration should be avoided and reduced as far as possible in the structure of the slitting round knife. The groove on the blade will cause the stress to decrease the strength of the blade. Therefore, the sharp corners at the through groove and the bottom of the groove should be avoided as far as possible
