Experimental Study on Precision Grinding and Micro-groove Milling of V-shaped Micro-edge of Saw-tooth Milling Cutter
To solve the problems of high processing cost and low efficiency of micro-groove array structure with large scale,the method of CNC grinding and trimming is proposed,and the cutting edge area of the saw-tooth milling cutter is trimmed into a V-shaped micro-edge by diamond petroleum stone on the three-axis machining center.The micro-groove ar-ray milling experiment with an angle of 120° and a depth of 160μm is carried out on the aluminum alloy material by using the trimmed saw-tooth milling cutter.The results show that the edges on both sides of the V-shaped micro-edge of the trimmed saw-tooth milling cutter are regular and neat,the average angle error of the micro-groove after milling is 1.2°,and the micro-groove depth error is 1.5μm.It shows that the processing method of V-shaped micro-grooves is feasible for the saw-tooth milling cutter by trimming first and then milling.
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