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在零件加工,特别是模具加工中,常常遇到如图1所示的零件,槽宽在1mm左右的封闭形及非直线形窄槽的加工问题。若采用电火花加工,周期长,效率低,成本高。我们在使用加工中心等数控机床进行加工的实践中,摸索了一套行之有效的窄槽铣削方法,其关键是制作小直径的铣刀。图2所示,是我们制作的几种窄槽铣削用刀具。图2a、b所示刀具由中心钻改制而成。对于图2a,选用标准直径为φ1～2mm的中心钻,将刀尖磨平,然后磨出底齿。刀具几何角度参数见图。它适
In parts processing, especially mold processing, often encounter the parts shown in Figure 1, the slot width of about 1mm closed and non-linear narrow slot processing problems. If using EDM, long cycle, low efficiency, high cost. In the practice of using CNC machine tools such as machining center to process, we have explored a set of effective narrow slot milling method, the key is to make small diameter milling cutter. Figure 2 shows several of the tools we make for narrow slot milling. Figure 2a, b, the tool shown in the center drill from the system. For Figure 2a, select the standard diameter φ1 ~ 2mm center drill, the tip smooth, and then grinding the bottom teeth. Tool geometry angle parameters shown in the figure. It is suitable