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这是一种简易可行的磨硬质合金刀断屑槽方法,它不需要辅助设备,使用也很方便,值得推广。当然,在有条件的工厂也可采用电解磨削新工艺,它是基于阳极溶解原理,即使工件接正极,导电砂轮接负极,根据工件的材料不同,选用不同的电解液。例如刀具的材料为BK可用NaNO_23%,KNO_210%,酒石酸钾钠3%的水溶液;如刀具的材料为TK则可用Na NO_2 9.6%,Na_2 HPO_4 0.3%,NaNO_3 0.3%,K_2 Cr_2 O_7 0.1%的水溶液。一般是以6公斤/分的流量喷向导电砂轮与工件之间,极间电压(直流)8～10伏,电流密度20～40安/厘米~2,磨削压力1～3公斤/厘米~2。这一新工艺的优点是:磨削光洁度可达△△△△_(10),无磨削热和磨削力小,因此刀具不会产生烧伤、裂纹,而且效率高。
This is a simple and feasible method of grinding carbide cutter chipbreaker, it does not require auxiliary equipment, is also very easy to use, it is worth promoting. Of course, in the conditional factory can also use electrolytic grinding new technology, which is based on the principle of anodic dissolution, even if the workpiece connected to the cathode, the conductive wheel connected to the negative, according to the different workpiece materials, use different electrolytes. For example, the material of the tool is NaNO23%, KNO210% and potassium sodium tartrate 3% in BK; if the tool material is TK, NaNO_2 9.6%, Na 2 HPO 4 0.3%, NaNO 3 0.3%, K 2 Cr 2 O 7 0.1% . Usually 6 kg / min flow jet between the conductive grinding wheel and the workpiece, the voltage between the electrodes (DC) 8 to 10 volts, the current density of 20 ~ 40 A / cm ~ 2, grinding pressure of 1 to 3 kg / cm ~ 2. The advantages of this new process are: grinding finish of up to △△△△ _ (10), no grinding heat and grinding force is small, so the tool does not burn, crack, and high efficiency.