金刚石微粉烧结棒和D、GC杯型砂轮修整碟型金刚石砂轮对比研究

通过对D，GC杯型砂轮和金刚石微粉烧结棒修整大直径树脂结合剂碟型金刚石砂轮的对比实验，以反映砂轮平面度的周向跳动变化率和径向跳动变化率作为修整效率的评价依据，以被修砂轮加工出硬质合金插齿刀的齿形误差作为修整质量的评价依据，从修整原理及修整模型上分析了影响修整效率和修整质量的主要因素，分析结果表明：被修砂轮金刚石颗粒微切削频率以及修整力方向对修整效率有很大的影响；修整质量与作用在被修砂轮上的修整运动有关，磨削，单用GC杯型砂轮法修整后的碟形金刚石砂轮适合于粗磨和半精磨；D，GC杯型砂轮组合修整法既具有高的修整效率也具有高的修整质量，是一种可广泛应用的修整方法。

Dressing diamond dish wheel with diamond powder sintered bar and wtih D cup wheel + GC cup wheel

Dressing experiments on large diameter diamond dish grinding wheel were carried out by using three kinds of dressing tools-diamond powder sintered bar,Diamond(D) cup wheel and green carbide(GC) cup wheel.Studies were made with the circumferential flatness and the radial flatness of the wheel face as the evaluation criterion of dressing efficiency,and with the tooth precision of the hard alloy slotting cutter as the evaluation criterion of the dressing effect.According to the dressing principle and model,the main factors which affect the dressing efficiency and dressing quality were analyzed.The results show that the tiny cutting frequency of the diamond grain on the diamond dish wheel and the direction of the dressing force,have much effect with the dressing efficiency;dressing quality is affected by the moving acting on the diamond dish wheel,the more uniform the moving is,the better the dressing quality will be.Diamond grinding wheel dressed with D cup wheel or diamond powder sintered bar could be used for finish grinding;diamond grinding wheel dressed with GC cup wheel could be used for coarse grinding or semi-finish grinding;the dressing method of D cup wheel+ GC cup wheel has superior dressing efficiency and dressing quality,it is a dressing method which can be broadly used.