我厂生产的制冷产品中,某些零件是有色金属件、表面焊锡件和黑色金属件,工件薄、而且面积大,磨削粗糙度高,并且零件容易产生热应力,出现弹性退让现象。为了改变磨削效果,针对铜铝合金材料具有硬度低、塑性高、热膨胀系数大等特点,采取砂轮割槽的办法,降低零件的表面粗糙度和磨削效率。具体做法是:1.选用普通的棕刚玉砂轮;2.将砂轮外圆开槽;3.正确选 I refrigeration products factory production, some parts are non-ferrous metal parts, the surface of the solder pieces and black metal parts, thin workpieces, but also large area, high grinding roughness, and parts prone to thermal stress, the emergence of a flexible concession phenomenon. In order to change the grinding effect, for copper and aluminum alloy with low hardness, high plasticity, high thermal expansion coefficient and so on, take the wheel cutting groove way to reduce the part surface roughness and grinding efficiency. The specific approach is: 1. Selection of ordinary corundum grinding wheel; 2. Grinding the wheel cylindrical; 3. Correct choice