轧辊磨削过程中砂轮磨损对比与功率监测

Contrast and power monitoring of wheel wears in roller grinding processes

为解决磨削大型零件时进刀不均匀、效率低的问题,以轧辊磨削为例,对比CBN砂轮和氧化铝砂轮的主轴功率和加工性能。发现:由于砂轮磨损,轧辊磨削的效率及尺寸精度低;相同条件下,树脂结合剂CBN砂轮的效率比氧化铝砂轮高150%;去除同样轧辊材料时,CBN砂轮的磨损量最多是氧化铝砂轮的1/9。CBN砂轮由于磨粒硬度高、把持力强,可以改善大型零件加工时进刀不均匀、效率低的情况。

To solve the problems of uneven cutting and low efficiency when machining large components,roller grinding is taken as an example to compare and study the spindle powers and wheel performances of CBN or Al 2O 3 grinding wheels.Results show that the efficiency and accuracy of roller grinding are low due to wheel wear.It is also found that at the same condition,the efficiency of CBN wheel is 150% higher than that of Al 2O 3 wheel,and that the wear of CBN wheel is one ninth of that of the other wheel when removing the same amount of material.In conclusion,CBN grinding wheel could improve the cutting uniformity and efficiency when machining large components due to its high grain hardness and strong bond.