The diameter of the internal grinding wheel should not be too large or too small.
When Grinding the inner hole, if the grinding wheel’s diameter is too large, then the contact arc between the grinding wheel and the work piece will be increased, thicken the grinding thickness, even increase the abrasive load, so it is easy to wear, it makes the surface roughness of the inner hole increases, reducing the production efficiency.
In order to obtain a good grinding effect, the diameter of the grinding wheel and the diameter of the inner hole should be kept in a proper ratio, which is usually between 0.5~0.9. When the aperture is small, the main problem is the low circumference speed of the grinding wheel, the bigger ratio should be chosen at this time; when the hole distance is small, the main problem is the cooling and chip removal difficulties, this time should prefer a smaller ratio.
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WUXI CHANGYI MACHINE TOOLS CO.,LTD.
Add: Hengxin Road No.5, Qianqiao Hengyuanxiang Industrial Park, Wuxi City, Jiangsu