本文使用切割砂輪執行切割加工，探討磨削參數對砂輪徑向磨耗與側向磨耗的影響，從實驗結果得到隨磨削參數改變的砂輪磨耗趨勢。由研究結果顯示最大切屑厚度越大增加砂輪徑向磨耗量；側向磨耗量受到側向接觸長與砂輪側向偏擺量影響。
實驗以不同的砂輪轉速與工件進給速度進行砂輪磨耗實驗，由砂輪轉速與工件進給速度決定最大切屑厚度與砂輪側向接觸長度。其中最大切屑厚度隨每轉進給增加，另外在固定的磨削長度之下，接觸長度隨進給速度增加而減少並隨著轉速增加而減少。另由實驗發現砂輪之側向偏擺量受到砂輪轉速影響，偏擺量趨勢隨砂輪轉速提高而降低，且偏擺量會增加砂輪側向每轉磨耗量，因而每轉磨耗量會隨轉速降低而升高。經由本文之研究，可了解影響側向磨耗之主要因素，利用磨削參數降低砂輪之側向磨耗量，增加砂輪的使用壽命。

This thesis investigates the effects of grinding parameters, such as wheel spindle speed and feed, on the radial and side wear of a cut-off wheel during sawing process by experiment. We can obtain the tendencies of wheel wear from experimental results. The results show that the radial wear increases with maximum chip thickness and the side wear is affected by side contact length and side runout.
Experiments of wheel wear were performed with different feed speed and rotational speed, since the maximum chip thickness and side contact length can be determined by rotational speed and feed speed. Maximum chip thickness increases with feed per round, while side contact length decreases with increasing feed speed and decreasing rotational speed under fixed grinding length. The experimental result also shows that the side runout is affected by rotational speed, the side runout decreases with rotational speed. The side runout affects the unit side wear per revolution, which increases with rotational speed. By this research, a better understanding to the wear cause of a cut-off wheel can be achieved, thus an appropriate grinding condition can be decided to maintain the wheel life.

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