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Effect of grinding fluid supply on workpiece temperature in continuous generating grinding
Journal of Manufacturing Processes ( IF 6.1 ) Pub Date : 2020-11-03 , DOI: 10.1016/j.jmapro.2020.09.072
Toru Kizaki , Keijiro Takahashi , Toshifumi Katsuma , Junichi Tanaka , Liming Shu , Naohiko Sugita

Continuous generating grinding (CGG) has been widely used as a highly efficient and precise finishing process for gears. However, due to the significant heat generation, it is necessary to supply a large amount of grinding fluid. Usually more power is consumed by the supplying system than is consumed by the processing machine itself. In industry, unnecessarily large amount of grinding fluid tends to be supplied in CGG since the influence of the supply rate on grinding temperature has not been clarified based on the basic mechanism of grinding fluid action. We have developed an on-site temperature measuring system to directly measure the grinding temperature in CGG. With this system, we were able to capture the instantaneous temperature rise. The effect of the grinding fluid supply on the temperature of the region of removal was investigated by the developed system with different rates of grinding fluid supply as 80 L/min, 140 L/min and 200 L/min. The results showed that increase of grinding fluid supply does not affect the peak temperature. The results indicated that the lubrication effect of grinding fluid was not influenced by the different supply rates in the range of 80 – 200 L/min. In addition, the peak temperature was highly affected by the depth of removal of each abrasive grit. The peak temperature varied since protrusion of each grit on grinding wheel has large variations. In addition to the peak temperature, the integrated temperature was also investigated. The results indicated that the larger amount of grinding fluid was revealed to remove the heat more efficiently in the cooling phase which follows the material removal phase. Eventually we investigated the behavior of the base temperature, which showed that the base temperature is increased when the supply rate was reduced. The overall results indicated that the lubrication effect of grinding fluid was not affected by the supply rate. However, the cooling effect of grinding fluid was affected by the supply rate. The results provided the basic knowledge of the effect of the supply rate of grinding fluid on grinding temperature in CGG, which would contribute to realization of damage-free processes with less amount of supply.



中文翻译:

连续生成磨削中磨削液供应对工件温度的影响

连续生成磨削(CGG)已被广泛用作齿轮的高效,精确的精加工工艺。但是,由于产生大量的热量,因此有必要供应大量的研磨液。通常,供应系统消耗的功率比处理机本身消耗的功率更多。在工业上,由于尚未基于磨削液作用的基本机理澄清供给速率对磨削温度的影响,趋向于向CGG中不必要地供给大量的磨削液。我们已经开发了一种现场温度测量系统,可以直接测量CGG中的研磨温度。使用该系统,我们能够捕获瞬时温度上升。通过开发的系统,以80 L / min,140 L / min和200 L / min的不同研磨液供应速率,研究了研磨液供应对去除区域温度的影响。结果表明,增加磨削液供应不会影响峰值温度。结果表明,在80 – 200 L / min的范围内,不同的供给速率不会影响磨削液的润滑效果。另外,峰值温度受每种磨料砂粒去除深度的影响很大。由于每个砂砾在砂轮上的突出具有较大的变化,因此峰值温度发生了变化。除峰值温度外,还对积分温度进行了研究。结果表明,在紧随材料去除阶段的冷却阶段,发现了更大量的研磨液,可以更有效地去除热量。最终,我们研究了基准温度的行为,结果表明,当供应速率降低时,基准温度会升高。总体结果表明,磨削液的润滑效果不受供给速率的影响。但是,磨削液的冷却效果受供给速度的影响。该结果提供了关于磨削液的供给速率对CGG中磨削温度影响的基础知识,这将有助于以较少的供给量实现无损伤的过程。这表明降低供给速率时基础温度会升高。总体结果表明,磨削液的润滑效果不受供给速率的影响。但是,磨削液的冷却效果受供给速度的影响。该结果提供了关于磨削液的供给速率对CGG中磨削温度影响的基础知识,这将有助于以较少的供给量实现无损伤的过程。这表明降低供给速率时基础温度会升高。总体结果表明,磨削液的润滑效果不受供给速率的影响。但是,磨削液的冷却效果受供给速度的影响。该结果提供了关于磨削液的供给速率对CGG中磨削温度影响的基础知识,这将有助于以较少的供给量实现无损伤的过程。

更新日期:2020-11-03
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