Effect of cutting edge truncation on ductile-regime grinding of hard and brittle materials
Effect of cutting edge truncation on ductile-regime grinding of hard and brittle materials
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DOI：
10.1504/ijmtm.2006.009995
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发表时间：
2006-06
期刊：
影响因子：
--
通讯作者：
X. Kang;J. Tamaki;A. Kubo
中科院分区：
文献类型：
--
作者：
X. Kang;J. Tamaki;A. Kubo
切削刃截断是一种微整形工艺，其中砂轮的金刚石切削刃被截断并在相同高度对齐。该工艺已应用于硬脆材料的超精密磨削，以改善磨削表面粗糙度。然而，理论上的研究还没有得到澄清。在这项研究中，计算机模拟的表面切入磨削已进行。据发现，在纳米级的表面粗糙度可以产生的粗粒度砂轮的截断，但这种截断的最大晶粒切削深度的减少的贡献是不够的。因此，选择合适的细磨粒砂轮和合适的磨削条件对于延性磨削是必要的，因为延性磨削要求最大磨粒切削深度小于实现延性模式材料去除的值。
Cutting edge truncation is a micro-truing process in which the diamond cutting edges of a grinding wheel are truncated and aligned at the same height. This process has been applied to the ultraprecision grinding of hard and brittle materials in order to improve the ground surface roughness. However, the theoretical investigation has not been clarified. In this study, computer simulation of surface plunge grinding has been performed. It is found that a surface roughness in the nanometer order can be generated by the truncation of a coarse-grained grinding wheel, but the contribution of such truncation to a decrease in the maximum grain depth of cut is insufficient. Thus, the proper selection of a fine-grained grinding wheel as well as suitable grinding conditions are necessary for ductile-regime grinding, which requires the maximum grain depth of cut to be less than a value realising ductile-mode material removal.