Elucidating Grinding Mechanism by Theoretical and Experimental Investigations.

Elucidating Grinding Mechanism by Theoretical and Experimental Investigations.
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DOI:
10.3390/ma11020274
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发表时间:
2018-02-09
期刊:
Materials (Basel, Switzerland)
影响因子:
--
通讯作者:
Chowdhury MAK
Chowdhury MAK
中科院分区:
其他
文献类型:
--
作者:
Ullah AS;Caggiano A;Kubo A;Chowdhury MAK

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磨削是用于生产基于脆性或硬质材料的精密零件(例如,光学透镜)。在磨削中,砂轮通过多次经过工件表面的同一区域来去除所需数量的材料。因此,工件表面的形貌如何随着这些道次而演变是一个重要的研究问题,这一问题尚未得到详细解决。本文从理论和实验两个方面探讨了这一问题。特别是,本文提出了多道平面磨削操作的实验和理论研究的结果,工件表面是由玻璃和砂轮组成的cBN磨料颗粒。这两项研究都证实了磨削机理中存在大量的随机性,工件表面的复杂性随着加工次数的增加而沿着增加。
Grinding is one of the essential manufacturing processes for producing brittle or hard materials-based precision parts (e.g., optical lenses). In grinding, a grinding wheel removes the desired amount of material by passing the same area on the workpiece surface multiple times. How the topography of a workpiece surface evolves with these passes is thus an important research issue, which has not yet been addressed elaborately. The present paper tackles this issue from both the theoretical and the experimental points of view. In particular, this paper presents the results of experimental and theoretical investigations on the multi-pass surface grinding operations where the workpiece surface is made of glass and the grinding wheel consists of cBN abrasive grains. Both investigations confirm that a great deal of stochasticity is involved in the grinding mechanism, and the complexity of the workpiece surface gradually increases along with the number of passes.
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