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首页> 外文期刊>Journal of Manufacturing Processes >Ultraprecision ductile mode machining of glass by micromilling process
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Ultraprecision ductile mode machining of glass by micromilling process

机译：微铣削加工玻璃的超精密延性模加工

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摘要

Glass is considered as a difficult-to-machine material because of its susceptibility to brittle fracture during machining. To avoid brittle fracture and achieve superior surface finish, glass must be machined in ductile mode. Mostly, ductile mode machining is performed by a single point cutting tool. This paper presents the results of an experimental study to achieve ductile mode machining of glass by micromilling process. Fracture-free slots have been cut in soda-lime glass workpiece by micro-endmilling. Experimental results have established that fracture-free slots can be machined in glass by micromilling process within the controlled set of cutting conditions. These cutting conditions are conducive to highly compressive hydrostatic stresses developed in the cutting zone to suppress the crack propagation during machining. The feed per edge and the axial depth of the cut have been identified as the critical factors for the ductile-brittle transition in microcutting of glass by milling process.
机译：由于玻璃在加工过程中易碎，因此被认为是难加工的材料。为避免脆性断裂并获得优异的表面光洁度，必须以延性模式加工玻璃。通常，延性模式加工是通过单点切削工具执行的。本文介绍了通过微铣削工艺实现玻璃的延性加工的实验研究结果。通过微立铣刀在钠钙玻璃工件上切出了无裂纹的槽口。实验结果表明，可以在受控的切削条件下通过微铣削工艺在玻璃上加工无裂缝的缝隙。这些切削条件有利于在切削区域产生高压缩静液压，以抑制加工过程中的裂纹扩展。每个边缘的进给量和切口的轴向深度已被确定为通过铣削工艺对玻璃进行微切割时韧性-脆性转变的关键因素。

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  • 来源
    《Journal of Manufacturing Processes》 |2011年第1期|p.50-59|共10页
  • 作者

    Muhammad Arif; Mustafizur Rahman; Wong Yoke San;

  • 作者单位

    Department of Mechanical Engineering, National University of Singapore, 9-Engineering Drive I, Singapore 117576, Singapore;

    Department of Mechanical Engineering, National University of Singapore, 9-Engineering Drive I, Singapore 117576, Singapore;

    Department of Mechanical Engineering, National University of Singapore, 9-Engineering Drive I, Singapore 117576, Singapore;

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