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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part B. Journal of engineering manufacture >Machinability experimental study of sintered alumina (Al2O3) ceramics material by chemical vapor deposition diamond coating milling tools
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Machinability experimental study of sintered alumina (Al2O3) ceramics material by chemical vapor deposition diamond coating milling tools

机译:化学气相沉积金刚石涂层铣削刀具对氧化铝(Al2O3)陶瓷材料加工性能的实验研究

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摘要

The sintered alumina (Al2O3) ceramic materials featured with high temperature stability, excellent wear resistance, and high strength are highly in demand for various commercial applications. Alumina ceramics in the sintered state are difficult to machine owing to their high hardness. This research focuses on the study on the machinability of sintered alumina ceramic materials by using chemical vapor deposition diamond coating tools. Milling cutting tests are performed on a common 3-axis computer numerical control milling center. Four fluted tungsten carbide end mills with chemical vapor deposition diamond coating are utilized to machine alumina ceramics at different cutting speeds, feed rates, and widths of cut. The cutting process outcome is evaluated based on the machined surface's finish, tool wear and life, the material removal rate, and the cutting force. It is found that the milling machining process for alumina ceramic materials using chemical vapor deposition diamond coating tools is feasible with adequate machining conditions, and the machining outcome largely depends on the cutting conditions. Two alumina ceramics parts are also fabricated to demonstrate the feasibility of proposed machining processes. The details of the machining experiments and the obtained results are presented in this article.
机译:具有高温稳定性,优异的耐磨性和高强度的烧结氧化铝(Al 2 O 3)陶瓷材料是对各种商业应用的高度需求。烧结状态的氧化铝陶瓷由于硬度高而难以加工。这项研究的重点是使用化学气相沉积金刚石涂层工具对烧结氧化铝陶瓷材料的可切削性进行研究。铣削切削测试在普通的三轴计算机数控铣削中心上进行。四台带有化学气相沉积金刚石涂层的带槽硬质合金立铣刀用于以不同的切割速度,进给速度和切割宽度加工氧化铝陶瓷。根据加工表面的光洁度,工具磨损和寿命,材料去除率以及切削力来评估切削过程的结果。发现在适当的加工条件下使用化学气相沉积金刚石涂层工具对氧化铝陶瓷材料进行铣削加工的方法是可行的,并且加工结果很大程度上取决于切削条件。还制造了两个氧化铝陶瓷零件,以证明建议的加工工艺的可行性。本文介绍了机加工实验的详细信息和获得的结果。

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