Machinability of Kevlar® 49 Composite Laminates While Using Standard TiN Coated HSS Drills
Machinability of Kevlar® 49 Composite Laminates While Using Standard TiN Coated HSS Drills
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DOI：
10.1081/mst-200041116
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发表时间：
2004-12
影响因子：
2.7
通讯作者：
A. Shuaib;F. Al-Sulaiman;F. Hamid
中科院分区：
文献类型：
--
作者：
A. Shuaib;F. Al-Sulaiman;F. Hamid
摘要本文讨论了不同厚度的平纹编织Kevlar® 49预浸复合材料层压板在使用135°分点TiN涂层6 mm直径HSS钻头时的可加工性。复合材料制备参数和钻孔条件对层压板的可加工性的影响进行评估，使用钻孔推力，切削扭矩，和特定的切削能量。层压板的厚度和加工时间以及钻孔工艺参数被发现影响推力和扭矩的最大值以及钻孔的质量。已发现加工凯夫拉复合材料时所用钻头的磨损特征与钻削金属和合金时发生的传统磨损模式不同。
Abstract This article addresses the machinability of plain weave Kevlar® 49 prepeg composite laminates of different thickness while using 135° split-point TiN coated 6 mm diameter HSS drills. The effect of composite preparation parameters and the drilling conditions on the machinability of the laminates is assessed using the drilling thrust force, cutting torque, and specific cutting energy. The thickness and processing time of the laminates as well as the drilling process parameters were found to influence the maximum value of thrust force and torque as well as the quality of drilled holes. The wear features of the drills used in machining Kevlar composites have been found to be different from the conventional wear patterns that occur during drilling metals and alloys.