Abstract

One of the most prevalent problems in grinding nickel-based super alloys is grinding wheel loading phenomenon which is the chip accumulation in free inter granular spaces between grains or micro-clogging on active vertices of abrasive grains. This research work studies the efficiency of acoustic emission signals in order to measure the grinding performance accompanied by wheel loading. Nickel based super alloy has been used as a work piece and experiments were carried out on different levels of wheel speed (v_s), depths of wheel engagement (a) and work feed speeds (v_f). The results showed that evaluation of acoustic emission parameter as well as root mean square of acoustic emission energy (AE_RMS) and acoustic emission amplitude are the appropriate tests to predict grinding performance.

中文翻译：

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声发射法在线监测镍基超合金磨削过程

摘要

镍基超级合金磨削中最普遍的问题之一是砂轮加载现象，这是切屑堆积在晶粒之间的自由晶粒间空间中或在磨粒的有效顶点上发生微堵塞。这项研究工作研究声发射信号的效率，以便测量伴随砂轮载荷的磨削性能。镍基超级合金已被用作工件，并在不同水平的车轮速度（v _s），车轮啮合深度（a）和工件进给速度（v _f）上进行了实验。结果表明，声发射参数以及声发射能量的_均方根（AE _{RMS）的评价。}）和声发射幅度是预测磨削性能的适当测试。