Research Equipment Grant: High-Frequency Data Acquisition System

9411732韦伯斯特奖是对购买高频数据采集系统的奖励，以调查使用声发射的过程中磨削损伤评估技术。初步结果表明，使用经过滤波的信号是不够的，必须利用声发射信号产生的全部数据进行有效评估。通过购买所需设备进行的研究将调查创新的方法，以确定陶瓷和钢的传统磨削和缓动进给磨削中与工件烧伤和亚表面损伤相关的特征。磨削损伤的检测非常重要，因为这通常是对精密部件进行的最后一道工序。因此，通过改进诊断程序来更好地控制磨削损坏，对所有依赖磨削的行业都有直接的好处，因为这将导致更低的废品率和成本节约。

9411732 Webster The award is for the purchase of a high frequency data acquisition system to investigate in-process grinding damage assessment techniques using acoustic emission. Preliminary results have indicated that use of filtered signals is not adequate and that the full range of data generated by the acoustic emission signal must be used for effective assessment. The research enabled by the acquisition of the equipment requested will investigate innovative methodologies to identify signatures associated with workpiece burn and subsurface damage in conventional and creep-feed grinding of ceramics and steels. Detection of damage due to grinding is important since it is usually the final process to be carried out on a precision component. Greater control of grinding damage, by improved diagnostic procedures such as those sought here, is therefore of direct interest to all grinding-dependent industries as it would lead to lower scrap rates and cost savings.