Research Equipment Grant: High-Frequency Data Acquisition System

该合同用于购买高频数据采集系统，用于研究使用声发射的过程中磨削损伤评估技术。初步结果表明，滤波信号的使用是不够的，必须使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研究创新方法，以识别陶瓷和钢的传统和蠕变进给磨削中与工件烧伤和次表面损伤相关的特征。由于磨削通常是对精密部件进行的最后工序，因此检测由于磨削造成的损伤是很重要的。通过改进诊断程序，如本文所寻求的，更好地控制磨削损坏，因此对所有依赖磨削的行业都有直接的利益，因为它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.