Evaluation of Quenching Methods for the Purpose of Acoustic Data Collection

Using data pertaining to the audible emission of processes has become a growing area of research in recent years. This principle has been applied to the monitoring of the heat treatment process during quenching. This work highlights the importance of a proper testing methodology when collecting such data. The primary purpose of this research paper is to compare and contrast three different methodologies for controlling the experimental process and limiting variation. The first method is manual quenching, the second method automates the process by lowering the sample into the quenching medium, and the third method automates the process by raising the quenching medium container while the sample to be quenched remains fixed. In each of these methods, a spherical acoustic microphone array was used as a beam former directed at the location in which the sample entered the quenching medium. The comparisons in this work indicate that the third option yields the most consistent and repeatable results.

近年来，利用与过程可听排放相关的数据已成为一个不断发展的研究领域。这一原理已应用于淬火过程中的热处理监测。这项工作强调了在收集此类数据时采用适当测试方法的重要性。本研究论文的主要目的是比较和对比三种不同的控制实验过程和限制变量的方法。第一种方法是手动淬火，第二种方法是通过将样品放入淬火介质中来实现过程自动化，第三种方法是在待淬火样品保持固定的情况下，通过提升淬火介质容器来实现过程自动化。在每种方法中，都使用了球形声学麦克风阵列作为指向样品进入淬火介质位置的波束形成器。这项工作中的比较表明，第三种选择产生的结果最一致且可重复性最强。