Hypothesis tests with functional data for surface quality change detection in surface finishing processes
Hypothesis tests with functional data for surface quality change detection in surface finishing processes
复制标题
使用功能数据进行假设检验，用于表面精加工过程中表面质量变化检测
DOI：
10.1080/24725854.2022.2113481
复制
发表时间：
2022
影响因子：
2.6
通讯作者：
Jin, S.
中科院分区：
文献类型：
--
作者：
Jin, S.
这项工作是关于提供一个原则性的决定过程中停止或更换刀具的表面精加工过程。该决策过程应该适用于非平面几何形状的产品。该解决方案是基于对表面精加工过程的两个连续阶段的轴承面积曲线进行假设检验。在每个阶段，轴承面积曲线，这实际上是非参数分位数曲线表示的表面粗糙度，从表面轮廓测量中提取的产品表面上的一些采样位置。这些曲线的假设检验告知决策者当前精加工操作是否引起表面质量的变化。当检测到这种变化时，当前动作被认为是有效的，因此应该继续，而当没有检测到变化时，当前动作的有效性就受到质疑，这可能表明动作过程中发生了一些变化。基于假设检验的决策过程中的应用，球面和平面证明了所提出的方法的有效性和好处，并确认其几何不可知的性质。
This work is concerned with providing a principled decision process for stopping or tool-changing in a surface finishing process. The decision process is supposed to work for products of non-flat geometry. The solution is based on conducting hypothesis testing on the bearing area curves from two consecutive stages of a surface finishing process. In each stage, the bearing area curves, which are in fact the nonparametric quantile curves representing the surface roughness, are extracted from surface profile measurements at a number of sampling locations on the surface of the products. The hypothesis test of these curves informs the decision makers whether there is a change in surface quality induced by the current finishing action. When such change is detected, the current action is deemed effective and should thus continue, while when no change is detected, the effectiveness of the current action is then called into question, signaling possibly some change in the course of action. Application of the hypothesis testing-based decision procedure to both spherical and flat surfaces demonstrates the effectiveness and benefit of the proposed method and confirms its geometry-agnostic nature.
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