Hypothesis tests with functional data for surface quality change detection in surface finishing processes

This work is concerned with providing a principled decision process for stopping or tool-changing in surface finishing process. The supposed to products of non-flat geometry. solution based on conducting hypothesis testing the bearing area curves from two consecutive stages In each stage, curves, which are fact nonparametric quantile representing roughness, extracted profile measurements at number sampling locations products. test these informs makers whether there change quality induced by current action. When such detected, action deemed effective and should thus continue, while when no effectiveness then called into question, signaling possibly some course Application testing-based procedure both spherical flat surfaces demonstrates benefit proposed method confirms its geometry-agnostic nature.