Total Inspection Scheme using AVM for Machining Precisions of Machine Tools

Abstract

The technology of Automatic Virtual Metrology (AVM) has been applied in the semiconductor industry to convert sampling inspection with metrology delay into real-time and online total inspection Nowadays as the requirements of secure mass-production and continuous improvement increase means of real-time automated total inspection in the machine-tool industry have gradually become a global trend Thus the purpose of this paper is trying to apply AVM into the machine-tool industry However machining processes will cause severe vibrations that make process data collection data cleaning and feature extraction difficult to handle These challenges are judiciously addressed and successfully resolved in this paper Practical testing-results of machining standard workpieces and cellphone shells show that the proposed AVM-based approach to accomplish total inspection of machine tools is promising Then a wheel machining automation (WMA) cell is also utilized to evaluate the performance for achieving the goal of total inspection under the mass-production environment Finally based on the merits of AVM this paper proposes a platform denoted Advanced Manufacturing Cloud of Things (AMCoT) to not only achieve the objectives of Industry 4 0 but also accomplish the goal of Zero Defects As such by applying Industry 4 0 together with AVM to achieve the goal of Zero Defects the era of Industry 4 1 is taking place The application of WMA is adopted to illustrate how AMCoT and Industry 4 1 work

Date of Award	2015 Dec 7
Original language	English
Supervisor	Fan-Tien Cheng (Supervisor)