IIC Journal of Innovation 16th Edition | Page 73

Digital Twin and IIoT in Optimizing Manufacturing Process and Quality Management
Based on the Lean management and Six Sigma principles , the on-site discovery-research and evaluation of customer requirements focus on :
• standardization of operation : standardize operation workflows and procedures that deliver the values – quality products , against a set of constraints and uncertainties , and seek to maintain the operation standard with the software as much as possible .
• waste reduction : reduce the occurrence of defects in the products and the amount of rework needed to address quality issues . The key approach include : o to exercise the best data-driven control over the production system to maintain stability of the processes avoiding unwanted or unnecessary fluctuations ; o to discover process exceptions and quality anomalies in near real time and identify their root causes so they can be addressed in time to avoid downstream wastes ;
• continuous Improvements : to provide online visibility to the quality performance including using conventional Statistical Process Control ( SPC ) methods , however , based on real-time data so quality performance issues can be identified and addressed by enabling : o per-operator / workgroup longitudinal quality performance comparative analysis ; o cross-operator / workgroup lateral quality performance comparative analysis ; o per-product type longitudinal quality performance comparative analysis ; o cross-product type lateral quality performance comparative analysis ; o product defect multivariant-correlation analysis , considering factors in product design specification , process specification , actual process data , work procedure details , and individual operator skill levels , etc ., to identify principal factors that contribute to the occurrence of defects so measures can be taken across different areas to improve design , processes and procedures and operator skills .
- 68 - March 2021