120 likes | 308 Views
KE22 Final Year Project. Modeling and Simulation of Milling Forces SIMTech Project. Ryan Soon, Henry Woo, Yong Boon April 9, 2011 Confidential – Internal Only. Background and Objective. Knowledge Engineering. SIMTech as a company
E N D
KE22 Final Year Project Modeling and Simulation of Milling Forces SIMTech Project Ryan Soon, Henry Woo, Yong Boon April 9, 2011 Confidential – Internal Only
Background and Objective Knowledge Engineering • SIMTech as a company • Develops high value manufacturing technology and human capital • Enhance competitiveness of Singapore manufacturing industry • Milling process • One of the many manufacturing processes research upon Students Research Industry Singapore Institute of Manufacturing Technology (SIMTech)
Introduction to Milling • A common machining process used in material manufacturing • Customized solid material can be designed and created • Consist of a milling machine, workpiece, fixture, and cutter • Can be manually operated, mechanically automated or digitally automated via Computer Numerical Control (CNC) • Scope is limited to CNC type of milling machine and its processes
Milling Process Setup An Intelligent Tool Wear and Failure Prognostic System Sensor Setup Data Acquisition Tool Wear Measurement Sensory Data Store Milling Process Pre-Processing and Feature Selection KE Models and Accuracy Evaluation Knowledge Base GUI Feedback Reduce Downtime Improved Utilization
Project Scope and Objectives KE Techniques Under Investigation
The End Q&A
INITIAL KE TECHNIQUES EVALUATION Neural Network No model required () Hard to extract the rules () Fuzzy Logic Tolerance imprecision () Membership/Rule defined () Genetic Algorithm Fitness Functions Unclear () Heuristics Search Model Required () Fuzzy Neural No model required () Rule Extraction () Case-based Reasoning Cases Available () Huge Case-Bases System () Data Mining Data Available () Rule Based Domain Rule available ()