A Decision Support System for Capturing CNC Operator Knowledge
Wikan Sakarinto, Hiroshi Narazaki, and Keiichi Shirase
Department of Mechanical Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokko-dai, Kobe, Hyogo 657-8501, Japan
The main job of Computer Numerical Control (CNC) operators is to capture and use knowledge to assess product data. CNC operators assess Computer-Aided Manufacturing (CAM) files before proceeding to CNC machining processes. Decision Support Systems (DSS), for these operators, is provided by Expert Systems (ES) designed to manage and learn intelligently from previous data and information and produce recommended actions and decisions. The purpose of the DSS is (i) to assist inexperienced operators in assessment using stored know-how of experienced operators and to collect additional knowledge in interaction between the DSS and experienced operators during semiautomatic assessment, and (ii) to present collected knowledge to users based on contexts or constraints the user must deal with in product data assessment. After outlining the DSS, the discussion is about its usefulness in dealing information and knowledge discrepancies between CAM and CNC operators – an important problem in practice that has been rather neglected so far – focusing on CNC milling operations.
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