By Lihui Wang, Robert X Gao
Situation modelling and keep watch over is a method used to let decision-making in production methods of curiosity to researchers and practicing engineering. tracking and keep an eye on for clever production should be received by way of researchers and graduate scholars in production and regulate and engineering, in addition to practicing engineers in industries akin to car and packaging production.
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Extra resources for Condition Monitoring and Control for Intelligent Manufacturing (Springer Series in Advanced Manufacturing)
Wu, 1991, “Real-time compensation for time-variant volumetric error on a machining center,” ASME Winter Annual Meeting, Atlanta, Georgia, December. Lo, C. C. and Y. Koren, 1992, “Evaluation of servo-controllers for machine tools,” Proceedings of the American Control Conference, Chicago, IL, pp. 370–374, June. Koren, Y. and C. C. Lo, 1991, “Variable-gain cross-coupling controller for contouring,” CIRP Annals, Vol. 40, No. 1, pp. 371–374. , 1993, “On the design of digital tracking controllers,” ASME J.
Errors in the flank wear estimate are less than 50 Pm (2×10–3 inch) over the entire cutting period, and improve as the cutting proceeds towards the end of the tool life. 20 Measured vs. 8. 63] The two main issues in tool wear regulation are compensation for tool wear and control of the tool wear rate. As the tool wears, the workpiece dimension may become out of tolerance. The tool position must be adjusted (typically through the part program) to compensate for the tool wear. From an economic point of view, it is desirable to regulate the tool wear rate such that the tool life corresponds to the scheduled tool change period in mass production, or to maximize the tool life in job shop situations.
At the supervisory control level, additional control and monitoring capabilities (e. g. sensor fusion, chatter detection, tool and machine condition monitoring, online process optimization) have been incorporated. A supervisory controller for through-hole drilling (which simultaneously ensures good hole quality, eliminates breakage, reduces burr formation, and maximizes throughput) was presented. To date, the impact of these research developments on industrial practice, most of them demonstrated in the laboratory, has been modest.