By Yongseob Lim
ISBN-10: 1447145453
ISBN-13: 9781447145455
ISBN-10: 1447162838
ISBN-13: 9781447162834
ISBN-10: 1447162846
ISBN-13: 9781447162841
ISBN-10: 1852333057
ISBN-13: 9781852333058
Process keep watch over for Sheet-Metal Stamping provides a finished and established method of the layout and implementation of controllers for the sheet steel stamping method. using approach keep watch over for sheet-metal stamping drastically reduces defects in deep-drawn components and will additionally yield huge fabric reductions from lowered scrap. Sheet-metal forming is a posh method and in most cases characterised by way of partial differential equations which are numerically solved utilizing finite-element innovations. during this booklet, two decades of educational examine are reviewed and the ensuing know-how transitioned to the commercial setting. The sheet-metal stamping method is modeled in a fashion appropriate for multiple-input multiple-output keep an eye on process layout, with commercially to be had sensors and actuators. those versions are then used to layout adaptive controllers and real-time controller implementation is mentioned. ultimately, experimental effects from genuine shopfloor deployment are provided besides rules for additional development of the technology.
Process regulate for Sheet-Metal Stamping permits the reader to layout and enforce method controllers in a regular production surroundings by means of retrofitting ordinary hydraulic or mechanical stamping presses and as such can be of curiosity to working towards engineers operating in metal-working, automobile and aeronautical industries. educational researchers learning advancements in procedure keep an eye on and the way those impact the industries within which they're utilized also will locate the textual content of value.
Advances in commercial Controlaims to file and inspire the move of know-how up to speed engineering. The speedy improvement of regulate know-how has an influence on all parts of the regulate self-discipline. The sequence bargains a chance for researchers to provide a longer exposition of recent paintings in all points of business control.
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Additional info for Process Control for Sheet-Metal Stamping: Process Modeling, Controller Design and Shop-Floor Implementation
Sample text
Ulsoy. , Demeri, M. (1996). Dimensional Control in Sheet Metal Forming via Active Binder Force Adjustment. SME Transactions. Vol. 24 167–178. L. (1992). Improvement of Part Quality in Stamping by Controlling Blank-Holder Force and Pressure. J. of Materials Processing Tech. Vol. 33 195–214. Bohn, M. , Weinmann, Klaus J. (1998). A New Multi-point Active Drawbead Forming Die: Model Development for Process Optimization. SAE Paper. No. 980076 24–30. , Song, Nan. (2001). Next Generation Stamping Die – Controllability and Flexibility.
3, operator experience is necessary to adjust a process variable(s) at each cycle. Ultimately, the current cycle-to-cycle control, where an operator closes the loop using dimensional measurement in an otherwise open-loop process, could be improved when combined with machine control and in-process scheme. Manabe et al. (1999) proposed the use of a database for an intelligent sheet metal forming system to enable design of a process control system without experts who are skilled and experienced in the forming process.
A New Strategy to Optimize Variable Blank Holder Force towards Improving the Forming Limits of Aluminum Sheet Metal Forming. J. of Materials Processing Technology. Vol. 183 339–346. Ziegler, M. (1999). Pulsating Blankholder Technology. SAE Paper. No. 1999-01-3155 1–5. Chapter 4 Machine Control Abstract Stamping process control is achieved by commanding actuation mechanisms to appropriately vary material flow into the die during the stamping cycle, based on feedback on part quality. The actuation mechanisms in turn employ closed-loop control to achieve the desired material flow.
Process Control for Sheet-Metal Stamping: Process Modeling, Controller Design and Shop-Floor Implementation by Yongseob Lim
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