Sheet Metal Fabricator
Process Control for Sheet-Metal Stamping is a comprehensive and structured approach to the design and implementation of controllers for the sheet metal stamping process. The use of process control for sheet-metal stamping greatly reduces defects in deep-drawn parts and can also yield large material savings from reduced scrap. Sheet-metal forming is a complex process and most often characterized by partial differential equations that are numerically solved using finite-element techniques. In this book, twenty years of academic research are reviewed and the resulting technology transitioned to the industrial environment. The sheet-metal stamping process is modeled in a manner suitable for multiple-input multiple-output control system design, with commercially available sensors and actuators. These models are then used to design adaptive controllers and real-time controller implementation is discussed. Finally, experimental results from actual shopfloor deployment are presented along with ideas for further improvement of the technology. Process Control for Sheet-Metal Stamping allows the reader to design and implement process controllers in a typical manufacturing environment by retrofitting standard hydraulic or mechanical stamping presses and as such will be of interest to practising control engineers working in metal-working, automotive and aeronautical industries. Academic researchers studying improvements in process control and how these affect the industries in which they are applied will also find the text of value.
The memoir of a slave girl coming of age during the Civil War. Afion recalls her lover, her friends, the war and her losses as she talks about growing up in Granny Moses' cabin on the creek, seeing her best friend taken away by wagon. At the age of nine the wagon comes for her, and she becomes a kitchen servant. Using her talent and ingenuity, Afion becomes the personal servant to the master's daughter. Her lover promises they will jump the broom when freedom comes, but he runs away and joins the Union Army. Afion does not know what freedom is. Her best friend Cookie tastes forbidden love when she falls in love with the master's son. But when fighting draws near the farm, Master Halloway abandons the plantation taking his family, their valuables and favorite servants. Afion is left behind. She fears the loss of the meager food supply, and when the sugar house and the smoke house are broken into, the food is stolen but not by Union soldiers.The Gazebo, a Civil War Memoir is one of the best historical books to date about growing up black during the Civil War.
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