... been selected for the design of control system. Closed-loop control experiments verified the effectiveness of developed control system. plasma arc welding manual pipe welding process control trajectory tracking predictive control Welding technology has been developed for decades...

... Modeling and Process Control of Electrically-Assisted Forming (EAF) for Sheet Metals in Uniaxial Tension ,” Ph.D. dissertation, Clemson University, Clemson, SC. [12] Zirn , O. , Jaeger , C. , and Scholler , T. , 2008 , “ Model Based Control of Machine Tool Manipulators ,” Proceedings...

.... One of the challenges in THF is the nonlinear and varying friction conditions at the tube-tool interface, which make it difficult to establish accurate loading paths (pressure versus feed) for THF. A THF process control model that can compensate for the loading path deviation due to frictional errors...

... , Han , X.-h , and Rong , A. , 2004 , “ Application of MCGS for Process Control and Realtime Detection in the Process of Friction Stir Welding ,” 8th International Conference on Control, Automation, Robotics and Vision Kunming, China , pp. 499 – 503 . 18 Arbegast , W. J. , 2005...

... process control to track the process consistency. However, no single control strategy or system design has been universally successful, and defective components are continuing to be manufactured during high volume production. The closest known work to this research is that of Anthony Bur of National...

... cladding techniques closed loop systems height measurement image processing process control production engineering computing robust control time-varying systems uncertain systems variable structure systems Laser cladding by powder injection is a revolutionary method of materials deposition...

... quality. chemical industry materials handling polymer films process control rollers (machinery) web production process web system modeling forward draw speed estimation large-scale systems feed-forward control This paper describes the modeling of the forward draw in a large-scale...

... scheduling wear grinding dynamic programming evolutionary algorithm batch production process control The grinding process is placed at the end of a production line for finishing parts with a fine surface finish and a high dimensional accuracy. The most significant impact on the overall...

...T. A. Palmer; J. W. Elmer Process control in electron beam welding is typically based on control of machine settings, such as accelerating voltage, beam current, focus coil current, and vacuum level. These settings, though important, provide little insight into the characteristics of the beam used...

... of tolerance and process control reasons. Previous experimental and modeling work in LTW has focused on gap-free joints, with little attention to bridging a gap with thermal expansion of the absorbing material. A two-dimensional comprehensive numerical model simulated bridging gaps in LTW. Using the model...

... of the contour type. 25 07 2006 06 06 2007 machine tools machining motion control precision engineering process control servomechanisms state feedback stiction surface topography precision motion control friction compensation disturbance estimation Kalman filtering...

... optimization. Two general conclusions result. First, velocity and pressure profiling provide important degrees of freedom for optimizing process control and maximizing part quality. Second, estimators for unobservable process states, in this case birefringence and warpage, can be used to develop different...

... of Ultrasonic Bonding for Rapid Prototyping ,” Journal of Manufacturing Science and Technology , 124 , pp. 426 – 434 . microsensors condition monitoring process control rapid tooling machine tools batch production systems electroplating ultrasonic welding Real time monitoring, diagnosis...

... , “ Consolidation Experiments for Laminate Composites ,” J. Compos. Mater. 0021-9983 , 21 , pp. 650 – 669 . 24 10 2005 15 08 2006 pultrusion injection moulding transfer moulding resins process control composite materials chemical industry design engineering viscosity finite...

... but the adaptation can be relatively quick. 31 05 2005 28 06 2006 process control welds arc welding sensors pipes quality management Critical joining requires 100% full penetration. To meet this requirement, the back-side width of the weld pool can be measured, controlled...

... by numerous process parameters. The goal of the investigation is to specify the main process parameters and the values that provide for stable and repeatable process. Based on theoretical and experimental consideration of LDFP, a methodology for estimation of process control parameters is proposed. Estimation...

... variational techniques manufacturing systems process capability analysis process planning process control state-space methods A multistage manufacturing system (MMS) involves multiple stages or operations to fabricate a product. Examples of MMSs include engine head machining systems or automotive...

.... The microprocessor architecture can be generally divided into three levels: servomechanism control loop, interpolator loop, and process control loop as shown in Fig. 6 . The servomechanism controllers regulate the velocity and position of individual axes and spindles and interpolators generate the reference...

... in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING . Manuscript received April 2002; Revised December 2002. Associate Editor: S. Schmid. 01 April 2002 01 December 2002 23 07 2003 forming processes metalworking process control The inherent variability present...

... demonstrate that the proposed controller is able to maintain tighter performance bounds than robust controllers that include known process changes in the model parameter variations. 01 July 2001 01 December 2002 23 07 2003 machining cutting force control robust control process...