Browsing by Keyword "Process parameters"
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Item Direct measurements and process monitoring for High Pressure Die Casting (HPDC) process(The WFO (The World Foundry Organization Ltd), 2016) Vicario, I.; Crespo, I.; Garcia, J. C.; Arratibel, E.; Aguillo, I.; Val, D.; Cao, D.; PROMETAL; CIRMETALProcess variables have a direct impact over High Pressure Die Casting (HPDC) quality parts. The measurement of metal temperature and the intensification pressure directly from the injected part, the vacuum pressure and flow and other parameters permits to determinate if the injected part is under the desired range on the controlled parameters. This work demonstrates how it's possible to have a better control of the HPDC process increasing final part quality by combining different sensors and actuators.Item Theoretical and experimental analysis of the dieless incremental sheet forming process(2006-07-03) Cerro, I.; Maidagan, E.; Arana, J.; Rivero, A.; Rodríguez, P. P.; Centros PRE-FUSION TECNALIA - (FORMER); Tecnalia Research & Innovation; SGIncremental sheet forming (ISF) is a very promising technology to manufacture sheet metal products by the CNC controlled movement of a simple forming tool. Although it is a slow process, the cost reduction linked to the fact that punches or dies are avoided, makes it a very suitable process for low series production, in comparison with the traditional stamping or drawing processes. Nevertheless, the process still needs a further optimization to guarantee the reliability required for industrial applications. Process analysis based on experimental tests and modelling is required to analyse the effect of process parameters on the characteristics of incrementally formed parts and to go deeper in the understanding of the process itself. Therefore, this paper shows preliminary results obtained with experimental tests and a simple FEM model which gives accurate prediction of some characteristics of the formed parts.