Browsing by Keyword "milling"
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Item Analysis of the Effects of Tool Wear on Dry Helical Milling of Ti6Al4V Alloy(2015) Fernández-Vidal, S. R.; Mayuet, P.; Rivero, A.; Salguero, J.; Del Sola, I.; Marcos, M.; SGIt is not easy to find papers that contain studies about the holes development in Ti alloys by alternative machining processes such as helical milling. The increased competitiveness and legislative requirements in the aeronautical sector has caused the necessity to develop products and processes seeking the greatest profitability and sustainability, taking as reference the so-called four axes for manufacturing performance: economy, energy, environment and functionality. This work reports on the first results of a study about the influence of cutting speed and feedrate on the hole finishing in the oriented helical dry milling process of alloy Ti-6Al-4 V.Item Kerf modelling in abrasive waterjet milling using evolutionary computation and ANOVA techniques(2012) Alberdi, A.; Rivero, A.; Carrascal, A.; Lamikiz, A.; FABRIC_INTEL; SGMany researchers demonstrated the capability of Abrasive Waterjet (AWJ) technology for precision milling operations. However, the concurrence of several input parameters along with the stochastic nature of this technology leads to a complex process control, which requires a work focused in process modelling. This research work introduces a model to predict the kerf shape in AWJ slot milling in Aluminium 7075-T651 in terms of four important process parameters: the pressure, the abrasive flow rate, the stand-off distance and the traverse feed rate. A hybrid evolutionary approach was employed for kerf shape modelling. This technique allowed characterizing the profile through two parameters: the maximum cutting depth and the full width at half maximum. On the other hand, based on ANOVA and regression techniques, these two parameters were also modelled as a function of process parameters. Combination of both models resulted in an adequate strategy to predict the kerf shape for different machining conditions.