Now showing items 1-7 of 7

    • An ultra-fast annealing treatment by electropulsing during pure copper wire drawing 

      González Rojas, Hernan Alberto; Sánchez Egea, Antonio José; Hameed, Saqib; Bolmaro, Raúl (Multidisciplinary Digital Publishing Institute (MDPI), 2019-11-23)
      Article
      Open Access
      The influence of electropulses in situ on the drawing process of copper wires was investigated with the aim of avoiding time consuming annealing thermal treatments. It was found that with the application of electropulses, ...
    • Development of testing procedure for welded steel tubes 

      Hameed, Saqib (Universitat Politècnica de Catalunya, 2010-06)
      Master thesis
      Restricted access - author's decision
      The objective of this study is to perform physical tests on T-joint welded tubes to determine the axial static load behavior and compared them with the analytical and numerical calculations. Three experiments are performed ...
    • Electroplastic cutting influence in machining processes 

      Hameed, Saqib (Universitat Politècnica de Catalunya, 2017-09-22)
      Doctoral thesis
      Open Access
      The thesis presented is performed with the aim of studying the effect of electropulses (EPs) in machining processes such as drilling and round turning processes for different materials. When the EPs of short duration are ...
    • Electroplastic cutting influence on power consumption during drilling process 

      Hameed, Saqib; González Rojas, Hernan Alberto; Sánchez Egea, Antonio José; Nápoles Alberro, Amelia (2016-03-12)
      Article
      Open Access
      The aim of this study is to report the use of non-conventional material removal process technique. It was found that electropulses (EPs) assisted drilling process improves the material machinability based on the eletroplastic ...
    • Influence of the regime of electropulsing-assisted machining on the plastic deformation of the layer being cut 

      Hameed, Saqib; González Rojas, Hernan Alberto; Perat Benavides, Josep Ignasi; Nápoles Alberro, Amelia; Sánchez Egea, Antonio J (2018-05-25)
      Article
      Open Access
      In this article, the influence of electropulsing on the machinability of steel S235 and aluminium 6060 has been studied during conventional and electropulsing-assisted turning processes. The machinability indices such as ...
    • Model based on an effective material-removal rate to evaluate specific energy consumption in grinding 

      Nápoles Alberro, Amelia; González Rojas, Hernan Alberto; Sánchez Egea, Antonio José; Hameed, Saqib; Peña Aguilar, Reyna Mercedes (Multidisciplinary Digital Publishing Institute (MDPI), 2019-03-21)
      Article
      Open Access
      Grinding energy efficiency depends on the appropriate selection of cutting conditions, grinding wheel, and workpiece material. Additionally, the estimation of specific energy consumption is a good indicator to control the ...
    • Wear and MnS layer adhesion in uncoated cutting tools when dry and wet turning free-cutting steels 

      Martinez Krahmer, Daniel; Hameed, Saqib; Sánchez Egea, Antonio José; Pérez, Daniela; Canales, Javier; López de la Calle, Luís Norberto (Multidisciplinary Digital Publishing Institute (MDPI), 2019-05-08)
      Article
      Open Access
      Free-cutting steels are developed to produce large quantities of parts with low mechanical behavior, mainly for automotive sector. These alloys contain phosphorous, lead, sulfur, and manganese that help to improve the ...