@article{MAKHILLIJSC20138321133,
    title = {Quantifying Interface Friction Using Backward Spike and Forward Disc Forming Test},
    journal = {International Journal of Soft Computing},
    volume = {8},
    number = {3},
    pages = {143-148},
    year = {2013},
    issn = {1816-9503},
    doi = {ijscomp.2013.143.148},
    url = {https://makhillpublications.co/view-article.php?issn=1816-9503&doi=ijscomp.2013.143.148},
    author = {R. and},
    keywords = {Interface friction,disc forming,spike extrusion,calibration curves,lubricants},
    abstract = {Interface friction plays an important role in cold forming 
  and forging. Since, this shear force if not taken care of would cause many defects 
  and problems, it is essential to measure and control this entity. Using backward 
  spike and forward disc forming test, this interface friction is quantified. 
  A cylindrical billet is extruded to form a backward spike on one side and upset 
  to form a forward disc on the other. Aluminium alloy 6063 is used as the specimen 
  billet material. Simulations are carried out for various combinations of height/diameter 
  of the specimen billet and for different spike diameters. The ratio of the height 
  of the spike to the disc diameter is the measure of the interface friction. 
  This ratio is then plotted in a graph to form the calibration curves using which 
  the interface friction present during the forming process is quantified.}
    }