Recent Trends in Fluid Mechanics

Effect of Barrel Radius on the Billet in the Upsetting Process

  1. P. Sharma
  2. M.S. Khidiya
  3. M.A. Saloda
  4. B.P. Nandwana

Abstract

Upsetting is of significance for hypothetical and experimental studies in a metal forming procedure. The need of friction between the dies and the work piece leads to cylinder barreling and lateral expansion of the specimen is at extreme at equatorial section and least at the end. This work utilizes Taguchi method with the up gradation of the procedure parameter in charge of the non-uniform hardness distribution inside the tube shaped billet, barreling behavior. The ideal parameter for procedure was recommended and ANNOVA analysis was used to note down the percent contribution. This optimum parameter reduced the indifference in the hardness distribution. Simulation study was conducted for predicting the strain distributions. In the hot forging process at the die/billet interface, influence of friction plays a significant role. In this work, the influence of varied friction conditions on the barreling behavior is studied. The friction factors of these lubricants grease (m=0.22), boric acid (m=0.30), and vaseline (m=0.29) were obtained from a ring compression test (RCT). Keywords: Upsetting process, EN8 steel, ANOVA, ring compression test, signal-to-noise (S/N) ratioCite this Article Sharma P, Khidiya MS, Saloda MA et al. Effect of Barrel Radius on the Billet in the Upsetting Process. Recent Trends in Fluid Mechanics. 2016; 3(3): 23–30p.
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