Effect of barrel radius on the billet In the Upsetting process
Keywords:
ANNOVA, RCT, CTMAbstract
Upsetting is the primary technique to form the material to gain importance in the manufacturing industry. It is well known that the increase in level of deformation increases the hardness of material. The hardness distribution is not uniform and will vary inside the billet at different point because of barreling nature of the billet. the present work is to optimize the process parameter responsible for the non-uniform hardness distribution inside the billet, Barreling behaviour and the deformation load using Taguchi technique. The optimum process parameter were suggested and the percentage of contribution of each parameter were noted down using ANNOVA analysis. 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). .
References
- Banerjee J. K.,."Barreling of Solid Cylinders Under Axial Compression”. Journal of Engineering Materials and Technology, 107 ,2,1985 ,pp. 138-144 ,doi:10.1115/1.3225789.
- Haluk T and Sonmez F. O."Optimum shape design of die and preform for improved hardness distribution in cold forged parts" .journal of materials processing technology. 209, pp. 1538-1549.
- Rao K.P. and Xie C.L. ,. "A comparative study on the performance of boric acid with severalconventional lubricants in metal forming processes". Tribology International .2006, 39 7,pp. 663–668..
- HariKrishna et al."Effect of Lubrication and Anisotropy on Hardnessin the Upsetting Test".Transactions of the Indian Institute of Metals 2015 ,69 ,7 ,pp.1459-1457 .
- Sonmez F. O. , Ahmet D. ."Analytical relations between hardness and strain for cold formed parts".Journalof Materials Processing Technology,2007,186, pp. 163–173.
- Baskaran K. and Narayanasamy R.,.Some aspects ofbarreling in elliptical shaped billets of aluminium during cold upset forging with lubricant. Materials and Design2008,29, 3 pp. 638–661.
- Wei Jianjun ,ErdemirAli and Fenske R.George, " Dry Lubricant Films for Aluminum Forming"2000,43,3 pp. 535-541,DOI: 10.1080/10402000008982374.
- , Ebrahimib H.and Parvizianc J.,"Flow stress behaviorof two stainless steels And experimental–numerical investigation".Journal of Materials ProcessingTechnology, 2008 199,1–3, pp. 287–294.
- Baskaran K. and Narayanasamy R.,."Some aspects of barreling in elliptical shaped billets of aluminium during cold upset forging with lubricant". Materials and Design2008,29 ,3,pp. 638–661
Downloads
Published
Issue
Section
License
Copyright (c) IJSRSET

This work is licensed under a Creative Commons Attribution 4.0 International License.