Development technique for deep drawing without blank holder to produce circular cup of brass alloy

  • Authors

    • Ali Hassan Saleh Institute of technology/Baghdad
    • Ammer Khalaf Ali
    2015-01-29
    https://doi.org/10.14419/ijet.v4i1.3516
  • Sheet Metal Forming, Deep Drawing, FEM, LDR.

  • Abstract

    Of this technique compared to the conventional deep drawing is that the circular cup can be carried out in single action press with limit In this paper a new mechanism for deep drawing was proposed to produce circular cup from thin plate without blank holder. In this technique the die assembly includes punch, die and die-punch. A 2D axisymmetric finite element model was built using DEFORM software. Effect of die geometry (half- cone angle) on maximum load, thickness distribution, strain distribution and effect of clearance ratio between punch and (die-punch) on the wrinkling of the cup were investigated. Three half-cone angles of die (15o, 30o and 45o) were used for forming sheet metal of brass (CuZn37) which had initial thickness of (1mm) at four clearance ratio (c/t) for die of 30o half-cone angle. Finite element model results showed good agreement with experimental results. Die of 30o half-cone angle with clearance ratio (c/t) of 0.9 gave the best product without wrinkling. The main advantage drawing ratio (LDR) of 1.86 and blank diameter to blank thickness ratio (d/t) < 86.

  • References

    1. [1] Serope Kalpakjian " Manufacturing Processes For Engineering MaMaterial by Addition-Wesley Publishing Company 19 19 1984. " , Copyright

      [2] Hasab-Alla I. M.," A Finite Element Simulation and Experimental Verification of the Deep Drawing of Sheet Metals Without Blankholder With Simultaneous Corrective Ironing", Ph.D thesis, Assiut university, Egypt,(1993).

      [3] I. M. Hassab-Allah, L. M. A. Hezam, and M. G. El-Sebaie," A Novel Forming Technology For Drawing Square Cups" International Conference on Production Engineering & Design For Development, PEDD7, Cairo, February 7 – 9,(2006).

      [4] L.M.A.Hezam, M.A.Hassan , I.M.Hassab-Allah, M.G.El-Sebaie," Development of a New Process For Producing Deep Square Cups Through Conical Dies" International Journal of Machine Tools & Manufacture, 49, 773–780, (2009). http://dx.doi.org/10.1016/j.ijmachtools.2009.04.001.

      [5] Hassab -Allah, I. M.," Finite Element Simulation of Square Cup Drawing Through a Conical Die " Fourth Assiut University Int. Conf. on Mech. Eng. Advanced Tech. For Indus.

      [6] Prod., December 12-14 (2006).

      [7] Abdullah A. Dhaiban, M.-Emad S. Soliman, M.G. El-Sebaie," Finite Element Modeling and Experimental Results of Brass Elliptic Cups Using a New Deep Drawing Process Through Conical dies" Journal of Materials Processing Technology ; 214, 4; 828-838, (2014). http://dx.doi.org/10.1016/j.jmatprotec.2013.11.025.

      [8] R.Uday Kumar, “Analysis of Fukui’s Conical Cup Test" International Journal of Innovative Technology and Exploring Engineering (IJITEE) ISSN: 2278-3075, Volume-2, Issue-2, January (2013).

      [9] T. Trzepiecinski," 3D elasto-plastic FEM analysis of the sheet drawing of anisotropic steel sheet" Archives of Civil and Mechanical Engineering, Vol. X, No. 4, (2010).

      [10] Anup S. Atal, M. T. Shete," Formability Analysis of Deep drawing Process by Finite Element Simulation " International Journal of Science and Research (IJSR), ISSN (Online): 2319-7064, Volume 3 Issue 6, June (2014).

  • Downloads

  • How to Cite

    Saleh, A. H., & Ali, A. K. (2015). Development technique for deep drawing without blank holder to produce circular cup of brass alloy. International Journal of Engineering & Technology, 4(1), 187-195. https://doi.org/10.14419/ijet.v4i1.3516

    Received date: 2014-09-02

    Accepted date: 2014-09-28

    Published date: 2015-01-29