Free accessResearch articleFirst published online 2009-10
An analytical,numerical,and experimental study of the effect of the parting line position in the forging process of axisymmetric parts with middle elements on one side
The effect of parting line position on the forging process parameters and metal flow behaviour is studied in this paper. It is shown that the position of the parting line affects the force and energy of forging, metal flow, and required raw materials. The results of finite element and analytical investigations are compared with experimental results, obtained on three forging dies with different parting line positions. A close agreement between the simulated and experimental results was observed.
SanieeF. F.HosseiniA. H., ‘The effects of flash allowance and bar size on forming load and metal flow in closed die forging’J. Mater. Process. Technol.177 (2006): 261–265.
2.
HartleyP.PillingerI., ‘Numerical simulation of the forging process’Comput. Methods Appl. Mech. Engng195 (2006): 6676–6690.
3.
BiswasS. K.RameshM., ‘Study of forging design using slip line field’J. Mater. Process. Technol.25 (1991): 1–13.
4.
TomovB.RadevR.GagovV., ‘Influence of flash design upon process parameters of hot die forging’J. Mater. Process. Technol.157–158 (2004): 620–623.
5.
WangJ. P.LinY. T., ‘The load analysis of the plane strain forging processes using the upper bound stream function element technique’J. Mater. Process. Technol.47 (1995): 345–359.
6.
HouJ.StahlbergU., ‘A PC-based system for automatic analysis of material flow and strains using digital image processing’J. Mater. Process. Technol.49 (1995): 165–181.
7.
KimH.SweenyK.AltanT., ‘Application of computer aided simulation to investigate metal flow in selected forging operations’J. Mater. Process. Technol.46 (1994): 127–154.
8.
LeeJ. H.KimY. H.BaeW. B., ‘An upper bound elemental technique approach to the process design of asymmetric forging’J. Mater. Process. Technol.72 (1997): 141–151.
9.
RanatungaV.GunasekeraJ. S.FrazierW. G.HurK. D., ‘Use of UBET for design of flash gap in close die forging’J. Mater. Process. Technol.111 (2001): 107–112.
10.
ChoiS. K.ChunM. S.Van TyneC. J.MoonY. H., ‘Optimization of open die forging of round shapes using FEM analysis’J. Mater. Process. Technol.172 (2006): 88–95.
11.
SanieeF. F.JaafariM., ‘Analytical, numerical and experimental analyses of the closed die forging’J. Mater. Process. Technol.125 (2002): 334–340.
12.
AltanT.BoulgerF. W.BeckerJ. R.AkgermanN.HenningH. J., Forging equipment. Materials and Practices, Metals and Ceramics Information Center, MCIC-HB-03, 1973, pp. 406–429.
13.
KurtL., Handbook of metal forming (New York: Mc Graw-Hill1985, Ch. 11).
14.
ThomasA., Die design DFRA forging handbook (Sheffield: Drop Forging Research Association1980).
