NUMERICAL ANALYSIS OF THE INFLUENCE OF LUBRICATION CONDITIONS ON THE FILLING PATTERN IN A COMPLEX PROCESS OF EXTRUDING PARTICULAR HIGH-MELTING MATERIALS
DOI:
https://doi.org/10.7494/mafe.2012.38.1.13Keywords:
complex extrusion, controlled lubrication, Inconel 718 alloy, Ti-6Al-4V alloy, numerical modellingAbstract
In this paper, the process of extrusion was analyzed numerically for a axisymmetric forging model where there is a complex material flow diagram (Fig. 1a). The analysis was performed assuming a different stoke slenderness ratio so you can control how to fill the die impression (direct extrusion, in direct and side - Fig. 1b)-d), using lubricants with different values of friction factor.
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References
BehrensA., SchafstallH.: 2D and 3D simulation of complex multistage forging processes by use of adaptive friction coefficient, J. Mat. Proc. Technol., 80-81 (1998)
Sheljaskow S.: Tool lubricating systems in warm forging, J. Mat. Proc. Technol., 113 (2001)
Borsellino C, Micari F., Rusi V.F.: Warm compression of aluminium alloy axisymmetric rings, Adv. Techn. of Plasticity., 1 (1999)
SińczakJ., Bednarek S.: Fizyczne i numeryczne modelowanie procesu kucia dwufazowych stopów tytanu w warunkach izotermicznych. Prace Naukowe / Politechnika Warszawska. Seria: Mechanika, (2007), 216, 59-66