LUBRICATION CONDITIONS INFLUENCE ON THE FILLING PROCESS OF DIE IMPRESION IN COMPLEX FORGING EXTRUSION OF A95456 ALLOY
DOI:
https://doi.org/10.7494/mafe.2009.35.1.27Keywords:
A95456 alloy, complex extrusion process, lubrication, effective strain, vectors of the metal displacementAbstract
In the paper was analysed the rheology of metal flow in complex die forging process with closed-die with domination of direct and indirect extrusion beside different lubrication conditions on the die impression. It was found that apply of suitably diversified lubrication conditions brings favourable effect in form of decrease of the deformation energy and simultaneously favourable influence on the uniform deformation in whole volume of the forging.
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References
Behrens A., Schafstall H. : 2D and 3D simulation of complex multistage forging processes by use of adaptive friction coefficient, J. Mat. Proc. Technol., vol. 80-81, 1998
Sheljaskow S.: Tool lubricating systems in warm forging, J. Mat. Proc. Technol., vol. 113, 2001
Borsellino C., Micari F., Rusi V.F.: Warm compression of aluminium alloy axisymmetric rings, Adv. Techn. of Plasticity., vol. 1, 1999
Spackman P.K.: An overview of lubrication of the more common aluminium forming processes, Metallurgia, vol. 67, nr 8, 2000
Barykin N.P., Popov W.I., Semenov W.I.: Smary do kształtowania na gorąco wyrobów ze stopów aluminium, Obr. Plast. Met. nr 5, 1994
