Numerical/Experimental Investigations about the Warm Hydroforming of an Aluminum Alloy Component
The present work investigates the HydroForming process in warm conditions using a numerical/experimental approach; an Al alloy (AA6061 T6) component is used as case study.Experimental tests were carried out for characterizing the material and setting the numerical model.A preliminary experimental step based on both tensile and formability tests allowed to characterize both the mechanical and deformative characteristics of the material according to temperature,orientation and strain rate.Finite Element simulations using ABAQUS/explicit were carried out changing (according to a simulations plan created using the Design of Experiment approach) the process parameters which mostly affect the HF process in warm conditions: the forming pressure,both the initial and final Blank Holder pressure and the Temperature (oil pressure and Blank Holder pressure were related to the material yielding strength).The contour plots of an ad hoc response parameter (LN),able to take into account both the risk of rupture and the level of deformation,allowed to evaluate the regions where process parameters guarantee the optimal working conditions.
Warm HydroForming Finite Element Analysis Aluminum Alloy Formability
G.Palumbo A.Piccininni P.Guglielmi V.Piglionico L.D.Scintilla D.Sorgente L.Tricarico
Department of Mechanical Engineering,Mathematics and Management-Politecnico di Bari,Italy
国际会议
沈阳
英文
135-143
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）