A multi-step analysis for determining admissible blank-holder forces in deep-drawing operations

In present investigation a methodology to determine admissible blank-holder forces in deep-drawing operations was established. According to this methodology, the deep-drawing operation is simulated and the maximum blank-holder forces, for stamping friction stir welded tailored blanks, are established based on the comparison of the numerical principal strains fields, obtained in the numerical simulations, with the limiting strains determined analytically for both base materials. Supporting experiments were performed and its results used to confirm the quality of the numerical predictions.

[1]  Influence of the Weld on the Mechanical Behaviour of Tailor Welded Blanks , 2006 .

[2]  R. M. Leal,et al.  Mechanical behaviour of similar and dissimilar AA5182-H111 and AA6016-T4 thin friction stir welds , 2009 .

[3]  Luís Menezes,et al.  Automatic correction of the time step in implicit simulations of the stamping process , 2004 .

[4]  R. Padmanabhan,et al.  Influence of process parameters on the deep drawing of stainless steel , 2007 .

[5]  Pedro Vilaça,et al.  Material flow in heterogeneous friction stir welding of thin aluminium sheets: Effect of shoulder geometry , 2008 .

[6]  Tohru Yoshida,et al.  Prediction of limit strain in sheet metal-forming processes by 3D analysis of localized necking , 2000 .

[7]  Luís Menezes,et al.  Improvement of a frictional contact algorithm for strongly curved contact problems , 2003 .

[8]  Luís Menezes,et al.  Numerical simulation and analysis on the deep drawing of LPG bottles , 2008 .

[9]  Dorel Banabic,et al.  Prediction of the influence of yield locus on the limit strains in sheet metals , 2001 .

[10]  Ana Reis,et al.  The use of finite element simulation for optimization of metal forming and tool design , 2001 .

[11]  Z. Marciniak,et al.  Limit strains in the processes of stretch-forming sheet metal , 1967 .

[12]  Abel D. Santos,et al.  Tailored welded blanks––an experimental and numerical study in sheet metal forming on the effect of welding , 2004 .

[13]  Thomas B. Stoughton,et al.  A general forming limit criterion for sheet metal forming , 2000 .

[14]  S. A. Majlessi,et al.  A review of recent advances in the application of blank-holder force towards improving the forming limits of sheet metal parts , 1998 .

[15]  W. Hosford,et al.  Calculations of forming limit , 1993, Metallurgical and Materials Transactions A.

[16]  Luís Menezes,et al.  Algorithms and Strategies for Treatment of Large Deformation Frictional Contact in the Numerical Simulation of Deep Drawing Process , 2008 .

[17]  John A. Williams,et al.  The use of a shear instability criterion to predict local necking in sheet metal deformation , 1983 .

[18]  A. A. Zadpoor,et al.  Mechanics of Tailor Welded Blanks: An Overview , 2007 .

[19]  Amit K. Ghosh,et al.  Effects of strain path changes on the formability of sheet metals , 1978 .

[20]  J. Lian,et al.  Forming limit diagram of sheet metal in the negative minor strain region , 1987 .

[21]  Luís Menezes,et al.  Study on the influence of work-hardening modeling in springback prediction , 2007 .

[22]  Luís Menezes,et al.  Numerical study of the plastic behaviour in tension of welds in high strength steels , 2004 .

[23]  Jørgen Amdahl,et al.  Analytical and numerical analysis of sheet metal instability using a stress based criterion , 2008 .

[24]  P. Manach,et al.  Material parameters identification: Gradient-based, genetic and hybrid optimization algorithms , 2008 .

[25]  W. Hosford,et al.  Calculations of forming limit diagrams for changing strain paths , 1993 .

[26]  R. Hill,et al.  On discontinuous plastic states, with special reference to localized necking in thin sheets , 1952 .

[27]  Luís Menezes,et al.  Three-dimensional numerical simulation of the deep-drawing process using solid finite elements , 2000 .

[28]  R. Padmanabhan,et al.  Effect of anisotropy on the deep-drawing of mild steel and dual-phase steel tailor-welded blanks , 2007 .