SPRINGBACK PREDICTION IN SHEET METAL FORMING PROCESSES

The objective of this paper is springback determination of sheet metals in various cases in air bending process. The practical part consists of two parts. First part deals with experiment of air bending process using three different categories of steel, different bending depths and different die geometry. Influence of these technological variables is illustrated and compared with results of numerical simulation of these processes. Implicit and explicit commercial codes were used. This paper used a modern measurement methods performed in MATLAB system.

[1]  Jacques Besson,et al.  Analysis of the air-bending test using finite-element simulation: Application to steel sheets , 2012 .

[2]  H. P. Lee,et al.  Finite element analysis of springback in L-bending of sheet metal , 2005 .

[3]  Joaquim Ciurana,et al.  Springback determination of sheet metals in an air bending process based on an experimental work , 2007 .

[4]  Xianghuai Dong,et al.  The GTN damage model based on Hill'48 anisotropic yield criterion and its application in sheet metal forming , 2009 .

[5]  G. Davies,et al.  Chapter 3 – Materials for consideration and use in automotive body structures , 2012 .

[6]  Gary L. Kinzel,et al.  An experimental investigation of the influence of the Bauschinger effect on springback predictions , 2001 .

[7]  R. H. Wagoner,et al.  DIE DESIGN METHOD FOR SHEET SPRINGBACK , 2004 .

[8]  G. Kinzel,et al.  A new model for springback prediction in which the Bauschinger effect is considered , 2001 .

[9]  Dorel Banabic,et al.  Sheet Metal Forming Processes: Constitutive Modelling and Numerical Simulation , 2010 .

[10]  Taylan Altan,et al.  Springback Prediction in Bending of AHSS-DP 780 , 2012 .

[11]  Daimler Ag,et al.  Simulation of Sheet Metal Forming - Necessary Developments in the Future 1 , 2008 .

[12]  Taylan Altan,et al.  Prediction and elimination of springback in straight flanging using computer-aided design methods: Part 2: FEM predictions and tool design , 2001 .

[13]  E. V. ter Wijlen Optimisation of a deep drawing process with experimental validation: Applied to an automotive deep drawing process of a B-pillar , 2007 .

[14]  José Divo Bressan,et al.  A Numerical Simulation Study of Deep Drawing Testing and Experimental Results of Steel Sheets, Using a Comercial Software , 2010 .

[15]  Aurelian Albut,et al.  The influence of the rolling direction of the joined steel sheets on the springback intensity in the case of Ω-shape parts made from tailor welded strips , 2006 .

[16]  G. Widera,et al.  Handbook of Metal Forming , 1985 .

[17]  Mostafa Shazly,et al.  Springback prediction in V-die bending: modelling and experimentation , 2010 .

[18]  B. K. Choudhary,et al.  Universal scaling of work hardening parameters in type 316L(N) stainless steel , 2010 .

[19]  Leo De Vin,et al.  Curvature prediction in air bending of metal sheet , 2000 .

[20]  N. Ramakrishnan,et al.  Semi analytical modeling of springback in arc bending and effect of forming load , 2011 .

[21]  Igor Alexandrovich Burchitz,et al.  Improvement of springback prediction in sheet metal forming , 2008 .

[22]  George Sachs,et al.  Principles and methods of sheet-metal fabricating , 1951 .