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Information Seminar Paper

Title

AN ANALYSIS OF THE FORMABILITY OF TWO-LAYER METALLIC SHEETS BY THE EXPERIMENT AND FINITE ELEMENT METHOD

Pages

 Start Page | End Page

Abstract

 IN THIS PAPER, THE EFFECTS OF VARIOUS PARAMETERS ON THE LIMIT DRAWING RATIO (LDR) IN DEEP DRAWING OF TWOLAYER (ALUMINUM-ST12) METALLIC SHEETS AND CHANGES ON PROCESS CONDITIONS WERE INVESTIGATED THROUGH A NUMERICAL SIMULATIONS AND EXPERIMENTS. THE PURPOSE OF THIS RESEARCH WAS TO OBTAIN MORE FORMABILITY IN DEEP DRAWING PROCESS. THE LDR HAS BEEN OBTAINED IN DEEP DRAWING OF TWO-LAYER METALLIC SHEETS, WITH ALUMINUM INNER LAYER WHICH WAS IN CONTACT WITH THE PUNCH AND STEEL OUTER LAYER WHICH WAS IN CONTACT WITH THE DIE, AND SIMULATION RESULTS DEMONSTRATED A GOOD AGREEMENT WITH EXPERIMENTAL TEST RESULTS. THE EFFECTS OF PARAMETERS SUCH AS THE THICKNESS OF EACH LAYER, VALUE OF DIE ARC RADIUS, FRICTION COEFFICIENT BETWEEN BLANK AND PUNCH AND FRICTION COEFFICIENT BETWEEN BLANK AND DIE ON THE LDR WERE INVESTIGATED. THE RESULTS INDICATED THAT THE LDR IS DEPENDENT ON MENTIONED PARAMETERS, SO THE LDR AND AS A RESULT THE TWO-LAYER METALLIC SHEET FORMABILITY CAN BE INCREASED BY IMPROVEMENT OF THESE FACTORS IN DEEP DRAWING PROCESS.

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