Simulation of Strian Rate Effect on the Deep Drawing Force For Dual-Phase Stee | ||
| journal of kerbala university | ||
| Article 1, Volume 8, Issue 1, May 2012, Pages 135-143 PDF (0 K) | ||
| Abstract | ||
| In this work , the effect of strain rate (speed of the punch) on the total force required to draw dual - phase steel blank has been studied.The specimen is prepared from low carbon steel which is quenched by water from annealing temperature of 800 ◦C . Thetotal force is theoretically calculated in terms of two variables,plastic deformation andfriction . The results have shown that the effect of plastic force is more than the friction force over the required total force for the drawing process . It is found that the plastic force forms a percentage of no less than 91% of the total force and the total force increases with increasing the strain rate (speed of the punch) Also, it is found that the best balance between the total force and the time needed for drawing was at strain rate of 3.33*10-4/sec . Iteration technique,which depend on the finite difference method ,is applied for solving the equation used by dividing the drawing stroke to 50 equal parts . Results have shown that both theoretical and experimental results are in agood agreement . | ||
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