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The initial blank shape chosen is circular.
This iterative design process leads to an optimal blank shape.
Blank shape prediction is done in two steps.
This paper describes a blank shape optimization procedure that uses three numerical tools to determine an optimal blank shape for a formed part.
The proposed optimization method involves an initial blank shape, which is iteratively trimmed according to the deep drawing simulations results, to achieve the final optimal blank shape.
To optimize the initial blank shape to minimize earing, the flow of material was observed at various steps during the process and accordingly blank shape was modified.
In this paper, a new iteration based method for blank shape optimization is presented.
The accuracy of optimized blank shape and size has been evaluated using experimental work.
Initial blank shape is a process parameter that controls the quality of a formed part.
The optimum blank shape also can be designed according to the formability of the forming part.
It is not easy to guess the blank shape in stretch flange process using traditional trials.
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