Abstract
Dieless drawing offers several advantages not only lack of the expensive dies and lubricant but also the ability to draw difficult material since the process is carried out at elevated temperature. However dimensional stability and accuracy is still unsolved issue. A finite element method (FEM) is utilized to examine a valid deformation behavior. As the result, a correction function is formulated from deformation sequence of dieless drawing to predict elongation of desired profile. A new approach to control desired profile of dieless drawing parts using a fuzzy model and correction function is presented in this paper. The result shows that by applying fuzzy control and correction function model, dimensional accuracy of drawn tube profile increases significantly.
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