Erratum: “A Simplified Approach to Estimate Limiting Drawing Ratio and Maximum Drawing Load in Cup Drawing” [Journal of Engineering Materials and Technology, 2004, 126(1) pp. 116–122]

extra high limiting drawing ratio (ldr=9) cylindrical deep drawing based on finite element and experiment

deep drawing of cylindrical shapes with high limiting drawing ratio (ldr) values is relatively difficult. annealing is a further operation, which in turn adds costs and consumes significantly time to the forming process. in the present work, cylindrical cups from brass sheet were made with only limited anneal during few steps, but having ldr of 9 that is about 2 times higher than previous works...

Prediction the Limiting Drawing Ratio in Deep Drawing Process by Back Propagation Artificial Neural Network

In this paper back-propagation artificial neural network (BPANN) with Levenberg–Marquardt algorithm is employed to predict the limiting drawing ratio (LDR) of the deep drawing process. To prepare a training set for BPANN, some finite element simulations were carried out. die and punch radius, die arc radius, friction coefficient, thickness, yield strength of sheet and strain hardening exponent ...

Application of Neural Network and Finite Element for Prediction the Limiting Drawing Ratio in Deep Drawing Process

In this paper back-propagation artificial neural network (BPANN) is employed to predict the limiting drawing ratio (LDR) of the deep drawing process. To prepare a training set for BPANN, some finite element simulations were carried out. die and punch radius, die arc radius, friction coefficient, thickness, yield strength of sheet and strain hardening exponent were used as the input data and the...

Symbolic Pruning in a Structural Approach to Engineering Drawing Analysis

Interpretation of paper drawings has received a good deal of attention over the last decade. Progress has also been made in related areas such as direct interpretation of human drawings (HCI), search and indexing of graphics databases, and knowledge representation in the domain of graphics and drawing understanding. One of the most interesting applications in this domain is the analysis of sema...

Engineering Drawing Based Database Rendering