Interactive computer-aided-design system for roll pass and profile design in bar rolling

Process design for refinement and homogenization of microstructure in bar rolling

“…The billet was assumed to be a round specimen made of AISI1010 with the diameter of 50 mm and the final geometry was assumed to be 25 mm round bar. For the process design, the roll design system developed by the authors [19], which automatically generates the feasible solutions for a given initial, final geometry and the pass sequence type, was employed. The pass sequence with 6-pass was generated and it is demonstrated in Fig.…”

“…Kim and Im [18] also developed an expert system for roll pass design using the backward chain algorithm and Kwon and Im [19] proposed an automatic roll pass design algorithm. In this study, an approximate temperature prediction model based on lumped heat capacity system and an automatic roll speed balancing module were included for the practical process design, respectively.…”

“…Based on the proposed criteria, the effect of major process parameters on the final microstructure distribution was investigated for the round-oval-round pass sequence in the bar rolling under the isothermal and non-isothermal approaches in order to expand the capability of the automatic design system developed by the authors [19].…”

Development of energy-saving optimization for the oval-edging oval pass design using genetic algorithm

“…Kim and Im developed another expert system based on the backward chaining algorithm for rolling round and square bars [14]. Kwon and Im proposed a computeraided design system to minimize trials and errors for roll pass design [15]. It is commonly believed that for a multi-objective and multi-constraint design problem such as roll pass design, intelligent design technologies can find a good application value.…”

Development of a computer-aided-design system of cold forward extrusion of a spur gear

“…In the field of metal forming, process design systems based on rule base or knowledge base have been actively developed for an axi-symmetric geometry so far [1][2][3][4][5]. In addition, in order to improve the flexibility of the system, various design methodologies in connection with heuristic searching algorithm, neural network, and FE analyses have been applied.…”