Abstract
This paper deals with an automated computer-aided process planning and die design system by which the designer can determine operation sequences even if they have little experience in process planning and die design for axisymmetric products. An attempt is made to link programs incorporating a number of expert design rules with the process variables obtained by commercial FEM softwares, DEFORM and ANSYS, to form a useful package. The system is composed of four main modules. The process planning and the die design modules consider several factors, such as the complexities of preform geometry, punch and die profiles, specifications of available multi-former, and the availability of standard parts. They can provide a flexible process based on either the reduction in the number of forming sequences by combining the possible two processes in sequence, or the reduction of deviation of the distribution on the level of the required forming loads by controlling the forming ratios. In the die design module optimal design technique and the horizontal split of the die insert were investigated for determining appropriate dimensions of components of the multi-former die set. It is suggested that the proposed method can be beneficial for improving the tool life of the die set in practice.
Similar content being viewed by others
References
Bariani P, Knight WA (1988) Computer aided cold forging process design, a knowledge-based system approach for forming sequence generation. Ann, CIRP 37:243–246
Badawy AA, Kuhlmamn DJ, Raghupathi PS, Altan T (1985) Computer-aided design of multi- stage forging operations for round parts. J Mech Work Technol 11:259–274
Lange K (1967) Handbook of metal forming. McGraw-Hill, New York
Vazquez V, Hannan D, Altan T (2000) Tool life in cold forging - an example of design improvement to increase service life. J Mater Process Technol 98:90–96
Kim HS, Im YT (1994) Expert system for process design of cold forging with redesigning scheme. Trans KSME 18(8):2039–2052
Park CW, Kang JH, Lee JH, Kim C, Kim MS, Choi JC (2003) A study of automated process planning and die design for multi former-bolt products. J Korean Soc Precis Eng 20(4):29–38
Kuhn HH (1978) Optimum die design for powder compaction. Int J Powder Technol 14(8):259–275
An SC, Im YT (2002) Optimal design of dimension of extrusion die with single stress ring. Trans Mater Process 11(4):363–370
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kim, C., Park, C. Development of an expert system for cold forging of axisymmetric product. Int J Adv Manuf Technol 29, 459–474 (2006). https://doi.org/10.1007/s00170-005-2532-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00170-005-2532-1