Optimum design of forging dies using fuzzy logic in conjunction with the backward deformation method

F. R. Biglari, N. P. O'Dowd, R. T. Fenner

Research output: Contribution to journalArticlepeer-review

Abstract

A novel shape optimization method is presented for the design of preform die shapes in multistage forging processes using a combination of the backward deformation method and a fuzzy decision making algorithm. In the backward deformation method, the final component shape is taken as the starting point, and the die is moved in the reverse direction with boundary nodes being released as the die is raised. The optimum die shape is thereby determined by taking the optimum reverse path. A fuzzy decision making approach is developed to specify new boundary conditions for each backward time increment based on geometrical features and the plastic deformation of the workpiece. In order to demonstrate this approach, a design analysis for an axisymmetric disk forging is presented in this paper.

Original languageEnglish
Pages (from-to)981-1000
Number of pages20
JournalInternational Journal of Machine Tools and Manufacture
Volume38
Issue number8
DOIs
Publication statusPublished - Aug 1998
Externally publishedYes

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