A knowledge-based system for process-sequence design in axisymmetric sheet-metal forming

doi:10.1016/0924-0136(91)90111-Q

Journal of Materials Processing Technology

Volume 25, Issue 3, April 1991, Pages 247-271

https://doi.org/10.1016/0924-0136(91)90111-Q Get rights and content

Abstract

A hybrid Computer-Aided Engineering (CAE) system for automatic process-sequence design for the manufacture of axisymmetric sheet-metal components has been developed. The input to the CAE system is the final sheet-metal object geometry that needs to be manufactured, and the output from the system is the process sequence with intermediate object geometries. Two main components of the hybrid CAE system are a knowledge-based expert-system module (symbolic module) and a process-modeling analysis module (numeric module). The knowledge-based system module will first generate an initial-guess process sequence based on experience-based die-design guidelines, and this process sequence will then be tested for defects and failures by mathematically modeling the sheet-metal forming process using the analysis module. The analysis module will formulate mechanics of metal forming and predict stresses and strains in the deformed geometry and punch load versus displacement.

This paper describes the knowledge-based system and compares process sequences outputted by the system with corresponding process sequences from industrial practice. It was found through several test cases that the blank diameter and the number of stations suggested by the knowledge-based system compare well with those used in industrial practice.

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A knowledge-based system for process-sequence design in axisymmetric sheet-metal forming

Abstract

J. Mech. Work. Technol.

Sheet Metal System Built

AMM

A CAD System for Progressive Dies

NC for Sheet Metal Forming Tools

Sheet Met. Ind.

Analysis of growing and disappearing behavior of surface deflection in press forming of large-sized autobody panels

Panels, JSAE Review

Geometric modelling for efficient evaluation of press forming severity,

Evaluation methods of press forming severity in CAD applications

Computer Aided Design and Evaluation System for Stamping Dies in Toyota

The development of sheet metal modelling