Computer Aided Design of a Progressive Die

Bergström, Kim; Kivivuori, Seppo; Osenius, S.; Korhonen, Ari

doi:10.1007/978-94-009-1411-7_18

Cited by 13 publications

(4 citation statements)

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“…Some researchers following them have tried to integrate other techniques into the CAD/CAM environment. Bergstrom et al (1988) added some functions, like unfolding a bent part and calculation of shearing and bending forces, and Choi et al (1999) used knowledge based rules in their study. These studies actually ignited the interest of CAD/CAM software suppliers, for example the Pro/SHEETMETAL of Pro/ENGINEER Õ , and NX Progressive Die Design of UGS Õ .…”

Section: Literature Reviewmentioning

confidence: 99%

Knowledge-based sequence planning of shearing operations in progressive dies

Lin

Sheu

2012

International Journal of Production Research

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This paper aims to study the methodology of building the knowledge of planning adequate punches in order to complete the task of strip layout for shearing processes, using progressive dies. The usage of superimposition of punches for planning strip layout is widely accepted among progressive die designers; however the huge number of combinations of punches may turn this easy-to-understand process into a nightmare. The proposed methodology uses die design rules and characteristics of different types of punches to classify them into five groups: prior use (the punches must be used first), posterior use (must be used last), compatible use (may be used together), sequential use (certain punches must precede some others), and simultaneous use (must be used together). With these five groups of punches, the searching space of feasible designs will be greatly reduced, and superimposition becomes a more effective method of punch layout. The superimposition scheme may generate many feasible solutions. Although none of them really violates die design rules, some of them are just better than others. An evaluation function based on number of stages, moment balancing and strip stability is developed. For meeting different designers' preferences, these three factors are coupled with various weightings, so, designers can fine tune and find better results. The whole process is not only to provide a new approach to solving the superimposition puzzles, but also to try to integrate the die design rules and designer's personal experience, which should be extremely helpful in speedier progressive die design.

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Section: Literature Reviewmentioning

confidence: 99%

Knowledge-based sequence planning of shearing operations in progressive dies

Lin

Sheu

2012

International Journal of Production Research

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“…Most CAD0CAM equipment provide programming languages for customization or0and are able to interface directly with a high level programming language such as FORTRAN. Researchers began to exploit these features to develop dedicated CAD0CAM systems for progressive die design~Fukuoka & Horiuchi, 1986;Bergstrom et al, 1988!. These second-generation die design systems represent a vast improvement over the first generation in terms of interactive graphics and 3D modelling functionalities.…”

Section: A Brief Review Of R and D Efforts In Configuration Of Progressmentioning

confidence: 99%

Configuration of progressive dies

Cheok

Nee

1998

AIEDAM

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The computer-assisted configuration of progressive die is a computationally mixed problem. This paper describes the progressive die design problem and reviews some existing research related to the configuration of progressive dies. It explains the model-based reasoning approach used to configure the intermediate and final solutions to the design problem. In particular, the various shape representation and spatial reasoning techniques are presented. Finally, a computer software architecture for the die design system is presented.

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“…Most of these systems provided high-level programming languages for customization. Researchers began to exploit these features to develop dedicated CAD/CAM systems for progressive die design [6,7]. These second-generation die design systems represent a vast improvement over the ®rst-generation systems in terms of interactive graphics and three-dimensional modelling functionality.…”

Section: Introductionmentioning

confidence: 99%

An innovative and practical design automation system for progressive dies

Zhang

Jiang

Cheok

et al. 2002

Proceedings of the Institution of Mechanical Engineers, Part B:

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This paper describes an innovative approach for the design automation of progressive dies. The die design is modelled as a process to design its die functions. A template concept used to realize the die structure for a die function is proposed in the paper. A user begins by de®ning the geometric and stamping features of a sheet metal part. The geometric and feature information is processed and stored in a knowledge-based system. After automatic unfolding and nesting operations, the stamping process is interactively staged. Thereafter, a model-based approach takes over and generates the knowledgebased description of the die. Using special semantics to describe the die topology and assembly relations, a three-dimensional solid model of the entire die assembly is generated from the die description knowledge base. This system is able to produce three-dimensional strip layout, threedimensional die components and assembly, and annotated two-dimensional production drawings. It signi®cantly improves stamping die design productivity and accuracy, which is achieved through the capturing and processing of die design knowledge.

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Computer Aided Design of a Progressive Die

Cited by 13 publications

References 1 publication

Knowledge-based sequence planning of shearing operations in progressive dies

Knowledge-based sequence planning of shearing operations in progressive dies

Configuration of progressive dies

An innovative and practical design automation system for progressive dies

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