An Automated Process Sequence Design and Finite Element Simulation of Axisymmetric Deep Drawn Components

2014 ◽  
Vol 136 (3) ◽  
Author(s):  
Ali Fazli ◽  
Behrooz Arezoo ◽  
Mohammad H. Hasanniya
Keyword(s):  
Finite Element ◽  
Computer Aided Design ◽  
Die Design ◽  
Automatic Process ◽  
Blank Holder ◽  
Cad System ◽  
Process Sequence ◽  
Element Simulation ◽  
Process Sequence Design ◽  
Aided Design

A computer-aided design (CAD) system is developed for automatic process design and finite element (FE) modeling of axisymmetric deep drawn components. Using the theoretical and experimental rules, the system initially designs the process sequence of the component. The obtained process sequence is automatically modeled in abaqus software and the system tests whether failure occurs. The failure is supposed to happen when the fracture is predicted in FE simulation. If failure is predicted, the system changes the appropriate process parameters and carries out the simulation process again until all drawing stages are successful. The system returns the requested parameters for die design such as part geometries in middle stages, drawing forces, blank-holder forces, die, and punch profiles radii. The system is successfully tested for some components found in industry and handbooks.

Progressive Die Sequence Design for Deep Drawing Round Cups Using Finite Element Analysis

2004 ◽  
Vol 128 (1) ◽  
pp. 366-369 ◽  
Author(s):  
Taylan Altan ◽  
Nitin Jain ◽  
Xiaoxiang Shi ◽  
Gracious Ngaile ◽  
Bryan Pax ◽  
...  
Keyword(s):  
Finite Element ◽  
Die Design ◽  
Development Cost ◽  
Element Analysis ◽  
Progressive Die ◽  
Sequence Design ◽  
Process Sequence ◽  
Process Sequence Design ◽  
Automotive Part ◽  
Design Experience

A methodology for progressive die sequence design for forming round cups using finite element method (FEM) based simulations is discussed. The process sequence design developed was applied to forming of an automotive part and was compared with the design obtained from past experience. The methodology proposed in this paper has shown that the integration of design experience and FEM simulations can enhance the robustness of the procedure for die design sequence and reduces the die development cost considerably.

Computer Aided Design of the Die-Set for Sheet Metal Punching and Blanking Dies

2014 ◽  
Vol 619 ◽  
pp. 78-82
Author(s):  
R.K. Abdel-Magied ◽  
H.M.A. Hussein ◽  
J. Abu Qudeiri ◽  
U. Umer
Keyword(s):  
Sheet Metal ◽  
Computer Aided Design ◽  
Die Design ◽  
Set Design ◽  
Manufacturing Companies ◽  
Cad System ◽  
Die Set ◽  
Aided Design ◽  
Progressive Die Design ◽  
Blanking Die

Die-Set is one of the Punching/Blanking die components. It includes lower and upper shoes, guide posts and guide bushes. The High demand of Die-Set in industry resulted in the supply of specified die set from many manufacturing companies. The standard components in the market cover only the small and medium die sizes. In many cases, the designers need to build their own die-sets especially in case of progressive die design and non-tradition die sizes. In this paper, a CAD system for building a Die-Set is discussed. This system is built using Visual Basic (VB) interfacing with AutoCAD. The system covers all Die-Sets sizes (small, medium). The proposed CAD system is prepared to work as a standalone or as a subroutine for a blanking die design CAD system. It saves time in Die-Set design operation from hours to minutes. This module is a part of a series of studies to automate the design of sheet metal working tools.

Metal Forming and the Finite-Element Method

1989 ◽  
Author(s):  
Shiro Kobayashi ◽  
Soo-Ik Oh ◽  
Taylan Altan
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Metal Forming ◽  
Computer Aided Design ◽  
The Finite Element Method ◽  
Forming Technology ◽  
Computer Aided ◽  
Deformation Mechanics ◽  
Aided Design ◽  
Element Method

The application of computer-aided design and manufacturing techniques is becoming essential in modern metal-forming technology. Thus process modeling for the determination of deformation mechanics has been a major concern in research . In light of these developments, the finite element method--a technique by which an object is decomposed into pieces and treated as isolated, interacting sections--has steadily assumed increased importance. This volume addresses advances in modern metal-forming technology, computer-aided design and engineering, and the finite element method.

A Combined Knowledge-Based and Finite Element Approach to Forging Die Design

1991 ◽  
Author(s):  
Imtiaz Haque ◽  
P. D. Dabke ◽  
Chesley Rowe ◽  
John Jackson
Keyword(s):  
Finite Element ◽  
Mesh Generation ◽  
Die Design ◽  
Knowledge Based System ◽  
Knowledge Based ◽  
Element Simulation ◽  
Regeneration Procedure ◽  
Element Approach ◽  
Forging Die ◽  
Simulation Package

Abstract This paper presents the use of a knowledge-based system to provide the link between computer-aided rule-of-thumb procedures and a finite element simulation package for the design of forging dies. The knowledge-based system automates the mesh generation and regeneration procedure that is traditionally the most cumbersome aspect of such a process. The system is programmed in Prolog, C, and Fortran. It is based on parametric mapping approach and generates 2-D quadrilateral meshes. Results are presented to show its effectiveness in reducing the effort and skill required for conducting forging simulations.

A CAD System for Designers’ Decision Making: An Approach With 2D and 3D Integrated and Hierarchical Assembly Models

1991 ◽  
Author(s):  
S. Minami ◽  
T. Ishida ◽  
S. Yamamoto ◽  
K. Tomita ◽  
M. Odamura
Keyword(s):  
Decision Making ◽  
Computer Aided Design ◽  
Mechanical Design ◽  
Prototype System ◽  
Dimensional Model ◽  
3 Dimensional ◽  
Hierarchical Assembly ◽  
Cad System ◽  
Aided Design ◽  
2D And 3D

Abstract A concept for the initial stage of the mechanical design and its implementation in the computer-aided design (CAD) are presented. The process of decision making in design is: (1) determining an outline of the whole assembly using a 2-dimensional model that is easy to operate; (2) checking the outline using a 3-dimensional model in which it is easy to identify the spatial relationships; (3) determining details of its sub-assemblies or their components using the 2-dimensional model; and (4) checking the details using the 3-dimensional model. The CAD system must provide consistent relationships through all the steps. For that, following functions are implemented in our prototype system: (1) a 2D and 3D integrated model for consistency between 2- and 3-dimensional shapes, (2) a hierarchical assembly model with dimensional constraints for consistency within an assembly and their components, and (3) a check on constraints for consistency between shapes and designers’ intentions. As a result, the system can provide an environment well fitted to the designers’ decision making process.

scholarly journals Computer-aided design finite element modeling of different approaches to rehabilitate endodontically treated teeth

2018 ◽  
Vol 18 (4) ◽  
pp. 329 ◽  
Author(s):  
AmandaMaria de Oliveira Dal Piva ◽  
GabrielaFernandes da Fonseca ◽  
GuilhermeSchmitt de Andrade ◽  
JoaoPaulo Mendes Tribst ◽  
AlexandreLuiz Souto Borges
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Computer Aided Design ◽  
Endodontically Treated Teeth ◽  
Element Modeling ◽  
Computer Aided ◽  
Aided Design

Iterative Part Design With a Virtual Reality Interface

1996 ◽  
Author(s):  
S. N. Trika ◽  
P. Banerjee ◽  
R. L. Kashyap
Keyword(s):  
Virtual Reality ◽  
Computer Aided Design ◽  
Three Dimensions ◽  
Mechanical Parts ◽  
Cad System ◽  
Current State ◽  
Feature Based ◽  
New Feature ◽  
Feature Based Design ◽  
Aided Design

Abstract A virtual reality (VR) interface to a feature-based computer-aided design (CAD) system promises to provide a simple interface to a designer of mechanical parts, because it allows intuitive specification of design features such as holes, slots, and protrusions in three-dimensions. Given the current state of a part design, the designer is free to navigate around the part and in part cavities to specify the next feature. This method of feature specification also provides directives to the process-planner regarding the order in which the features may be manufactured. In iterative feature-based design, the existing part cavities represent constraints as to where the designer is allowed to navigate and place the new feature. The CAD system must be able to recognize the part cavities and enforce these constraints. Furthermore, the CAD system must be able to update its knowledge of part cavities when the new feature is added. In this paper, (i) we show how the CAD system can enforce the aforementioned constraints by exploiting the knowledge of part cavities and their adjacencies, and (ii) present efficient methods for updates of the set of part cavities when the designer adds a new feature.

Design and Experimental Verification of a New Direct Cold Drawing Die for Section Rod From Round Bar

1999 ◽  
Author(s):  
Liping Wang
Keyword(s):  
Computer Aided Design ◽  
Cold Drawing ◽  
Die Design ◽  
Machining Process ◽  
Drawing Die ◽  
Die Profile ◽  
The Mean ◽  
Aided Design ◽  
Manufacturing Parameters ◽  
Advanced Computer

Abstract This paper presents the design and verification of a new direct cold drawing die used for drawing of hexagon/square section rods from round bars. Advanced computer-aided design and analysis tools are utilized to assist in the design of die profile and manufacturing parameters. The strain gage method is adopted to measure the mean drawing force and verify the die design and machining process.

Design and Implementation of an Intelligent CAD System

1987 ◽  
Author(s):  
M. J. Jakiela ◽  
P. Y. Papalambros
Keyword(s):  
Computer Aided Design ◽  
Design System ◽  
Knowledge Based Systems ◽  
Production Rules ◽  
Automated Assembly ◽  
Cad System ◽  
Design And Implementation ◽  
Knowledge Based ◽  
System Requirements ◽  
Aided Design

Abstract System requirements and system design for integrating a production rule program and a computer aided design system are presented. An implementation using a commercially available graphics modeling system is described. A “suggestive mode” interface is programmed as an example with application to design for automated assembly. Initial use of the implementation indicates that encoding production rules is more difficult than with conventional text-only knowledge-based systems, but that this system is a more effective way to use artificial intelligence techniques in design.

Simultaneous Computer-Aided Design of Rotational Plastic Parts

1993 ◽  
Author(s):  
Colin Chong ◽  
Kiyoshi Sogabe ◽  
Kosuke Ishii
Keyword(s):  
Injection Molding ◽  
Dynamic Characteristics ◽  
Computer Aided Design ◽  
Critical Speed ◽  
Dynamic Balance ◽  
Cad System ◽  
Compatibility Analysis ◽  
Computer Aided ◽  
Plastic Parts ◽  
Aided Design

Abstract This paper addresses the problem of balancing rotational plastic parts during the early stages of design. The study develops an interactive methodology that uses a solid modeling CAD system and considers injection molding concerns simultaneously with static and dynamic balance. The Transfer Matrix Method evaluates the dynamic characteristics by predicting the approximate critical speed of the part. Design Compatibility Analysis (DCA) checks for injection molding guidelines. Using these evaluation modules interactively, designers can develop a functional and manufacturable part quickly.

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