scispace - formally typeset
Proceedings ArticleDOI

Object data base. AI and CAD-CAM: application to the process ascending generation (PAG) concept

Reads0
Chats0
TLDR
An approach called process ascending generation (PAG) to generate sequences of operations for a given machining feature is presented and a forward-chaining rule-based strategy is used to implement the PAG concept in Prolog language.
Abstract
An approach called process ascending generation (PAG) to generate sequences of operations for a given machining feature is presented. The PAG determines the sequences of operations for a given feature, starting from its finished state and, by successive steps, leading up to its raw state. The object modeling problem is solved for some machining features and for an object database called Cutting Tool Chart (CTC). The CTC is a new concept used to model the abilities of the cutting tools to perform a machining feature. A forward-chaining rule-based strategy is used to implement the PAG concept in Prolog language. All of those aspects are implemented on CAD-CAM software, which is constituted by an object oriented database (OODB) and an integrated AI language. >

read more

Citations
More filters
Journal ArticleDOI

OMEGA, an expert CAPP system

TL;DR: In this article, a part analysis method for the creation of a process-planning system for automobile prototype activity at the PSA group is presented, which is based upon the division of the problem into two semi-separate sub-fields.
Journal ArticleDOI

An improved approach for automatic process plan generation of complex borings

TL;DR: The paper presents the two new features: the Machining Enabled Geometrical Feature (MEGF) and the Machinable Features (MbF), the result of the separation of the geometrical and the technological data contained in one machining feature.
Journal ArticleDOI

Product design-process selection-process planning integration based on modeling and simulation

TL;DR: In this article, the integration of product design-process selection-process planning is carried out in the early design phase, where the technological, economic, and logistic parameters are taken into account simultaneously as well as manufacturing constraints being integrated into the product design.
Journal ArticleDOI

Activity-Based Tolerance Allocation (ABTA) – driving tolerance synthesis by evaluating its global cost

TL;DR: In this paper, the authors deal with tolerance allocation driven by an activity-based approach, where the main objective is to rationally give a good indicator of the relevance of tolerance values fixed by designers.
Patent

NC programming and predetermined practices integration

TL;DR: In this article, a computer-based facility configured for programming of numerically controlled (NC) machines includes an NC data set generator component used in allowing a user to select data sets for NC programs that control the NC machines.
References
More filters
Book

Smalltalk-80: The Language and its Implementation

TL;DR: This book is the first detailed account of the Smalltalk-80 system and is divided into four major parts: an overview of the concepts and syntax of the programming language, a specification of the system's functionality, and an example of the design and implementation of a moderate-size application.
Journal ArticleDOI

Feature-Based Reasoning in Fixture Design

TL;DR: In this paper, the use of features for fixture design, concentrating on the selection of locating elements and the identification of locating surfaces for workpiece positioning, is investigated. But the focus of this paper is not on the design of tooling and fixtures.
Journal ArticleDOI

A feature-based classification scheme for fixtures

TL;DR: In this paper, a feature-based classification scheme for futures using a 3D solid modeller, a feature extractor and an object-oriented expert system shell is presented, where machining features are extracted and grouped into setups based on machining directions and tolerance factors.
Journal ArticleDOI

Process plan generation for sheet metal parts using an integrated feature-based expert system approach

TL;DR: In this paper, a relational database system for semi-generative process planning for sheet metal parts that emulates expert system capabilities is described, which integrates a feature-based relational database for the parts, a forward chaining rule based strategy for machine selection, both global and feature-specific execution of the rules and a graph theoretic cost optimization model for optimal process plan selection.
Journal ArticleDOI

Expert system rules for fixture design

TL;DR: In this article, the capability of a flexible manufacturing system to meet the demands for small-to medium-size batch production can be limited by component fixturing requirements, and the rule-based method illustrated could lead to an optimum solution for the fixture design problem.
Related Papers (5)