Formalization of Feature Relationships for Determining Sequencing of Machining Operations in Process Planning

Abstract

The selection of machining operations, machines and machining sequence are the most influential tasks during process planning in terms of cost reduction. The cost reduction accrues from the generation of an effective and efficient sequence for feature processing. The process planning activity has traditionally been experience based, and has relied heavily on the experience of the machinist, and also the ease of operation and setup. One of the biggest problems with this approach has been the variability in the judgement of the machinist. One method to overcome this problem is by the application of a knowledge based approach, which would aid the machinist on the shop floor to make decisions regarding the order in which the operations need to be performed. A formalization of feature interactions to determine the sequencing of the features is presented in the paper. The feature sequencing is based on precedence rules generated by feature relationships. The precedence rule based approach is based on a classification schema for the intersecting and non-physical intersecting feature relationships. The classification is based on spatial relationships that exists between the positive (+) and negative (-) features.

Department(s)

Engineering Management and Systems Engineering

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 The Authors, All rights reserved.

Publication Date

01 Dec 1996

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