Algorithms for grouping machining operations and planning workpiece location under dynamic machining conditions
Date
2002-10
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Taylor & Francis
Abstract
In this paper, algorithms are presented to develop an integrated system to generate machining groups for set-ups and to plan workpiece location layouts for fixture design. The objective of the proposed system is to overcome the deficiencies of existing set-up planning and fixture design approaches. Parts are described in terms of machining features that consist of attributes required for automation and integration. The approaches of machining feature-based design and precedence matrix algorithm are combined to automate the process-planning task and to generate the machining groups for set-ups. An algorithm for selecting the locating and clamping positions of the workpiece is presented to configure the fixture in terms of modular elements. Fixture configuration verification analysis is carried out for time-varying machining forces to ensure that the workpiece will be held against cutting and clamping forces. The chip-removal effect is taken into account for stability analysis using finite-element analysis technique. An example is included to illustrate the application of proposed system.
Description
Keywords
Accuracy parts, Aided fixture design, Clamping forces, System, Optimization, Verification, Generation, Selection, Framework, Algorithms, Automation, Cutting, Finite element method, Fixtures (tooling), Machining, Matrix algebra, Planning, Fixture configuration verification analysis, Fixture design, Process planning task, Integrated system, Computer integrated manufacturing
Citation
Kaya, N. ve Öztürk, F. (2001). "Algorithms for grouping machining operations and planning workpiece location under dynamic machining conditions". International Journal of Production Research, 39(15), 3329-3351.