A Schema for Flexile Equipment Control in Manufacturing Systems |
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Authors: | JCE Ferreira J Steele RA Wysk DA Pasi |
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Affiliation: | (1) Universidade Federal de Santa Catarina, Departamento de Engenharia Mecanica, GRUCON, Florianopolis, SC, Brazil, BR;(2) Pennsylvania State University, Department of Industrial and Manufacturing Engineering, PA, USA, US;(3) JLG Inductries, McConnellsburg, PA, USA, US |
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Abstract: | In this work a methodology is proposed for increasing the flexibility of the control software of Flexible Manufacturing Systems
(FMSs). This greater flexibility is required due to factors such as uncertain product demand, uneven distribution of shop
load, and machine or cutting tool unavailability. In the proposed framework the following modules were developed: (a) an automated
process planning module which generates non-linear process plans for a given part, considering the shop floor resource availability;
the non-linear plans include both material handling and material processing information; (b) a planning module that linearises
the process plan aiming at minimising the total manufacturing time of the parts; (c) a NC program generation module, which
generates the NC program for the chosen CNC machine(s). In order to increase the flexibility of the control software even
more, a resource model was devised and implemented, which provides the necessary resource information for the above modules.
Each of these modules is described within this paper, and details about the part and process plan representation necessary
for this implementation are also given. A case study is presented in order to show the capability of the methodology. |
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Keywords: | :FMS control Manufacturing features NC program generation Process planning Resources |
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