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A solution framework for scheduling a BPM with non-identical job dimensions

Ramasubramaniam, M and Mathirajan, M (2007) A solution framework for scheduling a BPM with non-identical job dimensions. In: Journal of Industrial and Management Optimization, 3 (3). pp. 445-456.

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A Batch Processing Machine (BPM) is one which processes a number of jobs simultaneously as a batch with common beginning and ending times. Also, a BPM, once started cannot be interrupted in between (Pre-emption not allowed). This research is motivated by a BPM in steel casting industry. There are three main stages in any steel casting industry viz., pre-casting stage, casting stage and post-casting stage. A quick overview of the entire process, is shown in Figure 1. There are two BPMs : (1) Melting furnace in the pre-casting stage and (2) Heat Treatment Furnace (HTF) in the post casting stage of steel casting manufacturing process. This study focuses on scheduling the latter, namely HTF. Heat-treatment operation is one of the most important stages of steel casting industries. It determines the final properties that enable components to perform under demanding service conditions such as large mechanical load, high temperature and anti-corrosive processing. In general, different types of castings have to undergo more than one type of heat-treatment operations, where the total heat-treatment processing times change. To have a better control, castings are primarily classified into a number of job-families based on the alloy type such as low-alloy castings and high alloy castings. For technical reasons such as type of alloy, temperature level and the expected combination of heat-treatment operations, the castings from different families can not be processed together in the same batch.

Item Type: Journal Article
Publication: Journal of Industrial and Management Optimization
Publisher: American Institute of Mathematical Sciences
Additional Information: Copyright of this article belongs to American Institute of Mathematical Sciences.
Department/Centre: Division of Interdisciplinary Sciences > Management Studies
Date Deposited: 05 Mar 2010 05:58
Last Modified: 05 Mar 2010 05:58
URI: http://eprints.iisc.ac.in/id/eprint/25961

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