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2 Archives of Foundry Engineering

2 Kukla S.

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Maintenance system improvement in cast iron foundry

100%

Kukla S.

2011

tom Vol. 11, iss. 3

185-188

The work presents the issue of technical equipment management in an iron foundry basing on the assumptions of the TPM system (Total Productive Maintenance). Exploitation analysis of automatic casting lines has been carried out and their work's influence on the whole production system's functioning has been researched. Within maintenance system improvement, implementation of autonomic service and planned lines' review have been proposed in order to minimize the time of breakdown stoppages. The SMED method was used to optimize changeover time, and the OEE (Overall Equipment Effectiveness) was applied to evaluate the level of resources usage before and after implementing changes. Further, the influence of the maintenance strategy of casting devices' efficiency on own costs of casting manufacture was estimated.

Total productive maintenance on example of automated foundry lines

80%

Kukla S.

tom Vol. 9, iss. 3

71-74

Within framework of the presented study one has performed analysis of stoppages in automatic foundry lines operation, and basing on assumptions from complex maintenance system has undertaken himself to develop a service maintenance schedule for machinery installed in the line. Moreover, one has presented general assumptions of TPM system operated in conditions of series and multi-series production of cast iron castings. One has constructed operational database and has elaborated a list of line stoppage causes within a year. One has proposed a possibility of implementation of manufacturing systems modeling and simulating technique in management of production machinery operation in a foundry shop. Within framework of the simulation experiment one has developed schedules of production, schedules of maintenance and has forecasted indices of general productivity of the machinery for a various scenarios of events on example of casting line having in-series structure of operational reliability. In course of the study there was implemented ARENA universal software package to modeling and simulation of the manufacturing systems.