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Ingeniería e Investigación

Print version ISSN 0120-5609


GIRALDO GARCIA, Jaime Alberto; SARACHE CASTRO, William Ariel  and  CASTRILLON GOMEZ, Omar Danilo. Integral methodology simulation support for the improvement of production systems job shop. Metalworking applications in SMES. Ing. Investig. [online]. 2010, vol.30, n.1, pp.97-106. ISSN 0120-5609.

Metalworking companies represent one of the strategic sectors in the regional economy of the Caldas department in Colombia; in fact, this sector is involved in 31% of the department´s industrial establishments and 29% of industrial employment according to DANE (Colombian State Statistical Department) statistical data from 2005. The sector also exports to Andean countries. However, preliminary studies conducted with 57% of the entrepreneurs from this sector (excluding micro companies and family businesses) have revealed serious structural (technology, processing, installations) and infrastructure weaknesses (production planning, quality systems) in these organisations´ production systems. It is hoped that this paper will lead to disseminating the results amongst the academic community of implementing a comprehensive methodology for improving the production system of a pilot company from this particular sector. An experimental framework for improving the levels reached by the system regarding such priorities is proposed following universally accepted methodology in discrete simulation studies; it proposes using sequential bifurcation, factorial design and response surface experimentation based on defining and weighting the competing priorities which the company should achieve. The improvements in the pilot company´s production system priorities are presented in terms of an effectiveness index (EI) which rose from 1.84 to 2.46 by the end of the study.

Keywords : metal-working company; production system; discrete simulation; sequential bifurcation; statistical design for experiments; response surface.

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