Application of Special Cause Control Charts to Green Sand Process

• Autorzy: Perzyk M. , Rodziewicz A.

Identyfikatory

DOI

10.1515/afe-2015-0079

• Języki publikacji: EN

Abstrakty

EN

Statistical Process Control (SPC) based on the well known Shewhart control charts, is widely used in contemporary manufacturing industry, including many foundries. However, the classic SPC methods require that the measured quantities, e.g. process or product parameters, are not auto-correlated, i.e. their current values do not depend on the preceding ones. For the processes which do not obey this assumption the Special Cause Control (SCC) charts were proposed, utilizing the residual data obtained from the time-series analysis. In the present paper the results of application of SCC charts to a green sand processing system are presented. The tests, made on real industrial data collected in a big iron foundry, were aimed at the comparison of occurrences of out-of-control signals detected in the original data with those appeared in the residual data. It was found that application of the SCC charts reduces numbers of the signals in almost all cases It is concluded that it can be helpful in avoiding false signals, i.e. resulting from predictable factors.

Słowa kluczowe

EN

quality management; information technology; foundry industry; statistical process control; time series analysis; control charts

PL

zarządzanie jakością; technologia informatyczna; przemysł odlewniczy; statystyczne sterowanie procesem; analiza szeregów czasowych; karta kontrolna

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2015
• Tom: Vol. 15, iss. 4
• Strony: 55--60
• Opis fizyczny: Bibliogr. 13 poz., tab., wykr.

Twórcy

autor

Perzyk M.

• Institute of Manufacturing Technologies, Warsaw University of Technology, ul. Narbutta 85, 02-524 Warszawa, Poland

autor

Rodziewicz A.

• Institute of Manufacturing Technologies, Warsaw University of Technology, ul. Narbutta 85, 02-524 Warszawa, Poland

Bibliografia

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