Radomir Slavković (Author), Slavko Arsovski (Author), Aleksandar Veg (Author), Zvonimir Jugović (Author), Aleksandar Jovićić (Author), Nedeljko Dučić (Author)

Abstract

Conducting a comprehensive research of the casting process of wear resistant parts (white hard casting), a significant correlation is established between the technological parameters (temperature, aging time in the mold and coolant flow) and the final product hardness. The fundamental theory of Box-Wilson's gradient method marked the baseline for the foreseen researches. The method defines the coherence of the process parameters, since their dispersion in the examined process is relatively small. Main target of the experiment was a definition of the optimal casting conditions. Therefore the different technological routes are identified and the casting process is modified until the best outcome is achieved. Target function was initially in a hypothesized form, while later on evolved into a consistent form due to the application of experiment-statistics, process optimization and process management based on empirical feedback.

Keywords

litje;matematični modeli;management kakovosti;obrabna odpornost;casting;mathematical model;quality management;wear resistance;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FS - Faculty of Mechanical Engineering
UDC: 621.941:004.89
COBISS: 18034966 Link will open in a new window
ISSN: 1330-3651
Views: 724
Downloads: 90
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Other data

Secondary language: Croatian
Secondary title: Optimizacija procesa lijevanja pomoću regresijske analize primijenjene na kalupljenje dijelova otpornih na habanje
Secondary abstract: Provodeći sveobuhvatno istraživanje procesa lijevanja dijelova otpornih na habanje (lijevanje bijelog željeza), uspostavljena je značajna korelacija između tehnoloških parametara (temperatura, vrijeme starenja u kalupu i protok rashladnog sredstva) i tvrdoće finalnog proizvoda. Osnovna teorija Box-Wilsonove metode gradijenta činila je osnovu za predviđena istraživanja. Ta metoda definira koherentnost parametara procesa budući da je njihova disperzija u ispitivanom procesu relativno mala. Glavni je cilj eksperimenta bila definicija optimalnih uvjeta lijevanja. Stoga su identificirane različite tehnološke rute i modifikacije u procesu lijevanja dok se nije postigao najbolji rezultat. Ciljna je funkcija u početku imala oblik hipoteze, ali je kasnije dobila konzistentan oblik primjenom statističkih podataka dobivenih eksperimentom, optimizacijom procesa i upravljanjem procesom na bazi empirijske povratne veze.
Secondary keywords: litje;matematični modeli;management kakovosti;obrabna odpornost;
URN: URN:SI:UM:
Type (COBISS): Scientific work
Pages: str. 141-146
Volume: ǂVol. ǂ19
Issue: ǂno. ǂ1
Chronology: 2012
ID: 10847494