Original scientific paper Multi objective optimization is an important issue in complex industrial problems. In this experimental study, optimum machining parameters are determined in turning operation of EN25 steel with coated carbide tools using combined Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) and Analytic Hierarchy Process (AHP) method. This technique is a multi-objective optimization method which has been adopted to simultaneously minimize micro hardness, surface roughness and maximize material removal rate (MRR). The result indicates the effectiveness of this approach. This method is applicable to all machining operations with greater number of objectives simultaneously.
Keywords: AHP; EN25 steel; optimization; TOPSIS; turning
Optimizacija parametara obrade u postupcima tokarenja primjenom kombinacije TOPSIS i AHP metodeIzvorni znanstveni članak Optimizacija s više ciljeva važno je pitanje u složenim industrijskim problemima. U ovom eksperimentalnom istraživanju, optimalni parametri obrade određivani su pri tokarenju EN25 čelika s alatima od tvrdog metalnog karbida primjenom kombinacije metode TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) i AHP (Analytic Hierarchy Process). To je metoda optimizacije s više ciljeva, primijenjena kako bi se istovremeno do minimuma smanjila mikro tvrdoća, površinska tvrdoća, a do maksimuma povećao učinak odvajanja čestica (MRR). Rezultat pokazuje učinkovitost tog pristupa. Ova se metoda može primijeniti u svim postupcima obrade s istovremeno većim brojem ciljeva.