141 KB25 KB200020242014Hariharan, PillaiKadirvel, Arumugamštevilka:1letnik:48str. 27-32COBISSID:1030570ISSN:1580-2949URN:URN:NBN:SI:doc-LRCS7ZPIenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijeANOVAgrey relational analysismicro-EDMmikro-EDMoptimiranjeoptimizationsiva relacijska analizaTaguchi methodTaguchijeva metodaOptimization of the die-sinking micro-EDM process for multiple performance characteristics using the Taguchi-based grey relational analysis| Optimiranje mikro-EDM-postopka pogrezanja orodja za določanje več značilnosti z uporabo Taguchijeve sive relacijske analize|In modern industries, the expectation is to manufacture high-quality products with a low cost within a short duration. In order to produce any product with a desired quality by machining, the influence of various parameters such as the material-removal rate (MRR), the tool-wear ratio (TWR) and the surface roughness (Ra) should be considered. This paper presents the methodology of the Taguchi method and grey relational analysis to find the optimum parameters for obtaining a higher MRR, a lower TWR and the minimum surface roughness in the die-sinking micro-EDM process. The experiments were carried out as per L16 orthogonal array with each experiment performed under different conditions of the gap voltage, capacitance, feed rate and threshold. Additionally, an analysis of variance (ANOVA) was also applied to identify the most significant factor. The capacitance and the gap voltage were found to be the most significant controlled factors influencing the performance of the machining processOd moderne proizvodnje se pričakuje hitra izdelava kvalitetnih proizvodov z majhnimi stroški. Da bi s struženjem izdelali izdelek z želeno kvaliteto, je treba upoštevati vplive različnih parametrov, kot so hitrost odrezavanja materiala (MRR), hitrost obrabe orodja (TWR) in hrapavost površine (Ra). V tem članku je predstavljena metodologija Taguchijeve metode in sive relacijske analize za iskanje optimalnih parametrov za povečanje MRR, zmanjšanje TWR in minimalno hrapavost površine pri mikro-EDM-postopku pogrezanja orodja. Eksperimenti so bili izvršeni za pravokotno matriko L16, pri čemer je bil vsak eksperiment izvršen pri različnih razmerah voltaže razmika, kapacitivnosti, hitrostih odvzemanja in mejnih vrednostih. Dodatno je bila uporabljena analiza variance (ANOVA) za ugotovitev najpomembnejšega faktorja. Ugotovljeno je bilo, da sta kapacitivnost in voltaža razmika najpomembnejša kontrolna faktorja, ki vplivata na uspešnost procesa obdelaveTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije