CLOSED DIE STEEL FORGING TECHNOLOGY

U ovom završnom radu obrađena je tehnologija obrade metala kovanjem u zatvorenim ukovnjima. Tehnologija spada u skupinu obrada metala deformiranjem, te je jedna od najstarijih tehnologija obrade metala. Za ovu tehnologiju kovanja je potrebna pažljiva konstrukcija alata. Alat prolazi razne obrade dok ne bude gotov proizvod. Toplinska obrada kod izrade alata za ovo kovanje je neophodna i potrebno je posvetiti puno pažnje kako ne bi došlo do velikih grešaka. Otpad materijala kod ove obrade je 20% do 30% što je najviše kod obrade metala deformiranjem. U većini slučajeva proizvod nakon ovakvog kovanja nije u potpunosti gotov, te treba ići na naknadnu obradu. Veća pažnja je posvećena materijalima i toplinskoj obradi alata za kovanje zbog važnosti uspješne toplinske obrade i odabira materijala. U radu su navedeni materijali po EN normi, te neki po AISI normi. Neki materijali po AISI normi su prevedeni na EN normu.In this paper, the technology of forging metal in closed dies has been described. The technology belongs to the metal processing group by deforming, and is one of the oldest metal processing technologies. For this technology of forging it is necessary to carefuly construct the tool. The tools pass through various processing until the tool is finished product. Much attention needs to be paid to avoid major mistakes. The material waste in this technology is from 20% to 30%, which is the largest waste of material in metal deformation processing. In most cases, the product after this kind of forging is not completely done, and it should be subjected to subsequent processing. More attention is paid to the materials and thermal processing of froging tool because of the importance of successful heat treatment and material selection. In this paper are mentioned materials according to the EN and AISI norms. Some materials acording to AISI standards have been translated to the EN standard