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Postopki masivnega preoblikovanja predstavljajo pomembno vejo obdelave različnih vrst kovin. V uvodu diplomskega dela so v strnjeni obliki opisane kovine in kovinske zlitine, ki jih najpogosteje preoblikujemo s postopki masivnega preoblikovanja. Jedro diplomskega dela se osredotoča na teoretične osnove postopkov kovanja, valjanja, iztiskavanja in vlečenja. Za boljšo predstavo postopkov so na kratko opisani tudi stroji, ki se uporabljajo pri prej omenjenih postopkih. V zaključku diplomskega dela je na kratko predstavljena uporaba postopkov masivnega preoblikovanja v praksi in sicer v podjetju Metal Ravne, kjer dobimo še zadnjo potrditev, da je ta način obdelave kovin zelo kompleksen in uporaben. Bulk metal forming processes represent an important branch of processing different types of metals. In the introduction of the diploma metals and metal alloys, which are most commonly shaped by processes of bulk metal forming, are described in compact form. The core of the diploma focuses on the theoretical basis of the processes of forging, rolling, extrusion and drawing. To get a better picture of processes machines, which are used in aforementioned proceedings, are described in short shape. In the conclusion of the diploma is in short shape presented use of bulk metal forming processes in practice, in the company Metal Ravne, where we get final confirmation that this way of forming of metals is very complex and useful.