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U teorijskom dijelu rada opisana je podjela aluminijskih legura, njihove karakteristike i problematika zavarljivosti aluminijskih legura s posebnim osvrtom na primjenu aluminijskih legura u brodogradnji. Detaljno je opisan TIG postupak zavarivanja te je objašnjena klasifikacija osnovnih vrsta spojeva koji se primjenjuju pri izradi brodskih konstrukcija. U posljednjem dijelu teorijskog rada dan je pregled pripreme spojeva za zavarivanje aluminijskih legura prema normi HRN EN ISO 9692-3. U eksperimentalnom dijelu rada odabrana je tehnologija zavarivanja aluminijske legure 6082 T6. Strojnom obradom sukladno normi HRN EN ISO 9692-3 pripremljene su dvije cijevi. Provedeno je zavarivanje radnih komanda AC TIG postupkom. Naposljetku su provedena ispitivanja radiografskom metodom, statično-vlačni pokus i ispitivanje savijanjem te je izvršena makroskopska analiza. Na temelju dobivenih rezultata eksperimentalnog rada donesen je zaključak. The theoretical part of this thesis deals with the division of the aluminum alloys, their characteristics and weldability problems, with special reference to the application of aluminum alloys in shipbuilding. The TIG welding process is described in detail. Moreover, the classification of the basic types of joints used in the construction of the ship structures is explained. An overview of the preparation of joints for welding aluminum alloys according to the HRN ISO 9692-3 standard is given in the last part of the theoretical work. In the experimental part the suitable welding technology has been chosen for welding aluminum alloy 6082 T6. Two pipes were prepared by machining accordingly to the HRN ISO 9692-3. Butt welding of pipe was done using the AC TIG technology. Ultimately, tests were carried out using the radiographic method, static tensile test and bending test, along with performing macroscopic analysis. Based on the obtained results of the experimental work, a conclusion was made.

U teorijskom dijelu rada opisana je proizvodnja, karakteristike i problematika zavarljivosti aluminijskih legura s posebnim osvrtom na primjenu aluminijskih legura u brodogradnji. Detaljno je opisan MIG postupak zavarivanja, a ukratko su objašnjeni ostali postupci zavarivanja aluminijskih legura, poput TIG-a, elektrolučnog plazma postupka, laserskog i zavarivanja trenjem. U posljednjem dijelu teorijskog rada dan je pregled pripreme spojeva za zavarivanje aluminijskih legura prema normi HRN EN ISO 9692-3. U eksperimentalnom dijelu rada odabrana je tehnologija zavarivanja aluminijske legure 6082. Strojnom obradom sukladno normi HRN EN ISO 9692-3 pripremljene su dvije ploče. Provedeno je sučeono zavarivanje radnih komanda impulsnim MIG postupkom. Naposlijetku su provedena nerazorna ispitivanja penetrantima i ispitivanje savijanjem te je izvršena makroskopska i mikroskopska analiza. Na temelju dobivenih rezultata eksperimentalnog rada donesen je zaključak. The theoretical part of this thesis describes the production, characteristics and weldability problems of aluminum alloys with special emphasis on the application of aluminum alloys in shipbuilding. The thesis also contains a detail description of MIG welding process, and a brief explanation of other welding processes used for aluminum alloys, such as TIG, the arc plasma welding, laser and friction stir welding. The final section gives an overview of recommended types of joint preparation for welding of aluminum alloys according to HRN EN ISO 9692-3. In the experimental part the suitable welding technology has been chosen for welding aluminum alloy 6082. In accordance with the HRN EN ISO 9692-3 standard two plates were machined. Butt welding was done using MIG pulse technology. Welds were tested using non-destructive dye penetrant method and bend test, furthermore the macroscopic and microscopic analysis was also done. Based on the results of experimental work the conclusion was made.