Vpliv obdelave z gnetenjem oblikovno obločno navarjenih izdelkov na njihove mehanske lastnosti

Sosolič, Filip (author), Klobčar, Damjan (mentor), Trdan, Uroš (co-mentor)

Za izdelavo strojnih delov in izdelkov v zadnjem času na veljavi pridobivajo razni postopki aditivne izdelave. Eden izmed njih je oblikovno obločno navarjanje, ki ima številne omejitve. Nekatere izmed njih lahko odpravimo z dodatno obdelavo s trenjem in mešanjem. Na ta način lahko materialu močno izboljšamo njegove mehanske lastnosti ter mikrostrukturo z odpravo poroznosti v materialu. V diplomskem delu je predstavljeno oblikovno obločno navarjanje ter obdelava teh izdelkov s trenjem in mešanjem. Preučene so mehanske in kemijske lastnosti navarjene aluminijeve zlitine AlSi5. Obravnavan je vpliv obdelave s trenjem in mešanjem na natezno trdnost AlSi5, ter opravljena vizualna analiza materiala z rentgenom ter mikroskopom pred in po obdelavi. V rezultatih je bilo ugotovljeno, da obdelava s trenjem in mešanjem pozitivno vpliva na mehanske lastnosti in mikrostrukturo oblikovno obločno navarjenih izdelkov.

• Language: Slovenian
• Keywords: WAAM, FSP, aluminij, AlSi5, natezni preizkus, mikrostruktura
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [F. Sosolič]
• Year: 2022
• Number of pages: XXII, [58]
• PID: 20.500.12556/RUL-139505
• UDC: 669.715:620.173.26(043.2)
• COBISS.SI-ID: 123349251
• Publication date in RUL: 03.09.2022

Secondary language

• Language: English
• Title: The effect of friction stir processing of wire arc additive manufactured products on their mechanical properties

Abstract

For the production of machine parts and products, various additive manufacturing processes are gaining ground in recent times. One of them is wire arc additive manufacturing, but it has many limitations. Some of them can be eliminated by additional treatment with friction stir processing. In this way, the mechanical properties and microstructure of the material can be greatly improved. Friction stir processing of wire arc additive manufactured parts are presented in the thesis. The mechanical and chemical properties of the welded AlSi5 Aluminium alloy are studied. The influence of friction stir processing on the tensile strength of AlSi5 is discussed, and a visual analysis of the material by X-ray and microscope before and after treatment is performed. The results showed that friction stir processing has a positive effect on the mechanical properties and microstructure of products made by wire arc additive manufacturing.

• Keywords: WAAM, FSP, aluminium, AlSi5, tensile test, microstructure