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Oblikovno obločno navarjanje z žico aluminijeve zlitine AlSi5
Tomšič, Bojan (Author), Klobčar, Damjan (Mentor) More about this mentor... This link opens in a new window

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Abstract
Dodajalne tehnologije so vse bolj razširjene zaradi svojih prednosti, saj omogočajo izdelavo kompleksnih oblik izdelkov. Postopek je v veliko primerih hitrejši od konvencionalnih postopkov obdelave izdelkov ter z njim zmanjšamo stroške odpadnega materiala. Aluminijeve zlitine so začele zaradi svojih mehanskih lastnosti vse bolj nadomeščati jeklo in ostale materiale, saj omogočajo dobro razmerje med trdnostjo in težo. V diplomski nalogi je predstavljena raziskava navarjanja aluminijeve zlitine AlSi5 s postopkom navarjanja MIG. Preučeni so varilni parametri, ki najbolj vplivajo na kakovost navarjenega izdelka pri navarjanju v obliki sten in zaključenih navarov. Prav tako so preučeni tudi vplivi prvega navara, začetkov navarjanja in prehodov navarov na višjo plast izdelka. Na podlagi ugotovljenih optimalnih parametrov je bil navarjen končni izdelek. Kot rezultat dela je dokazano, da je neprekinjeno navarjanje aluminijeve zlitine AlSi5 po postopku MIG uspešno, ob tem pa so z vzorci potrjeni izbrani optimalni parametri navarjanja. Dokazan je tudi vpliv visoke toplotne prevodnosti AlSi5. Preizkušene so delne rešitve za zmanjšanje vpliva te lastnosti materiala na navarjanje.

Language:Slovenian
Keywords:dodajalne tehnologije, aluminijeve zlitine, AlSi5, WAAM, aluminij, MIG
Work type:Bachelor thesis/paper (mb11)
Tipology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Year:2018
Publisher:[B.Tomšič]
UDC:621.791.75:669.715(043.2)
COBISS.SI-ID:16329755 Link is opened in a new window
Views:483
Downloads:196
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Secondary language

Language:English
Title:Wire and arc additive manufacturing of aluminium alloys AlSi5
Abstract:
Additve manufacturing technologies are becoming increasingly widespread due to their advantages, as they enable the production of complex forms of products and in many cases the process is faster than conventional processes. They also reduce the cost of material waste. Aluminum alloys are increasingy replacing steel and other materials due to their mechanical properties as they have good strenght to weight ratio. In this diploma thesis the development of additive manufacturing of aluminium alloy AlSi5 with the MIG process is presented. This thesis is a study of welding parameters, which have the greatest influence on the quality of the manufactured walls and circle closed shapes. It also contain the research of influences of the first layer, the beginnings of weld and shifts on higher layer level. Result of this research is the final product, which is made with the most suitable welding parameters. This research confirms possibility of continuous additive manufacturing of aluminium alloy AlSi5 with MIG welding technology and also the selected optimal parameters. The influence of high thermal conductivity of AlSi5 for additive manufacturing was also proven and partial solutions to resolve this issue were tested.

Keywords:additive manufacturing, aluminium alloys, AlSi5, WAAM, aluminium, MIG

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