Mehanska analiza stabilne plošče orodja za litje

Petrač, Tjaš (author), Mole, Nikolaj (mentor)

Visokotlačno litje aluminija je avtomatiziran postopek litja ulitkov, za katerega so značilni kratki cikli in velika produktivnost, saj je postopek namenjen velikoserijski proizvodnji. Pri visokotlačnem litju se lahko zaradi velikih obremenitev na orodju pojavijo razpoke. V našem primeru je prišlo do pokanje stabilne gravurne plošče, zato smo se odločili izvesti mehansko analizo stabilne polovice orodja. Mehanske analize smo se lotili v programskem okolju Abaqus, ki temelji na metodi končnih elementov. Na podlagi rezultatov analize smo ugotovili, da je iz vidika normalnih napetosti orodje najbolj obremenjeno v smeri delovanja zapiralne silne in tlaka tretje faze na območju, kjer orodje ni podprto. Objektivnost rezultatov bi lahko izboljšali, če bi upoštevali še vplive temperature.

• Language: Slovenian
• Keywords: aluminij, gravura, orodje, simulacije, visokotlačno litje, metoda končnih elementov
• Work type: Final paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [T. Petrač]
• Year: 2021
• Number of pages: XIV, 29 str.
• PID: 20.500.12556/RUL-129539
• UDC: 621.746:669.71:519.61(043.2)
• COBISS.SI-ID: 82228227
• Publication date in RUL: 04.09.2021

Secondary language

• Language: English
• Title: Mechanical analysis of the stable plate of the casting tool

Abstract

Aluminum high pressure die casting is an automatic process with short casting cycles and high productivity therefore it is used in mass production. Casting tool can crack due to high loads in the high pressure die casting process. In our case the cracking appeared on the stable fixed die so therefore we decided to do a mechanical analysis of the stable half of the casting tool. We preformed the analysis in the program called Abaqus which is based on finite element method. By the results we found out that in terms of normal stress the tool is most burdened in the derection of the claming force and the third phase pressure in the area where the tool is not supported. The obtained results could be improved if the effects of temperature were taken into account.

• Keywords: aluminum, die, tool, simulations, high pressure die casting, finite element method