magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
Abstract
Orodje za visokotlačno litje aluminija je izpostavljeno cikličnim temperaturnim in mehanskim obremenitvam, pri čemer so posamezni segmenti gravurnega dela orodja izpostavljeni velikim obremenitvam. Z namenom lažjega vzdrževanja orodja, so posamezni deli orodja konstruirani kot privijačeni segmenti. V programskem okolju Abaqus smo izvedli termo-mehansko analizo take konstrukcije. Upoštevali smo kontaktne razmere med deli orodja ter ciklično ponavljajoče se obremenitve, do katerih pride med procesom visokotlačnega litja aluminija. Analizirali smo referenčni primer konstrukcije in potrdili ciklične obremenitve kot razlog za porušitev vijakov. Na podlagi opravljene analize termomehanske stanja v obstoječem orodju, je bila izvedena konstrukcijska modifikacija orodja. Nova izvedba privijačenja segmenta v orodje izkazuje ugodnejše napetostno stanje.
Keywords
magistrske naloge;toplotna analiza;mehanska analiza;tlačno orodje;vijačna zveza;ciklična obremenitev;MKE;
Data
Language: |
Slovenian |
Year of publishing: |
2024 |
Typology: |
2.09 - Master's Thesis |
Organization: |
UL FS - Faculty of Mechanical Engineering |
Publisher: |
[M. Kobal] |
UDC: |
621.74:620.173.2:546.62(043.2) |
COBISS: |
202830339
|
Views: |
72 |
Downloads: |
21 |
Average score: |
0 (0 votes) |
Metadata: |
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Other data
Secondary language: |
English |
Secondary title: |
Thermo-mechanical analysis of screw joints in tool segments for high-pressure aluminum die casting |
Secondary abstract: |
Die casting tool for casting aluminum alloys endures cyclic thermal and mechanical loads. Particular parts of the tool are subjected to high loads. With the goal of simplifying the maintenance process, parts of the tool are constructed as separate bolted segments. In this M. Sc. thesis, we made a thermo-mechanical analysis in Abaqus software environment. Contacts between tool parts and cyclic load, which appear during high pressure aluminum casting, were taken into account. First, we analysed a reference construction which experienced bolt failure and confirmed cyclic loading as a responsible mechanism. Based on the analysis of thermo-mechanical state in die casting tool, modification of bolt joint was proposed. The new construction results in more favourable stress state. |
Secondary keywords: |
master thesis;thermal analysis;mechanical analysis;die casting tool;screw joint;bolt joint;fatigue analysis;FEM; |
Type (COBISS): |
Master's thesis/paper |
Study programme: |
0 |
Embargo end date (OpenAIRE): |
1970-01-01 |
Thesis comment: |
Univ. Ljubljana, Fak. za strojništvo |
Pages: |
XXII, 64 str. |
ID: |
24426535 |