Simulacija tlačnog lijevanja poklopca od aluminijeve legure

undergraduate thesis

• Title (english): High pressure die casting simulation od aluminium alloy cover
• Author: Ivan Mikulić
• Mentor: Branko Bauer (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2022-03-03, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

U ovom radu dan je opis tehnologije tlačnog lijeva. Opisane su dvije vrste procesa s obzirom na izvedbu strojeva za tlačni lijev. Uz opis strojeva opisani su parametri kojima se može utjecati na sami proces lijevanja te na svojstva odljevka. Nakon toga opisane su najčešće legure koje se upotrebljavaju za tlačni lijev te specifično legura AlSi9Cu3 od koje je napravljen zadani odljevak korišten za eksperimentalni dio. Također su opisane i objašnjene najčešće greške kod tlačnog lijeva. U eksperimentalnom dijelu rada provedene su tri simulacije u programskom paketu ProCAST, za različite brzine tlačnog klipa u sporoj fazi gibanja. Za svaku simulaciju je napravljena analiza punjenja kalupa, prisutnosti zraka u kalupu, vremena skrućivanja odljevka, udjela krute faze, poroznosti skupljanja te oksidnih uključaka. Pomoću navedenih analiza određen je utjecaj brzine tlačnog klipa na kvalitetu odljevka.

Abstract (english)

In this thesis a description of die casting technology is given. Two types of processes were described with respect to the performance of die casting machines. In addition to the description of the machines, the parameters that can affect the casting process, as well as the properties of the casting were described. After that, the most common die casting alloys were described, and specifically the alloy AlSi9Cu3 from which the default casting used for the experimental part was made. The most common defects in die casting were also described and explained. In the experimental part of the paper, three simulations were performed, in the ProCAST software package, for different plunger slow phase speeds. For each simulation, an analysis of mold filling, air entrapment, solidification time, fraction solid, shrinkage porosity and oxide inclusions was performed. Using analyzes, the influence of the plunger slow phase speed on the quality of the casting was determined.

• Keywords: tlačni lijev; parametri; spora faza; simulacija; analiza; ProCAST
• Keywords (english): die casting; parameters; slow phase; simulation; analysis; ProCAST
• Language: croatian
• URN:NBN: urn:nbn:hr:235:194206
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-02-27 20:05:27