Utjecaj vrste uljevnog sustava na lijevanje nosača ležaja

master's thesis

• Title (english): Influence of gating system type on the casting of bearing bracket
• Author: Ivan Poslon
• Mentor: Branko Bauer (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2023-12-07, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

U radu je opisano lijevanje aluminijskih legura, a najviše lijevanje aluminija i njegovih legura u kalupe od pijeska. Pojašnjeni su dijelovi uljevnog sustava, te je napravljen proračun osnovnih dijelova uljevnog sustava. Opisano je i napajanje odljevaka te način skrućivanja. Približe su prikazane i pogreške koje su vidljive na odljevcima. U teorijskom dijelu opisana je i primjena računalnih simulacija kod lijevanja.
U praktičnom dijelu rada konstruiran je model sa različitim varijantama uljevnog sustava. Uspoređeni su rezultati za semitlačni i tlačni uljevni sustav koji su dobiveni numeričkom simulacijom u programu ProCAST. Također prikazan je i proces izrade kalupa, te proces lijevanja. Greške na odljevku podudaraju se rezultatima simulacije.

Abstract (english)

This thesis describes the casting of aluminium alloys, especially the casting of aluminium alloys
in expendable sand moulds. The parts of the gating system explained and the calculation of the
basic parts of the gating system was made. Feeding of castings and the solidification mode are
also described. Defects that occur on the castings are also shown. The application of computer
simulations in casting is also described in the theoretical part.
In the practical part of the thesis, a model of the casting with different variants of the gating
system was constructed. The results for pressurised and non-pressurised gating system were
compared. Results were obtained by numerical simulation in the ProCAST software. The mould
making process and the casting process are also shown. At the end, the defects that occur in the
casting are described. The casting defects match with the simulation results.

• Keywords: Uljevni sustav; kalupljenje; lijevanje u pješčani kalup; računalna simulacija
• Keywords (english): gating system; moulding; sand casting; computer simulation
• Language: croatian
• URN:NBN: urn:nbn:hr:235:473445
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-11-30 11:59:58