Lijevanje ploče od aluminijske legure

master's thesis

• Title (english): Casting of aluminium alloy plate
• Author: Hrvoje Matković
• Mentor: Branko Bauer (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2014-12-04, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U radu su navedene i opisane osnove lijevanja s posebnim naglaskom na utjecaj konstrukcije uljevnog sustava na proizvodnju kvalitetnog odljevka. Pojašnjeni su principi ulijevanja zajedno sa problemima koji se pojavljuju u konstrukciji uljevnog sustava. Primjeri problematike konstruiranja uljevnih sustava prikazani su slikama. Primjeri koji teorijski objašnjavaju zbivanja unutar kalupa koji se odnose na lijevanje primjenom vertikalnog uljevnog sustava ulijevanjem odozdo, izravno i preko pojila, te lijevanja pomoću vertikalnog stepenastog uljevnog sustava, direktno i pomoću vertikalnog razvodnika, analizirani su u praktiĉnom dijelu rada. Konstruirani su CAD modeli navedenih uljevnih sustava, te je napravljena simulacija lijevanja i skrućivanja u simulacijskom programu QuikCAST. IzraĊeni su drveni modeli uljevnih sustava dimenzija korištenih u simulaciji, pomoću kojih su izraĊeni kalupi od svjeţe kalupne mješavine u koje su lijevani stvarni odljevci. Rezultati simulacije dobro se podudaraju sa rezultatima na stvarnim odljevcima.

Abstract (english)

In this paper, the basics of casting are described with an emphasis on impact of gating system design on high-quality casting production. Additionally, pouring principles are explained together with the problems concerning gating system design. Examples of the problems of gating system design are shown in many figures. Examples which theoretically explain occurrences inside the mould relating to the application of a vertical casting system such as direct bottom gating or bottom gating through riser, and casting using a vertical step gating system, direct and with vertical runner, were analyzed in the practical part of the work. CAD models of mentioned gating systems were designed and simulation of filling and solidification processes was done using QuikCAST software. Wooden patterns of gating systems were manufactured in dimensions used in the simulation. Moulds for casting of real castings were made using green sand mixture. The simulation results are in good agreement with the results of real castings.

• Keywords: lijevanje; aluminijska legura; odljevak; uljevni sustav; principi ulijevanja
• Keywords (english): casting; gating system; principles of pouring
• Language: croatian
• URN:NBN: urn:nbn:hr:235:789637
• 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: Access restricted to students and staff of home institution
• Created on: 2019-05-22 12:04:38