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Vpliv tehnoloških parametrov na kakovost ulitka pri tlačnem litju
ID Vuk, Enej (Author), ID Kramar, Davorin (Mentor) More about this mentor... This link opens in a new window

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Abstract
V diplomskem delu je uvodoma predstavljena tehnologija visokotlačnega litja s poudarkom na njenih prednostih in slabostih. V nadaljevanju je bolj natančno razložen proces visokotlačnega litja znotraj livarske celice in prav tako sta opisana poglavitna elementa tehnologije visokotlačnega litja ? livarski tlačni stroj in livarsko orodje. Omenjeni sta tudi najpogosteje uporabljeni aluminijevi zlitini. Obrazložene so livarske napake in vzroki za njihov nastanek. Posebna pozornost je posvečena poroznosti, ki je najpogostejša livarska napaka. Na sposobnost doseganja strogih zahtev glede kakovosti ulitka v določeni meri vpliva ustrezna nastavitev tehnoloških parametrov litja. V procesu visokotlačnega litja so vedno prisotne variacije parametrov, ki jih omejujemo z mejami tehnoloških območij posameznega parametra. V kolikor se povratna meritev nastavitve parametra nahaja znotraj tehnoloških meja, velja ulitek za dobrega – kakovostnega. V diplomskem delu je na eksperimentalni način z uporabo metode OVAT predstavljena kontrola pravilnosti postavitve tehnoloških meja najvplivnejših livarskih parametrov. Pravilnost postavitve tehnoloških meja je določena na podlagi vrednotenja kakovosti ulitkov z rentgensko analizo.

Language:Slovenian
Keywords:visokotlačno litje, tehnološki parametri litja, livarske napake, aluminijeva zlitina, kakovost, poroznost, ulitek
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[E. Vuk]
Year:2021
Number of pages:XXII, 51 str.
PID:20.500.12556/RUL-130014 This link opens in a new window
UDC:621.74.043:669.715(043.2)
COBISS.SI-ID:76518659 This link opens in a new window
Publication date in RUL:10.09.2021
Views:1038
Downloads:240
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Secondary language

Language:English
Title:Influence of technological parameters on cast quality in pressure die casting
Abstract:
The introduction of this assignment presents the advantages and disadvantages of high pressure die casting technology. In the following part of this assignment the production process of high pressure die casting, casting machine and the casting die is presented. The most used aluminum alloys, die casting defects and the reasons for their occurrence are also described. Special attention is given to porosity, which is the most common casting defect. To be able to meet strict casting quality requirements, machine injection parameters must be set appropriately, so that casting defects such as porosity are minimized or completely removed. In the process of high pressure die casting, variations of injection parameters are always present. Variations of injection parameters are limited by limits of the technological areas of each parameter. If the return measurement of the parameter is within the technological limits, the die casting part is considered good. The assignment presents an experimental control of the correctness of the technological limits settings, of the most influential die casting machine parameters using the OVAT method. The correctness of the technological limits settings is determined with X-ray die cast part quality analysis.

Keywords:high pressure die casting, technological parameters, casting defects, aluminum alloy, quality, porosity, die cast part

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