magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
Jaka Majerčič (Author), Davorin Kramar (Mentor)

Abstract

V magistrskem delu je predstavljena optimizacija procesnih parametrov konturnega 3-osnega frezanja. Glavni cilj je pridobitev zahtevane hrapavosti v območju med 0,2 %m in 0,4 %m ob maksimalni produktivnosti procesa. Obdelovanec je iz orodnega jekla OCR12VM (1.2379). V magistrskem delu je opisan proces priprave dveh eksperimentalnih vzorcev, strategija obdelave, načrtovanje eksperimentov, priprave na izvedbo eksperimenta, meritve hrapavosti, optimizacija procesnih parametrov, preverjanje obstojnosti obdelave CBN krogelnih frezal ter stroškovna analiza. Zaradi želje po bolj kakovostni površini in povečanju produktivnosti procesa smo s pomočjo metode načrtovanja eksperimentov preizkusili sposobnost dveh CBN krogelnih frezal različnih proizvajalcev. Ugotovili smo, da z obema frezaloma dosežemo našo glavno zahtevo po dosegu kakovostne površine. Poleg omenjenega pa smo z eksperimentalnim delom in analizami prišli tudi do ugotovitev, da se frezali razlikujeta glede na vplivne faktorje obdelave, produktivnost in stabilnost procesa ter stroške obdelave.

Keywords

magistrske naloge;CBN krogelna frezala;konturno 3-osno frezanje;orodna jekla;načrtovanje eksperimentov;optimizacija procesnih parametrov;hrapavost;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [J. Majerčič]
UDC: 621.914.2:669.14(043.2)
COBISS: 16921627 Link will open in a new window
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Downloads: 252
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Other data

Secondary language: English
Secondary title: Optimization of milling parameters for machining of tool steel in solid state
Secondary abstract: The master`s thesis presents the optimization of the process parameters of the 3-axis milling. The main goal is to obtain the required roughness in the range of 0,2 %m and 0,4 %m with maximum process productivity. The workpiece is made of tool steel OCR12VM (1.2379). The master thesis describes the process of preparation of the 2 experimental samples, the processing strategy, the design of experiments, experiment preparation, roughness measuring, process parameter optimization, durability checking of the CBN ball end mills and cost analysis. Due to the desire of getting better surface quality and increase the process productivity, we used the method design of experiment and tested the ability of 2 CBN ball end mills. We have found that with both cutters we achieve our main requirement of surface quality. But in addition, through experimental work and analysis, we have also come to the conclusion that cutters differ in the influence of processing factors, productivity and stability of the process and the required processing cost.
Secondary keywords: master thesis;CBN ball end mills;contour 3-axis milling;tool steel;OCR12VM-1.2379;planning of experiments, optimization of process parameters, roughness;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. Ljubljana, Fak. za strojništvo
Pages: XXIV, [101] str.
ID: 11217215
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