zaključna naloga Razvojno raziskovalnega programa I. stopnje Strojništvo
David Lužar (Author), Andrej Lebar (Mentor), Joško Valentinčič (Co-mentor)

Abstract

Obdelava z abrazivnim vodnim curkom spada med nekonvencionalne tehnologije. V procesu se v rezalno glavo dodaja abraziv, kjer ga visoko hitrostni curek pospeši. Zaradi velike energije delcev abraziva in vode lahko na ta način obdelujemo različne materiale. Glavna prednost tega načina obdelave je, da na obdelovancu ne pušča toplotno vplivanega področja. Na kakovost površine vpliva več parametrov. V delu smo se posvetili postopku dovajanja abraziva, natančneje samemu masnemu pretoku abraziva. S spreminjanjem poti, po kateri abraziv pripotuje do mešalne komore, smo opazovali spremembe v masnem pretoku. Glede na rezultate meritev smo nato ovrednotili primerne pogoje za konstanten masni pretok. Dotaknili smo se tudi vplivov lastnosti abrazivov na pretočnost abrazivov.

Keywords

diplomske naloge;abrazivni vodni curek;abrazivi;masni pretoki;nakloni;meritve;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [D. Lužar]
UDC: 621.9.04:666.792:532.57(043.2)
COBISS: 32333827 Link will open in a new window
Views: 608
Downloads: 99
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Other data

Secondary language: English
Secondary title: Measuring the mass flow of the abrasive depending on the transport path
Secondary abstract: Treatment with the abrasive water jet cutter is one of the unconventional technologies. In the process, an abrasive is added to the cutting head. There, the high-speed water jet accelerates the abrasive. Due to the high energy of the abrasive particles and water, various materials can be processed this way. The main advantage of this method of treatment is that it does not leave a heat-affected zone on the workpiece. Surface quality is affected by several parameters. In this work, we focus on the abrasive delivery process, more precisely on the abrasive mass flow itself. By changing the path along which the abrasive travels to the mixing chamber, changes in mass flow were observed. Based on the measurement results, we then evaluated the appropriate conditions for constant mass flow. We also touched upon the effects of abrasive properties on the abrasive flow itself.
Secondary keywords: thesis;abrasive water jet;abrasives;mass flow;inclinations;measurements;
Type (COBISS): Final paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XVI, 48 f.
ID: 12036943
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