<?xml version="1.0"?><rdf:RDF xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:edm="http://www.europeana.eu/schemas/edm/" xmlns:wgs84_pos="http://www.w3.org/2003/01/geo/wgs84_pos" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:rdaGr2="http://rdvocab.info/ElementsGr2" xmlns:oai="http://www.openarchives.org/OAI/2.0/" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:ore="http://www.openarchives.org/ore/terms/" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:dcterms="http://purl.org/dc/terms/"><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:DOC-GBPU5O95/fde17ac8-3ea2-46bb-97ab-ebb5f8f2896a/HTML"><dcterms:extent>47 KB</dcterms:extent></edm:WebResource><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:DOC-GBPU5O95/fed9b254-d73a-457c-a995-e35ba4ddd7ce/PDF"><dcterms:extent>779 KB</dcterms:extent></edm:WebResource><edm:WebResource rdf:about="http://www.dlib.si/stream/URN:NBN:SI:DOC-GBPU5O95/e7e5c356-0057-4193-a449-f0407e4436a4/TEXT"><dcterms:extent>45 KB</dcterms:extent></edm:WebResource><edm:TimeSpan rdf:about="1999-2026"><edm:begin xml:lang="en">1999</edm:begin><edm:end xml:lang="en">2026</edm:end></edm:TimeSpan><edm:ProvidedCHO rdf:about="URN:NBN:SI:DOC-GBPU5O95"><dcterms:isPartOf rdf:resource="https://www.dlib.si/details/URN:NBN:SI:spr-6QOUKQ9A" /><dcterms:issued>2004</dcterms:issued><dc:creator>Pepelnjak, Tomaž</dc:creator><dc:format xml:lang="sl">številka:1</dc:format><dc:format xml:lang="sl">13 strani</dc:format><dc:format xml:lang="sl">letnik:50</dc:format><dc:format xml:lang="sl">str. 31-43</dc:format><dc:identifier>ISSN:0039-2480</dc:identifier><dc:identifier>COBISSID:7212827</dc:identifier><dc:identifier>URN:URN:NBN:SI:doc-GBPU5O95</dc:identifier><dc:language>en</dc:language><dc:language>sl</dc:language><dc:publisher xml:lang="sl">Association of Mechanical Engineers and Technicians of Slovenia et al.</dc:publisher><dc:publisher xml:lang="sl">Zveza strojnih inženirjev in tehnikov Slovenije et al.</dc:publisher><dcterms:isPartOf xml:lang="sl">Strojniški vestnik</dcterms:isPartOf><dc:subject xml:lang="sl">analize končnih elementov</dc:subject><dc:subject xml:lang="sl">cevi</dc:subject><dc:subject xml:lang="sl">parametri postopka</dc:subject><dc:subject xml:lang="sl">preoblikovanje</dc:subject><dc:subject xml:lang="sl">preoblikovanje cevi</dc:subject><dc:subject xml:lang="sl">tlaki visoki</dc:subject><dcterms:temporal rdf:resource="1999-2026" /><dc:title xml:lang="sl">Numerične analize preoblikovanja cevi z visokim notranjim tlakom| Numerical analysis of tube hydroforming by high internal pressure|</dc:title><dc:description xml:lang="sl">Because of demands for increased vehicle rigidity, along with a simultaneous reduction of vehicle weight, the automotive industry is facing technological problems involving the manufacture of ever more complex formed parts. Often, the shape and mechanical properties of formed parts no longer permit their manufacture using conventional forming technologies, such as bending, stretching and deep drawing. Due to the complexity of primarily structural vehicle parts, tube hydroforming is increasingly used. However, because of the large number of process parameters, this procedure is very demanding. Forming pressures inside a tube with orders of magnitude of a few hundred to afew thousand bars represent a process limitation that requires special forming tools and machines. This paper presents the process parameters of tubehydroforming, the analysed process and the geometrical parameters, and theperformed numerical simulations for the forming of two typical formed parts-T-parts and Y-parts</dc:description><dc:description xml:lang="sl">Avtomobilska industrija se zaradi zahtev po povečevanju togosti vozil ob hkratnem zmanjševanju njihove mase srečuje s tehnološkimi problemi izdelave vse bolj zahtevnih preoblikovanih komponent. Oblikovne in mehanske lastnosti preoblikovancev pogosto ne omogočajo več izdelave z običajnimi preoblikovalnimi tehnologijami, kakor so krivljenje, izbočevanje in globoki vlek. Zaradi zahtevnosti predvsem strukturnih delov avtomobila se vse pogosteje uporablja preoblikovanje cevi z medijem pri visokih notranjih tlakih. Postopek je zaradi velikega stevila parametrov zelo zahteven. Preoblikovalni tlaki reda velikosti od nekaj sto do nekaj tisoč barov delujejov notranjosti cevi in pomenijo omejitev, ki zahteva posebna preoblikovalna orodja in stroje. V prispevku so predstavljeni parametri preoblikovanja cevi z medijem pri visokih notranjih tlakih, analizirani postopkovni in geometrijski parametri postopka ter izvedene numerične simulacije preoblikovanja dveh tipičnih preoblikovancev - kosa T in kosa Y</dc:description><edm:type>TEXT</edm:type><dc:type xml:lang="sl">znanstveno časopisje</dc:type><dc:type xml:lang="en">journals</dc:type><dc:type rdf:resource="http://www.wikidata.org/entity/Q361785" /></edm:ProvidedCHO><ore:Aggregation rdf:about="http://www.dlib.si/?URN=URN:NBN:SI:DOC-GBPU5O95"><edm:aggregatedCHO rdf:resource="URN:NBN:SI:DOC-GBPU5O95" /><edm:isShownBy rdf:resource="http://www.dlib.si/stream/URN:NBN:SI:DOC-GBPU5O95/fed9b254-d73a-457c-a995-e35ba4ddd7ce/PDF" /><edm:rights rdf:resource="http://rightsstatements.org/vocab/InC/1.0/" /><edm:provider>Slovenian National E-content Aggregator</edm:provider><edm:intermediateProvider xml:lang="en">National and University Library of Slovenia</edm:intermediateProvider><edm:dataProvider xml:lang="sl">Univerza v Ljubljani, Fakulteta za strojništvo</edm:dataProvider><edm:object rdf:resource="http://www.dlib.si/streamdb/URN:NBN:SI:DOC-GBPU5O95/maxi/edm" /><edm:isShownAt rdf:resource="http://www.dlib.si/details/URN:NBN:SI:DOC-GBPU5O95" /></ore:Aggregation></rdf:RDF>