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Title:Numerična analiza postopka kovanja ohišja krmilnega mehanizma
Authors:ID Gačnik, Franci (Author)
ID Ren, Zoran (Author)
Files:URL http://www.drustvozamehaniko.si/zbornik/ZbornikKD2008.pdf
 
Language:Slovenian
Work type:Unknown
Typology:1.08 - Published Scientific Conference Contribution
Organization:FS - Faculty of Mechanical Engineering
Abstract:V prispevku je predstavljena numerična analiza postopka kovanja ohišja krmilnega mehanizma, ki je sestavni del vsakega avtomobila. Analiziran izdelek se kuje s postopkom vročega utopnega kovanja z brado. V članku je opisana priprava numeričnih modelov, ki so bili uporabljeni v računalniških simulacijah. Opis zajema sestavo numeričnih modelov, materialne parametre in robne pogoje. Analiza postopka kovanja je bila izvedena s pomočjo računalniških simulacij po metodi končnih elementov s programskim paketom Deform 3D, ki uporablja eksplicitno iteracijsko metodo za reševanje vodilnih enačb, kar znatno skrajša potrebni računski čas. S pomočjo parametričnih simulacij je bila določena optimalna geometrija surovca, ki v fazi kovanja v celoti zapolni gravuro orodja. Rezultati analiz kažejo, da je mogoče z uporabo računalniških simulacij postopka kovanja prihraniti precej materiala. Prav tako je mogoče dokaj dobro oceniti potrebno preoblikovalno silo.
Keywords:kovanje, krmilni mehanizem, utopno kovanje, numerično modeliranje
Year of publishing:2008
PID:20.500.12556/DKUM-26263 New window
UDC:621.73:621-22
COBISS.SI-ID:12630294 New window
NUK URN:URN:SI:UM:DK:VWBLAS3U
Publication date in DKUM:31.05.2012
Views:2186
Downloads:76
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Secondary language

Language:English
Title:Computational analysis of the forging process of steering mechanisms' case
Abstract:The paper describes computational analysis of the forging process of steering mechanisms' case, which is used in almost every motor vehicle. The analyzed component is manufactured with the hot drop forging process. Preparation of numerical models used in computer simulations is described. Description includes the structure of numerical models, material parameters and boundary conditions as well. The forging process analysis was performed with computer simulations using the computer code Deform 3D, which is based on the finite element method (FEM). This computer code efficiently uses the explicit iteration method for solving the governing equations, which considerably shortens the computational time. The conducted parametric simulations allowed for determination of optimal geometry of the raw product, which completely fills the die impression during the forging phase. Results of the analysis show that by using computer simulations of the forging process it is possible to save a significant amount of raw material. It is also possible to provide very good estimate of the maximum forming force.
Keywords:forging, steering mechanism, drop forging, numerical modeling


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