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The impact of die angle on tool loading in the process of cold extruding steel = Vpliv kota matrice na obremenitev orodja pri hladni ekstruziji jeklaRandjelović, Saša ...This paper presents an analysis of tool loading in the technology of the cold forward extrusion of steel. In the process of plastic deformation it is necessary to know the contact stress as a ... prerequisite for a more accurate analysis of the stress and strain on the internal structure of the continuum. In this way, accurate boundary conditions at the contact surfaces are obtained for the achieved conditions of deformation, which represent the starting values for generating numerical approximations of the plasticity parameter changes within the deformable volume. In the process of the forward extrusion of steel the workpiece material is exposed to all-round pressure during the entire process. Due to the high surface pressure at the head of the punch and the solid walls of the die, the material flows in the direction of the opening of the exchangeable conical surfaces of the die. During the extrusion process, the greatest resistance occurs in the direction of the axis displacement, i.e., the head punch, while the walls of the tools suffer considerably smaller loads. However, this has crucial importance for the accuracy and the quality of the finished part.Source: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 46, št. 2, mar.-apr. 2012, str. 149-154)Type of material - article, component partPublish date - 2012Language - englishCOBISS.SI-ID - 930474
Author
Randjelović, Saša |
Manić, Miodrag |
Trajanović, Miroslav |
Milutinović, Mladomir |
Movrin, Dejan
Topics
cold extrusion |
stell |
stress |
deformation |
hladna ekstruzija |
jeklo |
napetosti |
deformacije
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source: Materiali in tehnologije = Materials and technology. - ISSN 1580-2949 (Letn. 46, št. 2, mar.-apr. 2012, str. 149-154)
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Randjelović, Saša | ![]() |
Manić, Miodrag | ![]() |
Trajanović, Miroslav | ![]() |
Milutinović, Mladomir | ![]() |
Movrin, Dejan | ![]() |
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