Simulation of Cold Extrusion of Hollow Parts
| Autor: | D. A. Kartamyshev, L. I. Alieva, I. G. Savchinskii, V. L. Kalyuzhnyi |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.product_category 020209 energy 0211 other engineering and technologies Metals and Alloys 02 engineering and technology Condensed Matter Physics Brass Mechanics of Materials visual_art 021105 building & construction Metallic materials 0202 electrical engineering electronic engineering information engineering Materials Chemistry visual_art.visual_art_medium Die (manufacturing) Extrusion Composite material business Displacement (fluid) Intensity (heat transfer) Stress intensity factor |
| Zdroj: | Metallurgist. 61:359-365 |
| ISSN: | 1573-8892 0026-0894 |
| DOI: | 10.1007/s11015-017-0501-1 |
| Popis: | The finite-element method is used to study the effect of the design parameters of the die on the production of hollow brass parts by cold direct extrusion and expansion on a cone punch. The results are compared with data on conventional indirect extrusion. The elastic deformation and increase in the temperature of the metal during cold extrusion are taken into account. Intermediate and final shapes and dimensions of workpieces are determined by simulation. The dependence of the extrusion force on the tool displacement and the distribution of normal stress over the tool–workpiece contact surface under the maximum force is established. The stress-strain state of the workpiece during extrusion is determined. The distribution of stress intensity, strain intensity, and temperature over the deformed workpiece at the final stage of extrusion is plotted. Rational design parameters of a die for direct extrusion and expansion are proposed. |
| Databáze: | OpenAIRE |
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