| Title: | Modelling and simulation of hot direct extrusion process for optimal product characteristics: single and multi-response optimization approach |
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| Authors: | ID Elplacy, F. (Author)
ID Samuel, M. (Author)
ID Mostafa, R. (Author) |
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| Files: |  APEM17-1_033-044.pdf (1,36 MB)
MD5: AAA48977B270786195444798348243BF
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FS - Faculty of Mechanical Engineering
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| Abstract: | The study of eccentricity minimization in cylindrical products helps to reduce the mechanical vibrations and wear of related mechanical parts such as bearings, columns and gears which positively affects in maintenance costs savings and increasing production quality reliability. The main purpose of this paper is to investigate the effect of the eccentricity between the billet material and the die parts on the quality of the final product in the direct extrusion process. The input parameters to produce a cylindrical product shape are optimized in MINITAB based on Taguchi method and ANOVA. The selected material of the billet is the aluminium alloy AA2024, and the die material is Steel H13. The inputs parameters are the temperature, the die angle, the ram speed, and the presumed eccentricity. The finite element model of the process is simulated in DFORM-3D for providing the extrusion information such as the pressure, the effective stress and strain, the final product eccentricity, and the roundness error. The study is carried out on two cases of the presumed eccentricity in addition to a case of zero eccentricity. The single and multi-response optimizations are executed to obtain the optimum parameters for the minimum product eccentricity and roundness error. |
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| Keywords: | metal forming, hot direct extrusion, eccentricity, optimization, roundness, simulation, modelling, single response, multi-response, DEFORM-3D, MINITAB |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 11.01.2022 |
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| Article acceptance date: | 28.02.2022 |
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| Publication date: | 29.04.2022 |
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| Publisher: | Fakulteta za strojništvo, Inštitut za proizvodno strojništvo |
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| Year of publishing: | 2022 |
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| Number of pages: | str. 33-44 |
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| Numbering: | Vol. 17, no. 1 |
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| PID: | 20.500.12556/DKUM-97133  |
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| UDC: | 658.5 |
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| ISSN on article: | 1854-6250 |
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| COBISS.SI-ID: | 268996867 |
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| DOI: | 10.14743/apem2022.1.419 |
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| Copyright: | Content from this work may be used under the terms of the Creative Commons Attribution 4.0 International Licence (CC BY 4.0). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation, and DOI.
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| Publication date in DKUM: | 19.02.2026 |
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| Views: | 144 |
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| Downloads: | 2 |
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| Metadata: |    |
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| Categories: | Misc.
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