Thematische Bibliographien / Reverse deep drawing

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Auswahl der wissenschaftlichen Literatur zum Thema „Reverse deep drawing“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 1. Februar 2022

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Zeitschriftenartikel zum Thema "Reverse deep drawing"

Manach, P. Y., Marta C. Oliveira, S. Thuillier und Luís Filipe Menezes. „Reverse Deep Drawing: Experimental and Numerical Simulation Results“. Key Engineering Materials 230-232 (Oktober 2002): 541–44. http://dx.doi.org/10.4028/www.scientific.net/kem.230-232.541.

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Ben Othmen, Khadija, Kacem Sai, Pierre-Yves Manach und Khaled Elleuch. „Reverse deep drawing process: Material anisotropy and work-hardening effects“. Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 233, Nr. 4 (09.04.2017): 699–713. http://dx.doi.org/10.1177/1464420717701950.

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The present work aims to study the constitutive models’ influence on the reverse deep drawing simulation of cylindrical cups. Several constitutive laws were considered to predict the combined effects of anisotropy as well as the changes in strain path direction of the stainless steel. To this end, a number of models were used, worth mentioning among which are the isotropic with nonlinear kinematic hardening laws, along with the isotropic von Mises and anisotropic Hill’48 yield criteria. For the models’ parameters identification, uniaxial tensile and shear tests at several orientations to the rolling direction as well as reversed shear tests were carried out. Then, a subsequent comparison between experimental data and numerical simulations of reverse deep drawing tests were performed, using the finite element code Abaqus/Explicit. On the basis of the major reached results, it has been found that for the first stage, whatever the yield criteria used and for all the hardening models, the numerical punch-force evolution correlates well with the experimental one. For the second stage, the punch-force evolution was found to be remarkably more influenced by the yield criteria than by the kinematic laws. The major strain distribution greatly depends on the yield criteria. Meanwhile, it was slightly linked to the work hardening.

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Kim, J. B., D. W. Lee, D. Y. Yang und C. S. Park. „Investigation into hydromechanical reverse redrawing assisted by separate radial pressure—process development and theoretical verification“. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 211, Nr. 6 (01.06.1997): 451–62. http://dx.doi.org/10.1243/0954405971516419.

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High-quality cups with a deep drawing ratio of more than four cannot be simply drawn by conventional drawing and redrawing. A special technology is required to form cups of a high deep drawing ratio. In the present study, after the conventional mechanical deep drawing process, subsequent hydromechanical reverse redrawing with controlled radial pressure has been developed. In order to increase the deep drawing ratio by more than four, the radial pressure is controlled independently of the chamber pressure and thus an optimum forming condition can be determined by varying the radial pressure. The process has been verified by a rigid-plastic finite element (FE) analysis considering all the external force boundary conditions induced by the hydrostatic pressure. The pressure distribution on the sheet is calculated numerically from the simplified Navier-Stokes equation. Through the experiment and the FE analysis, it has been shown that hydromechanical reverse redrawing assisted by separate radial pressure, developed in the present study, helps to increase the drawability of cylindrical cups, and thus it is useful when forming long cups.

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Ayachi, N., N. Guermazi, PY Manach und S. Thuillier. „Design of a reverse deep drawing experiment enhancing strain path changes“. Journal of Physics: Conference Series 1063 (Juli 2018): 012133. http://dx.doi.org/10.1088/1742-6596/1063/1/012133.

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Yang, Tung Sheng, Yuan Chuan Hsu, Heng Sheng Lin und Sheng Yi Chang. „A Finite Element Analysis for the Initial Blank’s Shape Design of Sheet Metal in Deep Drawing Process“. Key Engineering Materials 364-366 (Dezember 2007): 980–85. http://dx.doi.org/10.4028/www.scientific.net/kem.364-366.980.

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In the deep drawing of cups, the earing defect is caused primarily by planar anisotropy in the sheet. In order to obtain the optimal products in deep drawing process, blank shape is a very important formability factor. In this study, the finite element method was used to investigate the cup height and forming force of the cylindrical cup drawing process. A finite element analysis was also utilized to acquire the designed profile of the drawn products, a reverse forming method for obtaining the initial blank’s shape according to the forward cylindrical cup drawing simulation is proposed. The design of initial blank’s shape is also confirmed to obtain the designed profile of drawn cups. The influences of the blank’s shape on the height of product, the forming force, the effective stress and the effective strain were also examined.

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Nakamura, K., und T. Nakagawa. „Reverse Deep Drawing with Hydraulic Counter Pressure Using the Peripheral Pushing Effect“. CIRP Annals 35, Nr. 1 (1986): 173–76. http://dx.doi.org/10.1016/s0007-8506(07)61864-2.

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Yang, Tung Sheng, und Yuan Chuan Hsu. „The Prediction of Earing and the Design of Initial Shape of Blank in Cylindrical Cup Drawing“. Materials Science Forum 532-533 (Dezember 2006): 865–68. http://dx.doi.org/10.4028/www.scientific.net/msf.532-533.865.

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The parameters such as aniotropic property, blank holder force and friction coefficient between tool and blank are not only effect on the forming force, stress and strain distribution of the worpiece, but also on the earing in products. In this paper, the finite element method is used to investigate the earing of the deep drawing process. In order to verify the prediction of FEM simulation of the earing in the cylindrical cup drawing process, the experimental data are compared with the results of the current simulation. A finite element analysis is also utilized to reduce the earing profile of the drawn products, a reverse forming method for obtaining the initial blank’s shape according to the forward cup deep drawing simulation is proposed.

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Neto, D. M., M. C. Oliveira, J. L. Alves und L. F. Menezes. „Influence of the plastic anisotropy modelling in the reverse deep drawing process simulation“. Materials & Design 60 (August 2014): 368–79. http://dx.doi.org/10.1016/j.matdes.2014.04.008.

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Zhang, Zhichao, Yongchao Xu und S. J. Yuan. „Bending effect on fracture of 5A06 aluminum alloy plate during reverse deep drawing“. International Journal of Advanced Manufacturing Technology 89, Nr. 1-4 (30.06.2016): 283–93. http://dx.doi.org/10.1007/s00170-016-9054-x.

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Ambrogio, Giuseppina, Luigino Filice, Archimede Forcellese, G. Leonardo Manco und M. Simoncini. „Process Parameter Effects on the LDR in Warm Deep Drawing of Magnesium Alloys“. Key Engineering Materials 410-411 (März 2009): 587–93. http://dx.doi.org/10.4028/www.scientific.net/kem.410-411.587.

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The present work is focused on the investigation of the role of temperature and punch speed in warm deep drawing of AZ31 magnesium alloy. To this purpose, an experimental campaign, defined using a proper DOE approach, has been performed. The experimental results, in terms of the Limiting Drawing Ratio, have shown that drawability is strongly affected by the process parameters. In particular, Limiting Drawing Ratio exhibits the peak value at 250°C. As far as the effect of punch speed is concerned, it depends on temperature: at 200°C drawability increases with decreasing punch speed whilst a reverse behaviour is observed at 250 and 300°C. The experimental results have been analysed by ANOVA in order to evaluate the effect of the single independent factors and their interactions on the dependent one.

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Dissertationen zum Thema "Reverse deep drawing"

Mergeščíková, Lenka. „Výroba závěsu lustru“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-445167.

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The master’s thesis presents a design for the technology of manufacture of a chandelier hinge from the material ČSN 42 3005 (Cu99.5) with a sheet thickness of 0.5 mm. Due to the spherical shape of the part and the series 40 000 parts per year, the technology of deep drawing was chosen for two drawing operations, while the redrawing is performed by reverse deep drawing. Due to the nature of the component, the additional technology is shearing. The manufacturability of the part was verified using numerical simulation in the PAM-STAMP software. The forming process is performed using three forming tools on three different presses. For the first, combined tool, an LE 160C eccentric press is used. A hydraulic press ZHO100 is applied in the second tool for the reverse drawing, and finally, an eccentric press LEK160 is applied for the shearing in the third operation. With the selected profit value of 25 %, the final price for the component was set at CZK 104.17. The turning point occurs after reaching 16 248 parts.

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Buchteile zum Thema "Reverse deep drawing"

Power, Henry. „Coins and Circulation in Addison’s Prose“. In Joseph Addison, 80–94. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198814030.003.0005.

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In his Remarks on Several Parts of Italy (1705), Addison regularly draws on his deep knowledge of Latin poetry in order to ‘compare the natural face of the country with the Landskips that the Poets have given us of it’. Less conventionally, but just as regularly, he elucidates landscape, history, and antiquities through reference to ancient coins. Roughly contemporaneously, Addison wrote a defence of numismatics in the Dialogues Upon the Usefulness of Ancient Medals (published posthumously in 1721), in which one character, Philander, seeks to persuade Cynthio from his view that numismatists are mere ‘critics in Rust’ (Cynthio’s view closely resembling the attacks on Bentley and others by satirists such as William King). Addison, through Philander’s person, sees the poems and medals he juxtaposes as representing ‘the same design executed by different hands’; ‘A reverse often clears up the passages of an old poet, as the poet often serves to unriddle a reverse.’ But coins have, for Addison, a moral as well as an explanatory function, publicizing the characters and deeds of great men and women by keeping them in circulation. This chapter explores the relationship between the moral and the fiscal function of coins, drawing out connections between Addison’s views on ancient numismatics and his approach both to modern British coinage and to the circulation of texts and ideas.

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Konferenzberichte zum Thema "Reverse deep drawing"

Jianjun, Wu. „Potential Theory Based Blank Design for Deep Drawing Irregular Shaped Components“. In ASME 2008 International Manufacturing Science and Engineering Conference collocated with the 3rd JSME/ASME International Conference on Materials and Processing. ASMEDC, 2008. http://dx.doi.org/10.1115/msec_icmp2008-72544.

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A computer aided blank design method based on the potential theory and boundary element methods is presented. The potential theory approximately describes the material flow involved in deep drawing processes. Using the CAD model of an irregular shaped component, a specific number of cross sections at different heights can be generated. In order to obtain the blank shape, the outermost contour is determined by developing these sections gradually. This blank design procedure is like an imaginary reverse material flow governed by the potential theory. In addition, the boundary element method provides a good computational efficiency. This computer aided design method has been found effective by a manufacturer and the proposed approach can be used for a wide variety of complicated deep drawing components.

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Zhao, Lei, und Ting Wang. „An Investigation of Treating Adiabatic Wall Temperature as the Driving Temperature in Film Cooling Studies“. In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-46012.

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In film cooling heat transfer analysis, one of the core concepts is to deem film cooled adiabatic wall temperature (Taw) as the driving potential for the actual heat flux over the film-cooled surface. Theoretically, the concept of treating Taw as the driving temperature potential is drawn from compressible flow theory when viscous dissipation becomes the heat source near the wall and creates higher wall temperature than in the flowing gas. But in conditions where viscous dissipation is negligible, which is common in experiments under laboratory conditions, the heat source is not from near the wall but from the main hot gas stream; therefore, the concept of treating the adiabatic wall temperature as the driving potential is subjected to examination. To help investigate the role that Taw plays, a series of computational simulations are conducted under typical film cooling conditions over a conjugate wall with internal flow cooling. The result and analysis support the validity of this concept to be used in the film cooling by showing that Taw is indeed the driving temperature potential on the hypothetical zero wall thickness condition, ie. Taw is always higher than Tw with underneath (or internal) cooling and the adiabatic film heat transfer coefficient (haf) is always positive. However, in the conjugate wall cases, Taw is not always higher than wall temperature (Tw), and therefore, Taw does not always play the role as the driving potential. Reversed heat transfer through the airfoil wall from downstream to upstream is possible, and this reversed heat flow will make Tw > Taw in the near injection hole region. Yet evidence supports that Taw can be used to correctly predict the heat flux direction and always result in a positive adiabatic heat transfer coefficient (haf). The results further suggest that two different test walls are recommended for conducting film cooling experiments: a low thermal conductivity material should be used for obtaining accurate Taw and a relative high thermal conductivity material be used for conjugate cooling experiment. Insulating a high-conductivity wall will result in Taw distribution that will not provide correct heat flux or haf values near the injection hole.

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