Thematische Bibliographien / Spherical deep drawing

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Auswahl der wissenschaftlichen Literatur zum Thema „Spherical deep drawing“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 12. Februar 2022

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Zeitschriftenartikel zum Thema "Spherical deep drawing"

Zhang, Chunxiang, Wenliang Huang, Chenyang Xi, Peng Xue, Baorui Tian und Junting Luo. „Alternate deep drawing process for spherical parts in near equal-thickness wall“. International Journal of Advanced Manufacturing Technology 111, Nr. 1-2 (29.09.2020): 517–24. http://dx.doi.org/10.1007/s00170-020-06135-7.

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Liu, Yang, Feng Li, Chao Li und Jie Xu. „Enhancing formability of spherical bottom cylindrical parts with magnetic medium on deep drawing process“. International Journal of Advanced Manufacturing Technology 103, Nr. 5-8 (09.04.2019): 1669–79. http://dx.doi.org/10.1007/s00170-019-03505-8.

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Chen, Kang, Hui Liu und Cheng Yun Peng. „Research on Algorithm of Forming Limit Height in Semi-Ball Bottom Cylindrical Deep Drawing“. Advanced Materials Research 602-604 (Dezember 2012): 1895–98. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.1895.

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With physical experiments and numerical simulation about semi-ball bottom cylindrical parts and flat-bottomed cylindrical parts, we got the thinning law about spherical bottom of semi-ball bottom cylindrical parts, and got forming limit height difference of semi-ball bottom cylindrical parts and flat-bottomed cylindrical parts under the same conditions. In accordance with the principle of constant volume, the cylindrical ball height of semi-ball bottom cylindrical parts can be converted to draw from the cylindrical part height of the flat-bottomed cylindrical parts, which introduced a method of calculating the forming limit height of semi-ball bottom cylindrical parts. Through practical examples, this algorithm is feasible.

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Liu, Yang, Feng Li, Chao Li und Jie Xu. „Effect of reverse pre-bulging on magnetic medium deep drawing formability of aluminum spherical bottom cylindrical parts“. International Journal of Advanced Manufacturing Technology 103, Nr. 9-12 (03.06.2019): 4649–57. http://dx.doi.org/10.1007/s00170-019-03903-y.

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Morris, P. R., und R. E. Hook. „Comparison of Incomplete Pole-Figure Methods for Surfaces Perpendicular to Rolling, Transverse and Normal Directions“. Textures and Microstructures 19, Nr. 1-2 (01.01.1992): 75–80. http://dx.doi.org/10.1155/tsm.19.75.

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Coefficients for a generalized-spherical-harmonic expansion of the crystallite orientation distribution function (ODF) through L=16 were obtained by an incomplete pole-figure method from a deep-drawing aluminum-killed sheet steel sample with surface perpendicular to the sheet-normal direction (ND). These coefficients were subsequently transformed from the RD, TD, ND reference frame to –ND, TD, RD and ND, RD, TD reference frames. Spherical-surface-harmonic expansions of incomplete {110}, {100}, and {112} pole-figures were calculated for each reference frame and used as input data to calculate ODF coefficients for each frame. The thus-calculated coefficients were transformed to the RD, TD, ND frame in each case. Series expansions of pole-figures and ODF for each frame are compared with the initial data.

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Freiße, Hannes, Adrian Ditsche und Thomas Seefeld. „Reducing adhesive wear in dry deep drawing of high-alloy steels by using MMC tool“. Manufacturing Review 6 (2019): 12. http://dx.doi.org/10.1051/mfreview/2019004.

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Sheet metal forming normally requires the application of lubricants to protect the tool and the sheet against wear. In the case of nonlubricated sheet metal forming, cleaning processes would not be necessary anymore and the process chain could be optimized regarding ecological and economical aspects. However, forming without lubrication leads to an intensive contact between the tool and the sheet. Thus, higher wear occurs and process reliability cannot be ensured for industrial mass production. For dry metal forming of high-alloy steels, a new tool concept must be developed to withstand the higher loads. In this work, a laser-generated tool surface with a supporting plateau of hard particles is presented. Spherical fused tungsten carbides were injected into the surface by laser melt injection. The metallic matrix of the composite was rejected by applying laser ablation. In consequence, the hard particles stood out of the matrix and were in direct contact with the sheet material. Dry and lubricated forming experiments were carried out by strip drawing with bending and deep drawing of cups. Within this work, the feasibility of dry metal forming of high-alloy steel could be demonstrated by applying the MMC surface whereby adhesive wear could be reduced.

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Raabe, Dierk, Franz Roters und Yan Wen Wang. „Simulation of Earing during Deep Drawing of bcc Steel by Use of a Texture Component Crystal Plasticity Finite Element Method“. Materials Science Forum 495-497 (September 2005): 1529–34. http://dx.doi.org/10.4028/www.scientific.net/msf.495-497.1529.

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We present a numerical study on the influence of crystallographic texture on the earing behavior of a low carbon steel during cup drawing. The simulations are conducted by using the texture component crystal plasticity finite element method which accounts for the full elastic-plastic anisotropy of the material and for the explicit incorporation of texture including texture update. Several important texture components that typically occur in commercial steel sheets were selected for the study. By assigning different spherical scatter widths to them the resulting ear profiles were calculated under consideration of texture evolution. The study reveals that 8, 6, or 4 ears can evolve during cup drawing depending on the starting texture. An increasing number of ears reduces the absolute ear height. The effect of the orientation scatter width (texture sharpness) on the sharpness of the ear profiles was also studied. It was observed that an increase in the orientation scatter of certain texture components entails a drop in ear sharpness while for others the effect is opposite.

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Idriss, Mohamad, Olivier Bartier, Gérard Mauvoisin, Charbel Moussa, Eddie Gazo Hanna und Xavier Hernot. „Determination of the Plastic Strain by Spherical Indentation of Uniaxially Deformed Sheet Metals“. Key Engineering Materials 651-653 (Juli 2015): 950–56. http://dx.doi.org/10.4028/www.scientific.net/kem.651-653.950.

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This work consists of determining the plastic strain value undergone by a material during a forming process using the instrumented indentation technique (IIT). A deep drawing steel DC01 is characterized using tensile, shear and indentation tests. The plastic strain value undergone by this steel during uniaxial tensile tests is determined by indentation. The results show that, the identification from IIT doesn’t lead to an accurate value of the plastic strain if the assumption that the hardening law follows Hollomon law is used. By using a F.E. method, it is shown that using a Voce hardening law improves significantly the identification of the hardening law of a pre-deformed material. Using this type of hardening law coupled to a methodology based on the IIT leads to an accurate determination of the hardening law of a pre-deformed material. Consequently, this will allow determining the plastic strain value and the springback elastic strain value of a material after a mechanical forming operation.

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Freiße, Hannes, und Thomas Seefeld. „Tool surface with a supporting plateau of hard particles for deep drawing of high alloy steel“. MATEC Web of Conferences 190 (2018): 14006. http://dx.doi.org/10.1051/matecconf/201819014006.

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Sheet metal forming normally requires the application of lubricants to protect the tool and the sheet against wear. The parts must be cleaned to remove the lubricants before joining and coating. This process step wastes energy and water resources. In the case of non-lubricated sheet metal forming, cleaning processes would not be necessary anymore and the process chain could be optimized regarding ecological and economical aspects. However, forming without lubrication leads to an intensive contact between the tool and the sheet. Thus, higher wear occurs and process reliability cannot be ensured for industrial mass production. High alloy steels are applied for mass-market products e.g. for appliances. Because of the higher strength, strain hardening and galling effects the austenitic steels are comparatively difficult to form. For dry metal forming of high alloy steels new tool concept must be developed to withstand the higher loads. In this work, a laser generated tool surface with a supporting plateau of hard particles (metal matrix composite (MMC-surface)) is presented. Spherical fused tungsten carbides were injected into the surface by laser melt injection. The metallic matrix of the composite was rejected by applying laser ablation. In consequence, the hard particles stood out of the matrix and were in direct contact with the sheet material. The surface of hard particles had a high hardness about 3000 HV and less metallic character. Cold working steel and aluminium bronze were tested as reference tool materials. Dry and lubricated forming experiments were carried out by strip drawing with bending and deep drawing of cups. Dry deep drawing of cups was not possible by using cold work tool steel. This can be traced back to the occurrence of wrinkles and cup base fracture at the same time. Applying aluminium bronze as tool material for dry metal forming resulted in high adhesive wear. Within this work the feasibility of dry metal forming of high alloy steel could be demonstrated by applying the MMC-surface whereby adhesive wear could be reduced.

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Yaghoubi, S., und F. Fereshteh-Saniee. „An investigation on the effects of the process parameters of hydro-mechanical deep drawing on manufacturing high-quality bimetallic spherical-conical cups“. International Journal of Advanced Manufacturing Technology 110, Nr. 7-8 (28.08.2020): 1805–18. http://dx.doi.org/10.1007/s00170-020-05985-5.

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Dissertationen zum Thema "Spherical 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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Konferenzberichte zum Thema "Spherical deep drawing"

Nepershin, Rostislav I., und Maksim A. Prusakov. „Half-spherical shell deep drawing“. In INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS (ICNAAM 2016). Author(s), 2017. http://dx.doi.org/10.1063/1.4992380.

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