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Готові списки джерел за темами / Aluminium alloys- Hydroforming

Добірка наукової літератури з теми "Aluminium alloys- Hydroforming"

Автор: Grafiati

Опубліковано: 6 вересня 2023

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Статті в журналах з теми "Aluminium alloys- Hydroforming"

1

Novotny, S., and P. Hein. "Hydroforming of sheet metal pairs from aluminium alloys." Journal of Materials Processing Technology 115, no. 1 (August 2001): 65–69. http://dx.doi.org/10.1016/s0924-0136(01)00766-x.

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2

Naeini, Hassan Moslemi, Golam Hosein Liaghat, S. J. Hashemi Ghiri, and S. M. H. Seyedkashi. "FE Simulation and Experimental Study of Tube Hydroforming Process for AA1050 Alloy at Various Temperatures." Advanced Materials Research 264-265 (June 2011): 96–101. http://dx.doi.org/10.4028/www.scientific.net/amr.264-265.96.

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Considering the necessity of using light weight, high strength and corrosion resistant materials, automotive and aerospace industries need to use advanced production technologies. Hydroforming has been regarded as one of the new technologies in forming of aluminium and magnesium alloys. These alloys have very low formability at room temperature which will be improved at elevated temperatures. In this paper, AA1050 aluminium alloy tube is numerically and experimentally investigated at different temperatures. Thickness distribution in forming zone is studied under different thermal conditions. Numerical results have been verified by experiments and there is a good agreement.

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3

Hojjati, M. H., M. Zoorabadi, and S. J. Hosseinipour. "Optimization of superplastic hydroforming process of Aluminium alloy 5083." Journal of Materials Processing Technology 205, no. 1-3 (August 2008): 482–88. http://dx.doi.org/10.1016/j.jmatprotec.2007.11.208.

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4

Michieletto, Francesco, Andrea Ghiotti, and Stefania Bruschi. "Novel Experimental Set-Up to Test Tubes Formability at Elevated Temperatures." Key Engineering Materials 611-612 (May 2014): 62–69. http://dx.doi.org/10.4028/www.scientific.net/kem.611-612.62.

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In the last ten years, the automotive sector presents large interest for light alloys tubes for structural and body car parts to reduce CO2 emissions. Tubes hydroforming is one of the most popular processes to obtain complex parts by using liquids as active part of the dies (i.e. water-or oil-based emulsions) with reduced costs of equipment and machines. However, when elevated temperatures should be used to increase the material formability, hydroforming processes are strongly limited due to the boiling point of liquids. The use of gas at elevated temperature in the so-called Hot Metal Gas Forming process (HMGF) has shown promising capabilities thanks to the increased formability and the possibility to form parts with lower pressures. The paper focuses on a novel experimental set-up to evaluate the tubes formability at high temperatures. Tubes are heated by electric current and air in pressure is used to form the material. Aluminium alloy AA6060 tubes specimens were used to test the experimental equipment and evaluate temperature and pressure ranges able to shape the material.

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5

Jansson, Mikael, Larsgunnar Nilsson, and Kjell Simonsson. "On strain localisation in tube hydroforming of aluminium extrusions." Journal of Materials Processing Technology 195, no. 1-3 (January 2008): 3–14. http://dx.doi.org/10.1016/j.jmatprotec.2007.05.040.

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6

Keigler, Michael, Herbert Bauer, David Harrison, and Anjali K. M. De Silva. "Enhancing the formability of aluminium components via temperature controlled hydroforming." Journal of Materials Processing Technology 167, no. 2-3 (August 2005): 363–70. http://dx.doi.org/10.1016/j.jmatprotec.2005.06.024.

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7

JIAO, Zhi-hui, Li-hui LANG, and Xiang-ni ZHAO. "5A06-O aluminium–magnesium alloy sheet warm hydroforming and optimization of process parameters." Transactions of Nonferrous Metals Society of China 31, no. 10 (October 2021): 2939–48. http://dx.doi.org/10.1016/s1003-6326(21)65704-7.

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8

Jansson, Mikael, Larsgunnar Nilsson, and Kjell Simonsson. "Tube hydroforming of aluminium extrusions using a conical die and extensive feeding." Journal of Materials Processing Technology 198, no. 1-3 (March 2008): 14–21. http://dx.doi.org/10.1016/j.jmatprotec.2007.09.043.

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9

Merklein, Marion, and Martin Grüner. "Mechanical Behaviour of Ceramic Beads Used as Medium for Hydroforming at Elevated Temperatures." Key Engineering Materials 410-411 (March 2009): 61–68. http://dx.doi.org/10.4028/www.scientific.net/kem.410-411.61.

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Анотація:

The need of light weight construction for high efficient vehicles leads to the use of new materials like aluminium and magnesium alloys or high strength and ultra high strength steels. At elevated temperatures the formability of steel increases as the flow stresses decrease. Forming high complex geometries like chassis components or components of the exhaust system of vehicles can be done by hydroforming. The hydroforming process by oils is limited to temperatures of approximately 300 °C and brings disadvantages of possible leakage and fouling. Using granular material like small ceramic beads as medium could be an approach for hydroforming of ultra high strength steels like MS W1200 and CP W800 at temperatures up to 600 °C. The material properties of granular material are in some points similar to solid bodies, in other points similar to liquids. For understanding and simulation of the behaviour of the medium a basic characterisation of ceramic beads with different ball diameters is necessary. Powder mechanics and soil engineering give ideas for experimental setups. For the conversion of these approaches on the one hand the behaviour of the ceramic beads itself has to be characterized, on the other hand the contact between a blank and the beads have to be investigated. For the tests three different kinds of spheres with a diameter between 63 microns and 850 microns are used. In unidirectional compression test compressibility, pressure distribution in compression direction and transversal compression direction and the effect of bead fracture are investigated. The tests are carried out at different compression velocities and for multiple compressions. For determination of friction coefficients between blank and beads and determination of shear stress in bulk under compression a modified Jenike-Shear-Cell for use in universal testing machines with the possibility of hydraulic compression of the beads is built up. The gained data can be used for material modelling in ABAQUS using Mohr-Coulomb or Drucker-Prager model.

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10

Lee, Myeong Han, Young Chul Shin, and Duk Jae Yoon. "Effect of Heat Treatment Conditions on Tube Hydroforming Characteristics of Aluminum Alloy." Key Engineering Materials 535-536 (January 2013): 275–78. http://dx.doi.org/10.4028/www.scientific.net/kem.535-536.275.

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Анотація:

Tube hydroforming is a metal forming technology that utilizes internal pressure and axial compressive loads to generate designed product shapes with complex sections from tubular materials. The tube hydroforming process has been used in the automotive, aircraft, and bicycle industries for many years. With the pursuit of lighter bicycles, aluminum alloys have been utilized as an alternative to steel. To obtain adequate strength, the aluminum alloys should undergo heat treatment processes before being used. However, the mechanical properties of the alloys vary with the tempering conditions. This paper aims to evaluate the effects of tube hydroforming characteristics on different kinds of tempered aluminum alloys. Based on numerical simulations, suitable tube hydroforming processing conditions for each tempered aluminum alloy are suggested.

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Більше джерел

Дисертації з теми "Aluminium alloys- Hydroforming"

1

Aue-u-lan, Yingyot. "Hydroforming of tubular materials at various temperatures." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1167627628.

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2

Constantine, Bruce A. (Bruce Andrew) 1975. "Tubular hydroforming of advanced steel and aluminum alloys : an economic evaluation using technical cost modeling." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/8457.

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Анотація:

Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2001.
Includes bibliographical references (leaves 124-126).
Tubular hydroforming is gaining importance in the automotive industry by enabling parts consolidation, weight reduction and performance enhancement. While current automotive applications use almost exclusively mild steel, other advanced steel and aluminum alloys are being discussed for use in the future. This thesis evaluates the economics of hydroforming three representative materials - mild steel, dual phase 600 steel and aluminum 5754 - using technical cost modeling. Costs are analyzed for the entire hyclroforming value stream, from coiled metal sheets to hydrofonned components, for both geometrically equivalent and functionally equivalent hydroformed components. Design conditions of constant load to failure and constant defection are used to derive functional equivalence. Results show that manufacturing costs are most sensitive to the maximum calibration pressure required for hydroforming. While the costs of processing aluminum components are less than those of functionally equivalent steel components, greater aluminum raw material costs of lead to greater total component costs compared to steel. Substitution of advanced materials is not as cost effective a weight reduction strategy as increasing section diameter and thinning walls of mild steel components, assuming no package constraints.
by Bruce A. Constantine.
S.M.

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3

Shah, Manan Kanti. "Material Characterization and Forming of Light Weight Alloys at Elevated Temperature." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1306939665.

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4

Feyissa, Fitsum Taye. "Hydroforming of cryorolled AA5083 alloy sheets." Thesis, 2018. http://eprint.iitd.ac.in:80//handle/2074/7962.

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5

Varma, N. Siva Prasad. "A Numerical Study Of Localized Necking During Forming Of Aluminium Alloy Tubes Using A Continuum Damage Model." Thesis, 2004. https://etd.iisc.ac.in/handle/2005/1238.

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6

Varma, N. Siva Prasad. "A Numerical Study Of Localized Necking During Forming Of Aluminium Alloy Tubes Using A Continuum Damage Model." Thesis, 2004. http://etd.iisc.ernet.in/handle/2005/1238.

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7

Modi, Bharatkumar A. "Investigations on formability of AA5182 aluminium alloy in hydroforming of square CUPS." Thesis, 2012. http://localhost:8080/iit/handle/2074/5317.

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8

Williams, Bruce W. "A Study of the Axial Crush Response of Hydroformed Aluminum Alloy Tubes." Thesis, 2007. http://hdl.handle.net/10012/3430.

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Анотація:

There exists considerable motivation to reduce vehicle weight through the adoption of lightweight materials, such as aluminum alloys, while maintaining energy absorption and component integrity under crash conditions. To this end, it is of particular interest to study the crash behaviour of lightweight tubular hydroformed structures to determine how the forming behaviour affects the axial crush response. Thus, the current research has studied the dynamic crush response of both non-hydroformed and hydroformed EN-AW 5018 and AA5754 aluminum alloy tubes using both experimental and numerical methods. Experiments were performed in which hydroforming process parameters were varied in a parametric fashion after which the crash response was measured. Experimental parameters included the tube thickness and the hydroformed corner radii of the tubes. Explicit dynamic finite element simulations of the hydroforming and crash events were carried out with particular attention to the transfer of forming history from the hydroforming simulations to the crash models. The results showed that increases in the strength of the material due to work hardening during hydroforming were beneficial in increasing energy absorption during crash. However, it was shown that thinning in the corners of the tube during hydroforming decreased the energy absorption capabilities during axial crush. Residual stresses resulting from hydroforming had little effect on the energy absorption characteristics during axial crush. The current research has shown that, in addition to capturing the forming history in the crash models, it is also important to account for effects of material non-linearity such as kinematic hardening, anisotropy, and strain-rate effects in the finite element models. A model combining a non-linear kinematic hardening model, the Johnson-Cook rate sensitive model, and the Yld2000-2d anisotropic model was developed and implemented in the finite element simulations. This combined model did not account for the effect of rotational hardening (plastic spin) due to plastic deformation. It is recommended that a combined constitutive model, such as the one described in this research, be utilized for the finite element study of materials that show sensitivity to the Bauschinger effect, strain-rate effects, and anisotropy.

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9

Oliveira, Dino. "Interaction Between Forming and the Crash Response of Aluminium Alloy S-Rails." Thesis, 2007. http://hdl.handle.net/10012/3124.

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One of the principal energy absorbing structural components that influences the crashworthiness of a vehicle is the side-rail, which is also commonly referred to as an s-rail due to its shape that is reminiscent of an “s”. To improve the crashworthiness of a vehicle, in the wake of significant environmental pressures requiring vehicle light-weighting, the parameters that govern the crash response of the s-rail and the implications of light-weight material substitution need to be better understood. In this work, the main parameters that govern the crash response of an s-rail and the variables that influence them were identified and assessed through a combined experimental and numerical modelling programme. In particular, the as-formed properties of aluminium alloy s-rails, due to the tube bending and hydroforming fabrication route were examined. Tube bending, hydroforming and crash experiments were conducted to examine and assess the effects of initial tube thickness, strength, geometry, bend severity, work hardening, thickness changes and residual stresses on the crash response of the s-rail. The forming process variables, springback, thickness, strains, and force and energy response measured in the experiments were used to validate the finite element models developed herein. The validated numerical models of tube bending, hydroforming and crash provided additional insight and also allowed further investigation of the parameters governing the crash response of s-rails. The relevant parameters governing the crash response of s-rails were isolated and the basis for a set of design guidelines, in terms of maximizing energy absorption or minimizing mass, was established. The overall size is the most influential design parameter affecting the energy absorption capability of the s-rail, followed by the initial thickness, material strength, cross-sectional geometry, bend severity and hydroforming process employed, and finally boost in bending. The most significant conclusion made based on this research is that the effects of forming history must be considered to accurately predict the crash response of the s-rail. There are additional conclusions with respect to the tube bending and hydroforming processes, as well as s-rail crash response, that will contribute to improving the design of s-rails for better crashworthiness of vehicles.

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Частини книг з теми "Aluminium alloys- Hydroforming"

1

Selvakumar, A. S., B. Surya Rajan, M. A. Sai Balaji, and B. Selvaraj. "Strain Analysis of AA6063 Aluminum Alloy by Tube Hydroforming Process." In Lecture Notes in Mechanical Engineering, 13–21. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1724-8_2.

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2

Jiang, Peicheng, Lihui Lang, and Sergei Alexandrov. "Research on Springback of 5A02 Aluminum Alloy Considering Thickness Normal Stress in Hydroforming." In Structural Integrity, 151–57. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47883-4_26.

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3

Liu, Zhimin, Xialing Wu, Dongsheng Zhang, Yi Ding, Liyan Gao, and Xiang Yan. "Improvement of Formability of Y-Shaped Tubular Part of 6016 Aluminium Alloy by Pulsating Hydroforming." In Lecture Notes in Electrical Engineering, 221–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-45043-7_24.

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4

Luo, A., and A. Sachdev. "Bending and hydroforming of aluminum and magnesium alloy tubes." In Hydroforming for Advanced Manufacturing. CRC Press, 2008. http://dx.doi.org/10.1201/9781439832998.ch11.

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5

Luo, A. A., and A. K. Sachdev. "Bending and hydroforming of aluminum and magnesium alloy tubes." In Hydroforming for Advanced Manufacturing, 238–66. Elsevier, 2008. http://dx.doi.org/10.1533/9781845694418.2.238.

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Тези доповідей конференцій з теми "Aluminium alloys- Hydroforming"

1

Gholipour, J., M. J. Worswick, and D. Oliveira. "Application of Damage Models in Bending and Hydroforming of Aluminum Alloy Tube." In SAE 2004 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2004. http://dx.doi.org/10.4271/2004-01-0835.

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2

Palumbo, G., A. Piccininni, P. Guglielmi, V. Piglionico, L. D. Scintilla, D. Sorgente, and L. Tricarico. "Numerical/experimental investigations about the warm hydroforming of an aluminum alloy component." In THE 11TH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN INDUSTRIAL FORMING PROCESSES: NUMIFORM 2013. AIP, 2013. http://dx.doi.org/10.1063/1.4806817.

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3

Reblitz, J. "Evaluation of the properties of AA7020 tubes generated by a heat treatment based hydroforming process." In Sheet Metal 2023. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902417-28.

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Анотація:

Abstract. Energy efficiency and sustainability are getting more and more relevant in society and industry. Especially energy-intensive sectors offer a high potential for power savings. Thus, different lightweight strategies are applied in the automotive sector. In this context, high strength profile components are used as crash structures. As an example, these profiles are deployed to protect the battery of electrically powered vehicles. Therefore, high strength aluminum alloys of the 7xxx series are suitable for compensating the high battery weight partly. Compared to steel, this material is characterized by a high strength-to-weight ratio as well as an increased thermal conductivity. However, one challenge in forming high strength aluminum alloys is the limited formability at room temperature. For this purpose, heat treatment based process routes for tube hydroforming are investigated within this research work. By the combination of W-temper forming and hydroforming complex part geometries can be generated. A subsequent artificial ageing process realizes the required high strength of the profiles. Using AA7020 tubes, the properties of a demonstrator geometry are compared to the initial state T6 of the semi-finished parts. For this purpose, the wall thickness distribution and the grain structure are evaluated. Thereby, the influence of forming and heat treatment on the geometrical and microstructural properties is to be analyzed. For the evaluation of the achievable hardening of the aluminum alloy, the mechanical properties are investigated by tensile tests. This investigations provide an assessment of the process route under industry-related conditions.

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4

Neugebauer, Reimund, Michael Seifert, Petr Kurka, and Andreas Sterzing. "Demands on Tool and Machine Design for Temperature Supported Hydroforming of Magnesium and Aluminum Alloys." In SAE 2006 Commercial Vehicle Engineering Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2006. http://dx.doi.org/10.4271/2006-01-3579.

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5

Gholipour, J. "Severity of the Bend and Its Effect on the Subsequent Hydroforming Process for Aluminum Alloy Tube." In MATERIALS PROCESSING AND DESIGN: Modeling, Simulation and Applications - NUMIFORM 2004 - Proceedings of the 8th International Conference on Numerical Methods in Industrial Forming Processes. AIP, 2004. http://dx.doi.org/10.1063/1.1766673.

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6

Koç, M., S. Mahabunphachai, J. E. Carsley, F. Barlat, Y. H. Moon, and M. G. Lee. "Numerical and Experimental Investigations on Deformation Behavior of Aluminum 5754 Sheet Alloy under Warm Hydroforming Conditions." In NUMIFORM 2010: Proceedings of the 10th International Conference on Numerical Methods in Industrial Forming Processes Dedicated to Professor O. C. Zienkiewicz (1921–2009). AIP, 2010. http://dx.doi.org/10.1063/1.3457503.

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7

Strano, Matteo. "Metal Foam Filled Hydroformed Tubes: Production and FEM Simulation." In ASME 2010 International Manufacturing Science and Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/msec2010-34210.

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Анотація:

The marriage of the Tube HydroForming (THF) process with metal foams is interesting for different reasons: a) THF parts are naturally suited as cases to be filled by an internal metallic foam reinforcement and therefore for structural applications; b) the possibility to increase the mechanical strength of hydroformed parts allows to plan the THF process more freely and flexibly. These components, made of an outer hollow thin compact metal skin and a cellular lightweight core may find several applications in different industrial fields. In order to allow for an efficient and effective product/process design with a concurrent engineering approach, the structural performance of these composite parts must be predicted by means of FEM calculation. The optimal combination of tube and metal foam properties must be found. While FEM simulation of bending and hydroforming is state of the art, the accurate FEM simulation of the mechanical behavior of metal foams cannot be considered fully established. In the first part of this paper the foam-filling production cycle of a simple hydroformed aluminum part is shown, in order to discuss some of the design and manufacturing issues that can be faced in FEM based product/process analysis, concerning the thermal effects on the tube materials, the ability of completely filling the tube, the foam/tube interface conditions, the uniformity of cell distribution. A few potential applications of foam-filled hydroformed tubes are also presented. In the second part of the paper, the common methods and formulations for FEM simulation of foam based structures are discussed, and a new and very promising method is proposed.

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8

Weddeling, C., S. Gies, N. Ben Khalifa, and A. Erman Tekkaya. "Analytical Methodology for the Process and Joint Design of Form-Fit Joining by Die-Less Hydroforming." In ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/msec2014-3955.

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Анотація:

In modern lightweight concepts, for example in automotive engineering, structures are increasingly composed of several dissimilar materials. Due to the different material properties of the joining partners, conventional and widely used joining techniques often reach their technological limits when applied in the manufacturing of such multi-material structures. This leads to an increasing demand for appropriate joining technologies, like joining by die-less hydroforming (DHF) for connecting tubular workpieces. The present work introduces an analytical model to determine the achievable joint strength of this connection type. This approach, taking into account the material parameters as well as the groove and tube geometry, is based on a membrane analysis with constant wall thickness. Additionally, bending stresses and friction are considered locally. Besides a fundamental understanding of the load transfer mechanism, this analytic approach allows a reliable joining zone design. To validate the model, experimental investigations using aluminum specimens were performed.

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9

Landgrebe, Dirk, and Frank Schieck. "Hot Gas Forming for Advanced Tubular Automobile Components: Opportunities and Challenges." In ASME 2015 International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/msec2015-9204.

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Анотація:

Today most industrial sectors are faced with several challenges such as the reduction of CO2 emission, the shortage of resources and the increasing individualization of products. This situation particularly appears in the automotive industry. To reduce CO2 emission of cars there is no alternative to decreasing weight. Advanced lightweight design implies new materials, innovative component design and finally new production methods. Based on this not only the CO2 emission during the operation phase becomes a focus, also the manufacturing process becomes more and more important. Following upcoming requests for lightweight materials, new design principles and energy and resource efficient production processes, conventional forming technologies are reaching their limits. By including temperature as an active temperature parameter into the production process, advanced final component properties are possible, forming limits can be extended and process chains can be shortened. This is valid particularly for hydroforming. Advantages and disadvantages of this technology are well known, and today there are a few typical automotive components in series production. Compared to a blank half shell design of car components, hydroformed profiles allow a flangeless design, the reduction of individual parts in a component and an excellent degree of material utilization. To implement high temperatures into this technology, alternative heat-resistant forming media are mandatory. The substitution of water by nitrogen increases the thermal process limits up to 1,000°C, but this also requires new systems engineering. This paper gives an overview on the development of hot gas forming technology and illustrates prospects and limits by means of automotive-related parts for metallic lightweight materials such as ultra-high strength and stainless steel, Aluminum or Magnesium. Beside the determination of temperature-related material characteristics, the research focused on process and tool design based on thermo-mechanically coupled FE simulation. The consecutive manufacturing of prototyping parts allows the validation of simulation results and assesses the prospects to shorten existing process chains in the future.

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