Experimental study and FEM analysis of redundant strains in flow forming of tubes

Mohebbi, Mohammad Sadegh; Akbarzadeh, Abdolhamid

doi:10.1016/j.jmatprotec.2009.09.028

Cited by 106 publications

(47 citation statements)

References 13 publications

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“…The widely used displacement feeding mode of stagger spinning, which is inconsistent with the actual production condition and with limits of low accuracy and efficiency, is replaced with the speed feeding mode (Mohebbi and Akbarzadeh, 2010), as shown in Fig. 5.…”

Section: Basic Parameter Settingmentioning

confidence: 99%

A study of 3D finite element modeling method for stagger spinning of thin-walled tube

Wang

et al. 2016

J. Zhejiang Univ. Sci. A

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Abstract:A modified 3D finite element (3D-FE) model is developed under the FE software environment of LS-DYNA based on characteristics of stagger spinning process and actual production conditions. Several important characteristics of the model are proposed, including full model, hexahedral element, speed boundary mode, full simulation, double-precision mode, and no-interference. Modeling procedures and key technologies are compared and summarized: speed mode is superior to displacement mode in simulation accuracy and stability; time truncation is an undesirable option for analysis of the distribution trend of time-history parameters to guarantee that the data has reached the stable state; double-precision mode is more suitable for stagger spinning simulation, as truncation error has obvious effects on the accuracy of results; interference phenomenon can lead to obvious oscillation and mutation simulation results and influence the reliability of simulation significantly. Then, based on the modified model, some improvements of current reported results of roller intervals have been made, which lead to higher accuracy and reliability in the simulation.

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Section: Basic Parameter Settingmentioning

confidence: 99%

A study of 3D finite element modeling method for stagger spinning of thin-walled tube

Wang

et al. 2016

J. Zhejiang Univ. Sci. A

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“…In the spin bonding process two surfaces to be bonded (inner surface of the external tube and outer surface of the internal one) were degreased in acetone and wire brushed as surface treatment. After scratch brushing, surface treated tubes were positioned against each other and fitted on the mandrel for tube spinning at room temperature with conditions of Table 2 ( Mohebbi & Akbarzadeh, 2010c). At this stage, while the tube and mandrel rotate about their axes, a roller with a degree of freedom about its own axis moves along the direction of the tube axis to reduce its thickness to 50% leading to bonding of the tubes.…”

Section: Alloymentioning

confidence: 99%

“…This is why the stress and strain have such a complicated distribution in this incremental process. There is always an inhomogeneous material flow due to the local deformation between the roller and the preform surface with a high strain rate (Mohebbi & Akbarzadeh, 2010b, 2010c, 2009b.…”

Section: Introductionmentioning

confidence: 99%

Nanostructure, Texture Evolution and Mechanical Properties of Aluminum Alloys Processed by Severe Plastic Deformation

Akbarzadeh¹

2011

Recent Trends in Processing and Degradation of Aluminium Alloys

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“…During metal plastic forming process, besides tension and compression deformation, shearing deformation also plays an important role in deformation such as microstructure evolution [6][7][8]. As a combination of two localized forming process, rolling-spinning forming process is a typical localized forming process.…”

Section: Introductionmentioning

confidence: 99%

“…Mohebbi and Akbarzadeh used Finite Element (FE) method to study the redundant strains in flow forming of tubes. Their results showed that the shearing deformation would bring redundant strains during flow forming process, and the magnitudes of shearing deformation would affect the dimension accuracy in flow forming of tubes [8]. These investigations in shearing deformation were only conducted in single forming process while for rolling-spinning process, which combines two different forming processes, shearing deformation would be different and needs to be further studied.…”

Section: Introductionmentioning

confidence: 99%

Analysis of shearing deformation in rolling-spinning forming of Ti-6Al-2Zr-1Mo-1V tubes

Guo

Zhan

Yang

2015

MATEC Web of Conferences

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Abstract. In this work, an analytical study of the macroscopic deformation and microstructure evolution of Ti-6Al-2Zr-1Mo-1V alloys during rolling-spinning forming process was performed by developing Finite Element (FE) modeling using the ABAQUS/Explicit platform. The developed FE model was validated by comparing with experimental results. To investigate the shearing deformation during rolling-spinning process, representative nodes were selected in the FE model. The shearing strains of these nodes were obtained by modeling. The influence of shearing deformation in rollingspinning forming process on microstructures was also analyzed. An optimal selection of process parameters was obtained to achieve better microstructure.

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Experimental study and FEM analysis of redundant strains in flow forming of tubes

Cited by 106 publications

References 13 publications

A study of 3D finite element modeling method for stagger spinning of thin-walled tube

A study of 3D finite element modeling method for stagger spinning of thin-walled tube

Nanostructure, Texture Evolution and Mechanical Properties of Aluminum Alloys Processed by Severe Plastic Deformation

Analysis of shearing deformation in rolling-spinning forming of Ti-6Al-2Zr-1Mo-1V tubes

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