Investigation of rolls size effects on hot ring rolling process by coupled thermo-mechanical 3D-FEA

Anjami, Nassir; Basti, Ali

doi:10.1016/j.jmatprotec.2010.03.026

Cited by 73 publications

(24 citation statements)

References 20 publications

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“…AA6061 alloy is widely used in industries for the production of critical ring components in aerocraft, high-speed rail, and automobile due to its superior properties such as highspecific strength, excellent corrosion resistance, and sound weldability [1][2][3], and the hot ring rolling (HRR) is an advanced incremental forming technique to fabricate aluminium ring components [4,5]. e thickness of the ring blank is gradually reduced with a progressively narrowing gap between the driving roll and idle roll during HRR, and the height of the ring is controlled by the axial rolls [6].…”

Section: Introductionmentioning

confidence: 99%

Study on Constitutive Characteristic of As-Cast AA6061 Alloy under Plane Strain Compression Based on Orthogonal Analysis

Qin

Kang

et al. 2019

Advances in Materials Science and Engineering

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Constitutive relationship and microstructure evolution of as-cast AA6061 alloy were studied using plane strain compression (PSC) under the temperature of 300–450°C, the strain rate of 0.01–5 s−1, and the strain of 0.9. It is found that the flow stress decreases with increasing temperature and decreasing strain rate. The dynamic recovery (DRV) and recrystallization (DRX) are found to easily occur by optical microscopic (OM) techniques. The softening mechanisms are mainly due to DRV that is accompanied by a slight DRX. Based on orthogonal analysis, the strain should be taken into account to derive the constitutive model accurately, and the interaction effect between the strain rate and temperature on the stress can be neglected when compared with the individual effect of the strain rate and temperature. The strain-compensated constitutive models based on orthogonal experiment are established, and the activation energy Q is found to be 158.465 kJ/mol. The correlation coefficient and the average absolute relative error between the experimental and the predicted results are 0.9946 and 4.2656%, respectively. The developed models can be used to predict the stress precisely at a wide range of strains, strain rates, and temperatures.

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Section: Introductionmentioning

confidence: 99%

Study on Constitutive Characteristic of As-Cast AA6061 Alloy under Plane Strain Compression Based on Orthogonal Analysis

Qin

Kang

et al. 2019

Advances in Materials Science and Engineering

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“…Seamless rings are mainly produced by the hot ring rolling (HRR) process, in which the specimen is subjected to repeated rolling deformation, resulting in simultaneous diameter expansion and wall thickness thinning [8,9]. The HRR process has been intensively investigated, either through experimental characterization in the early days [10][11][12] or based on computational simulation in the recent years [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Effects of hot ring rolling and aging treatment on microstructure and mechanical properties of AZ80-Ag alloy

Zhang

Gao

et al. 2015

Materials Science and Engineering: A

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“…Hua et al [18][19][20] presented a controlling method of passive rolls for thick-wall and deep-groove ring rolling and established an online measurement model. Basti et al [21] analyzed the size effects of forming rolls on strain and temperature distributions by 3D coupled thermomechanical FE simulation. Joun et al [22] applied a rigid-viscoplastic finite element method to investigate polygonal-shaped defects and developed an improved analysis model with relatively fine finite elements to reduce the computational time.…”

Section: Introductionmentioning

confidence: 99%

Effects of blank dimension on forming characteristics during conical-section ring rolling of Inco718 alloy

Zhu

Liu

et al. 2015

Int J Adv Manuf Technol

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For profile ring rolling of difficult-to-deform materials, geometry and dimensions of blank are critical for dimensional accuracy and thermomechanical parameters distribution of the formed ring. In this study, four blank design principles for conical-section ring rolling are presented based on analytical description of the volume distribution characteristic curve (VDCC), and then effects of all dimension factors of the four blanks are explored comprehensively by using 3D coupled thermomechanical FE model established based on FORGE. According to the comprehensive analysis, optimal blank design principle for conical-section ring rolling is determined. The results obtained show that: (1) Preparation stage of rolling process (PSRP) is an essential stage for slope forming without wall thickness reduction, and the essence of PSRP is the process that the metal in rolling cavity seeking for balanced pressure along axial direction. (2) Unequal slope and unequal wall thickness have obvious effects on stress distribution. (3) We can, through controlling local deformation in PSRP and shortening the time of PSRP, improve the strain and the temperature distribution.

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Investigation of rolls size effects on hot ring rolling process by coupled thermo-mechanical 3D-FEA

Cited by 73 publications

References 20 publications

Study on Constitutive Characteristic of As-Cast AA6061 Alloy under Plane Strain Compression Based on Orthogonal Analysis

Study on Constitutive Characteristic of As-Cast AA6061 Alloy under Plane Strain Compression Based on Orthogonal Analysis

Effects of hot ring rolling and aging treatment on microstructure and mechanical properties of AZ80-Ag alloy

Effects of blank dimension on forming characteristics during conical-section ring rolling of Inco718 alloy

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