Finite Element Simulation for Hot Continuous-Rolled TC4 Alloy Seamless Pipe

Shi, Jiaxin; Yu, Wei; Dong, Entao; Wang, Jun

doi:10.1007/978-981-13-0107-0_67

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…The criterion is based on calculating the potential energy of plastic deformation, i.e. the area of the shape bounded by the strain -stress curve [12][13][14][15][16][17][18][19][20]. For fig.…”

Section: Analysis Of Results and Formulation Of Technical Recommendat...mentioning

confidence: 99%

Evaluation of the Effect of Holding the Mandrel in the Extreme Position of the FQM Mill on the Formation of Surface Defects

Toporov

Khalezov

Нухов

2021

SSP

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Modern continuous mills FQM are high-performance technological units that allow you to get products of a wide range. The paper presents the results of the study of the effect of the time of holding the mandrel in the extreme position of the continuous mill FQM (Fine Quality Mill) on the probability of defect formation of surface defects. The problems of сcomputational simulation of the process of continuous rolling of pipes were set and solved. It is established that the increase in the holding time of the mandrel allows to reduce the sliding of the metal on the surface of the tool, and contributes to a stable process of removing the mandrel without the formation of defects on the inner surface of the draft pipe. The results of solving the problems of сcomputational modeling allowed to formulate technical recommendations aimed at reducing the probability of surface defects in the production of pipes at the FQM mill.

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Section: Analysis Of Results and Formulation Of Technical Recommendat...mentioning

confidence: 99%

Evaluation of the Effect of Holding the Mandrel in the Extreme Position of the FQM Mill on the Formation of Surface Defects

Toporov

Khalezov

Нухов

2021

SSP

View full text Add to dashboard Cite

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“…Prior to the TCR process, the hollow billet is heated at a temperature of 800 °C, while the rollers and the mandrel are maintained at a constant room temperature of 20 °C. The heat transfer coefficient between tube and roll is 20 MW/(mm2•K), and the heat transfer coefficient of thermal convection and thermal radiation is 0.15 MW/(mm2•K) [22]. The heat conversion coefficient caused by friction and plastic deformation is 0.7 and 0.9, respectively [23,24].…”

Section: Establishment Of Boundary Conditionsmentioning

confidence: 99%

Research on the impact of mandrels in titanium tubes during tube continuous rolling

Li,

Shuang,

Chen

et al. 2023

Mater. Res. Express

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Tube continuous rolling (TCR) is a beneficial method for the production of titanium pipes due to its high efficiency and shorter process, with the mandrel playing a crucial role. In this study, the mechanism of the mandrel and its influence on the TCR process were investigated in detail through numerical simulations and experimental tests. The analysis included a detailed examination of metal slip, tension, stress-strain field, temperature field, metal flow, and microstructure evolution for various mandrel diameter coefficient. As the mandrel diameter coefficient increases, the grains at the groove vertex are elongated and recrystallized grains appear. At the same time, the quantity of twins at the groove taper initially increases and then decreases. Therefore, the deformation mechanism at the groove taper changes from twinning to slip.

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“…On this basis, the temperature, stress and strain field were extracted and analyzed. Shi et al [18] investigated the rolling process of TC4 alloy by thermal-mechanical coupling of the FE method. Ebrahimi et al [19] studied the influence of feed rate, mandrel revolution and thickness reduction on the surface quality of titanium seamless tubes.…”

Section: Introductionmentioning

confidence: 99%

Effect of Piercing Temperature on Stress—Strain Distribution and Dimensional Accuracy for Ti80 Titanium Alloy Seamless Tubes Based on Numerical Simulation

Zhou,

Fu,

et al. 2023

Metals

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Titanium alloy tubes were an ideal material to replace steel tubes. However, the relationship between piercing temperature and dimensional accuracy for titanium alloy seamless tubes was unclear. Therefore, the effects of piercing temperature on the stress—strain distribution and dimensional accuracy of Ti80 titanium alloy were studied using thermal simulation compression tests, finite element numerical analysis optimization and optical microscopy. Pierced at 1050 °C, Ti80 titanium alloy was cross-rolled and perforated to obtain a capillary tube, whose dimensional accuracy was better than that of those pierced at 850 °C and 950 °C. The microstructure of Ti80 seamless tubes was layered α-Ti, grain boundary β-Ti and a Widmannstatten structure. The tensile strength, yield strength and absorbed energy were 867 MPa, 692 MPa and 52 J, respectively.

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Finite Element Simulation for Hot Continuous-Rolled TC4 Alloy Seamless Pipe

Cited by 4 publications

References 10 publications

Evaluation of the Effect of Holding the Mandrel in the Extreme Position of the FQM Mill on the Formation of Surface Defects

Evaluation of the Effect of Holding the Mandrel in the Extreme Position of the FQM Mill on the Formation of Surface Defects

Research on the impact of mandrels in titanium tubes during tube continuous rolling

Effect of Piercing Temperature on Stress—Strain Distribution and Dimensional Accuracy for Ti80 Titanium Alloy Seamless Tubes Based on Numerical Simulation

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