Optimization of spinning parameters of 20/316L bimetal composite tube based on orthogonal test

Wei, Xu; Yang, Yingying; Dai, Chenwei; Xie, Jingang

doi:10.1515/secm-2020-0026

Cited by 6 publications

(6 citation statements)

References 18 publications

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“…The numerical simulation and experiment were carried out according to my previous research work [16].…”

Section: Finite Element Analysis and Experimental Verificationmentioning

confidence: 99%

“…The spin forming parameters of bimetallic composite pipe were optimized by FEM and experiment in my previous research, and the torque and the residual contact pressure were analyzed during forming process. The orthogonal test of four factors and five levels was used to gain the optimal spinning parameters and the effects of factors on analysis indicators under the condition of maximum residual contact pressure and small torque [16]. The bimetallic pipe was manufactured by internal spinning forming technology and via different theories of elastoplastic mechanics were analyzed.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical analysis of 20/316L bimetal composite pipe formed by spinning

Wei

2022

SN Appl. Sci.

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Bimetal composite pipe are widely used in petrochemical industry and other industries due to its good mechanical properties and corrosion resistance. In this paper, the minimum radial rotary pressure (Pimin) and maximum radial rotary pressure (Pimax) were obtained by theoretical mechanical calculation, so as to optimize the design of the spinning device. The residual contact pressure was acquired to evaluate the forming quality of the composite pipe. It was found that when the spinning parameters (δ = 0.16 mm, ψ = 0.4 mm, β = 3.0° and f = 0.5), the maximum residual contact pressure was obtained, and the simulated and experimental values were 9.19 MPa and 9.01 MPa, respectively. They were close to the theoretical value (9.67 MPa), and the error of these values was about 9%, which proved the accuracy of the theoretical analysis.

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“…The numerical simulation and experiment were carried out according to my previous research work [16].…”

Section: Finite Element Analysis and Experimental Verificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical analysis of 20/316L bimetal composite pipe formed by spinning

Wei

2022

SN Appl. Sci.

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“…Table 1 lists the dimensions of the welded pipe and roller. The density, elastic modulus, and Poisson's ratio of the welded pipe are 7.8 kg m −3 , 1.71×10 5 MPa, and 0.3, respectively. The material properties were modeled considering the Johnson-Cook damage parameters [22].…”

Section: Simulation Of Spinning Process 21 Spinning Modelmentioning

confidence: 99%

“…This technology can be used to easily manufacture all types of thin-walled rotating parts and pipe parts. Further, it is widely used in national defense, machinery, automobile industry, and other fields because of its good forming quality, excellent performance, and low manufacturing cost [4][5][6]. Ternary catalyst shells are a typical thinwalled rotating part.…”

Section: Introductionmentioning

confidence: 99%

Spinning process optimization and microstructure of stainless-steel welded pipe

Fengde¹,

Zhang²,

Fang³

et al. 2022

Mater. Res. Express

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Defects, such as cracks, typically occur in the spinning process of ternary catalyst shells. This study investigates the optimization of spinning process parameters to prevent such defects. An orthogonal simulation is performed using a finite element model of the spinning process of a ternary catalyst shell. The simulation results are verified by performing spinning tests using a 439 stainless steel welded pipe. The microstructure, hardness, and quality of formed parts are analyzed. The simulation and test results demonstrate that when the spinning temperature is 1000 °C, the roller fillet radius, roller speed, and feed ratio are 5 mm, 40 r/s, and 1.2 mm/r, respectively. In addition, the error rates of the forming thickness, port diameter, and roundness error are 1.37%, 1.25%, and 4.8%, respectively. This verifies the accuracy of the simulation. No defects are generated during spinning, and the spinning quality is high. The feed ratio is the main factor that affects the roundness error, followed by the roller speed. As deformation increases, hardness increases and the crystal size decreases. The results of this study can provide important theoretical guidance for practical spinning applications.

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“…R X is the extreme difference under the X factor, which reflects the magnitude of the influence of various factors on the test results. The influence of each factor on the outlet velocity of curved‐tube nozzles can be ensured by the size of the range R X value, and the better level of each factor can be ensured according to the size of the K X i value, so as to determine the optimal level combination 36 . The formula of K X i and R X can be written as follows:

K_{Xi} = ((), V_{italicXi 1} + V_{italicXi 2} + V_{italicXi 3} + V_{italicXi 4}) / 4

R_{X} = \max ((),,,, K_{X 1}, K_{X 2}, K_{X 3}, K_{X 4}) - \min ((),,,, K_{X 1}, K_{X 2}, K_{X 3}, K_{X 4})

where V Xi is the outlet velocity of factor X at the i level.…”

Section: Orthogonal Test Analysis Of Curved‐tube Nozzlementioning

confidence: 99%

Research on rotary nozzle structure and flow field of the spinneret for centrifugal spinning

Lai

Wang

Liu

et al. 2021

J of Applied Polymer Sci

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High-speed centrifugal spinning is a novel method of fabricating nanofibers by use of centrifugal force field. The neoteric designs and proper structural parameters of spinning nozzle will change the outlet velocity and velocity distribution uniformity of spinning solution, which could affect the quality of nanofibers. Four different spinning nozzles that can be used for high-speed centrifugal spinning are proposed. The flow of spinning solution in the different rotary nozzles is simulated based on the theoretical analysis. It can be found that the curved-tube nozzle is better for high-speed centrifugal spinning comparing with the velocity distribution of spinning solution in the four different spinning nozzles. The influence degree of the structure parameters of the curved-tube nozzle on the solution outlet-velocity is explored by orthogonal test method. The result shows that the curved-tube nozzle with an inlet diameter of 10 mm, conical transition pipe length of 3 mm, nozzle outlet diameter of 0.8 mm, curvature radius of 4 mm, and central angle of curved tube of 30 , can effectively enhance the outlet velocity of spinning solution. Finally, it is proved by centrifugal spinning experiment that the curved-tube nozzle after optimization can improve the morphology and quality of nanofibers.

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Optimization of spinning parameters of 20/316L bimetal composite tube based on orthogonal test

Cited by 6 publications

References 18 publications

Mechanical analysis of 20/316L bimetal composite pipe formed by spinning

Mechanical analysis of 20/316L bimetal composite pipe formed by spinning

Spinning process optimization and microstructure of stainless-steel welded pipe

Research on rotary nozzle structure and flow field of the spinneret for centrifugal spinning

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