Study on the shear-torsion deformation of rotary tube piercing process for nickel base superalloy

Zhang, Zhe; Liu, Dong; Li, Zhenfei; Zhang, Yangyang; Zhang, Runqiang; Yu, Yanlong; Pang, Yuhua; Wang, Jianguo

doi:10.1016/j.jmatprotec.2021.117153

Cited by 8 publications

(4 citation statements)

References 23 publications

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“…The axial force increases as the feed angle of the roller increases. On the one hand, the axial speed increases with the increase of the feed angle, and on the other hand, the unit compression amount increases with the increase of the roll feed angle [24]. Figure 2(a) shows the adjusting device of the left and upper rollers in the self-made piercing machine.…”

Section: Angular Relationship Between Connecting Rod Excursion and Ro...mentioning

confidence: 99%

Technology Optimization Analysis of Three-Roll Rotary Piercing Process for Seamless Steel Pipe

Liu,

Li,

Gui

et al. 2024

JOM

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A three-roll rotary piercing process (TRPP) with severe plastic deformation was conducted to fabricate stainless steel seamless tubes with high mechanical properties. To address production issues such as Front stuck (FS) -where the front end of the tube blank cannot be accessed, Back stuck (BS) -where the back end of the tube blank cannot be penetrated, and steelheaping, the process parameters were optimized through simulation and testing in this study. Additionally, a new structure for the three-roll piercing machine was designed and developed. The changes in roll feed angle and plug advance were systematically analyzed for defects in the tubular billet. Numerical simulations of the TRPP were performed using commercially available FEM software (Simufact Forming) to analyze the stress, strain, and temperature distributions in the pierced tubes. Experimental analysis was conducted on seamless tubes with different diameter defects, leading to the discovery of optimal rules. Based on the experimental and numerical investigations, it was found that optimizing plug advance and roll feed angle can enhance the forming quality of the tubes.

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Section: Angular Relationship Between Connecting Rod Excursion and Ro...mentioning

confidence: 99%

Technology Optimization Analysis of Three-Roll Rotary Piercing Process for Seamless Steel Pipe

Liu,

Li,

Gui

et al. 2024

JOM

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“…For instance, the amount of work done by 7-8 saws in cutting pipes can be completed in one shearing stamp. The replacement of pipe cutting on metal-cutting machines with shearing in stamps ensures a savings of 5-40% of metal, depending on the length of the work-pieces [17].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…The method of cutting by shearing in stamps with mandrel blades and the introduction of blade guides into the pipe hole have not found wide application due to the formation of burrs and protrusions on the ends of the workpiece [17].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Research on the new process of separating hollow work-piece by eccentric torsion cutting for stamping

Karnaukh,

Markov,

Lysenko

2024

FME Transactions

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This work aims to conduct theoretical and experimental studies on the energy and force parameters of the separation process, as well as the geometric accuracy of the separated tubular workpiece using the "eccentric twisting" method. A mathematical model of a device with a "crank-circular" mechanism for cutting pipes by "eccentric twisting" has been developed. The technological process of cutting pipes by "eccentric twisting" was simulated using the DEFORM-3D software package. The results of experimental studies are in good agreement with the theoretical data calculated using the proposed mathematical model and the specialized program DEFORM-3D. The maximum differences between the cutting torque values obtained theoretically and experimentally do not exceed 6%. For the industrial implementation of research results, a design of an installation with a wedge-hinged drive with a concave wedge in combination with a "crank-circular" mechanism for separating pipes by the "eccentric torsion" scheme is proposed.

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“…Regarding the review of two-high screw rolling research publications, it is worth noting articles connected with hollow shell microstructure formation under different deformation regimes [ 20 , 21 , 22 , 23 , 24 ]. Publications [ 25 , 26 ] are about the influence of the shape and dimensions of the plug on the accuracy of the hollow shell dimensions.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Hardness of Hollow Tube Shells at Piercing in Two-High Screw Rolling Mill with Different Plugs

et al. 2022

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AA6060 ingots were pierced in a two-high screw rolling mill (MISIS-130D) with guiding shoes (Mannesmann mill type). Three different plugs, i.e., a conventional entire plug, a plug with a cavity, and a hollow plug, were used for piercing. We established that the grain size decreases after piercing, by order of magnitude, compared to the initial non-pierced annealed bill, with a grain size of 100–400 μm, and the hollow shell grains are elongated along the piercing direction. The produced hollow shells had 30% higher hardness than the initial billet. The highest hardness values were obtained after piercing the conventional entire plug. The most uniform hardness distribution through the hollow shell’s volume was obtained after piercing the hollow plug. The cross and longitudinal section hardness measurements demonstrate that the hardness decreases from the outer surface to the inner surface of the hollow shells.

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Study on the shear-torsion deformation of rotary tube piercing process for nickel base superalloy

Cited by 8 publications

References 23 publications

Technology Optimization Analysis of Three-Roll Rotary Piercing Process for Seamless Steel Pipe

Technology Optimization Analysis of Three-Roll Rotary Piercing Process for Seamless Steel Pipe

Research on the new process of separating hollow work-piece by eccentric torsion cutting for stamping

Microstructure and Hardness of Hollow Tube Shells at Piercing in Two-High Screw Rolling Mill with Different Plugs

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