Joining by forming – A selective review

Weber, Frank; Gebhard, J. W.; Gitschel, Robin; Goyal, Siddhant Prakash; Kamaliev, Mike; Wernicke, Sebastian; Tekkaya, A. Erman

doi:10.1016/j.jajp.2021.100054

Cited by 9 publications

(3 citation statements)

References 58 publications

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“…During the fitting process, external loads are transferred through the press ring, the shaped ridges are compressed on the sealing surface of the pipe and partially press into the pipe surface, creating a form-fit [31] sealing condition. The geometries can be idealized as 2D axisymmetric thin-walled cylinders [32] and the membrane theory of symmetrically loaded cylinders based on Kirchhoff's hypothesis [33] is applicable.…”

Section: Analytical Model Of the Fitting Processmentioning

confidence: 99%

A Semi-Analytical Method for the Sealing Performance Prediction of Subsea Pipeline Compression Connector

Wang

Yao

et al. 2023

JMSE

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To predict the sealing performance of the subsea pipeline compression connector, a semi-analytical method is proposed and verified. The leakage condition is obtained as a function of the minimum radial deflection. The semi-analytical method consists of three parts: a macroscopic analytical model for the interference process deduced based on the membrane theory, a mesoscopic two-dimensional finite element analysis of the internally turned sealing surface according to scanning electron microscope observation, and a formulation of the leakage ratio according to the Abbott–Firestone curve. The influences of the geometry parameters are analyzed. The prediction and identification of the leakage condition near the minimum preloaded deflection are investigated. Experimental tests are also carried out to verify the proposed method. The results show that, within five times the pipeline threshold of the thin wall thickness, compression connectors designed by the proposed method can create a reliable seal with a rough internally turned surface, saving 57% of the design time while reducing the machining time and costs.

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Section: Analytical Model Of the Fitting Processmentioning

confidence: 99%

A Semi-Analytical Method for the Sealing Performance Prediction of Subsea Pipeline Compression Connector

Wang

Yao

et al. 2023

JMSE

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“…There are many advantages of the joining-by-forming process, such as high joint strength, simple structure, low cost, high productivity, and wide applicability. It has great prospects in the field of manufacturing, which is especially suitable for the joining between dissimilar materials [9,10]. Traditional joining-by-forming processes include clinching, hemming, riveting, extrusion, forging, hydroforming, rolling, swaging, and spinning [11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Study on Joining for Thin-Walled Aluminum Alloy/Steel Tubes by Electromagnetic Flanging Process

Chen,

Zhao,

Wang

et al. 2023

Metals

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A structure for joining thin-walled 6061-T6 aluminum alloy tube (outer tube) and Q195 steel tube (inner tube) by electromagnetic flanging process was proposed. The formation process, mechanical properties, failure modes, and morphology of the joint were investigated. The results showed that the outer tube impacted the inner tube, the flanges of the prefabricated holes on the outer tube were embedded into the prefabricated holes of the inner tube under the action of Lorentz force, and thus the mechanical locking joint was obtained. There were two tensile failure modes for the joints: Pull-out and fracture. Specifically, when the discharge energy was relatively high, the failure mode changed from pull-out to fracture. Combining the results of tensile tests and morphology observations, the maximum loads of the joints increased with the discharge energy. However, excessive discharge energy would lead to the brittle fracture of the inner tube, which was not beneficial to the service. Better discharge energy and the maximum load of the joint at this discharge energy were obtained.

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“…However, a method of joining by plastic deformation presents great potential to improve reliability of the connection components. Up to now, as an important method of manufacturing lightweight and environmentally friendly components, tubes joining techniques by local plastic deformation have wide application in modern industry, such as aerospace industry, power system, petrochemical engineering and transportation [1,2]. Titanium alloy tubes, as a kind of lightweight material with high strength-to-weight ratio, are widely used in the manufacturing of aircraft tubular components.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of Tubular Form-Fit Joint Forming by Internal Rolling

Duan

Jin

et al. 2022

Advances in Transdisciplinary Engineering

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A method of tube joining by plastic deformation has efficient, reliable and environmentally friendly features, so that it is widely applied into the fabrication of aviation pipeline. Internal rolling has potential to join high strength titanium alloy tubes withstanding high pressure medium with better sealing performance. Taking TA18 titanium alloy tubes as the case material, this presentation combines numerical modelling with experiments to describe the deformation behavior of joining by rolling process. The distribution of the residual contact stress and plastic strain was analyzed by partitioning the deformation regions of the tube. Finally, it is concluded that a robust and accurate FE model of Internal rolling can be obtained.

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Joining by forming – A selective review

Cited by 9 publications

References 58 publications

A Semi-Analytical Method for the Sealing Performance Prediction of Subsea Pipeline Compression Connector

A Semi-Analytical Method for the Sealing Performance Prediction of Subsea Pipeline Compression Connector

Study on Joining for Thin-Walled Aluminum Alloy/Steel Tubes by Electromagnetic Flanging Process

Modeling and Simulation of Tubular Form-Fit Joint Forming by Internal Rolling

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