An insight into neutral layer shifting in tube bending

H Li, J Ma, BY Liu, RJ Gu, GJ Li - International Journal of Machine Tools …, 2018 - Elsevier
Neutral layer shifting (NLS) is the most fundamental phenomenon during tube bending,
which characterizes tension-compression (TC) non-uniform bending deformation and …

Effect mechanism of torsion on flat oval profile free bending

Q Yang, C Liu, C Cheng, X Guo, J Tao, Z Ma - International Journal of …, 2023 - Elsevier
Six-axis free bending and twisting (6FBT) technology is suitable for the integral bending of
complex profiles with torsional characteristics for the cross-section. However, the influence …

Forming method and cross-section deformation of transition section of finned special-shaped tubes in 3D free bending technology

Z Zhang, J Wu, B Liu, W Wu, Z Yang, L Liu, M Wang… - Thin-Walled …, 2023 - Elsevier
In 3D free-bending technology, the bending forming of the tube consists of the transition
section and the stable forming section. However, because of the continuous movement of …

Investigation of defect behavior during the stamping of a thin-walled semicircular shell with bending angle

X Huang, B Guan, Y Zang, B Wang - Journal of Manufacturing Processes, 2023 - Elsevier
Springback, wrinkling, and thinning typically occur during the stamping of thin-walled
semicircular shells with bending angle. These defects cause poor forming accuracy of …

Improving prediction of springback in sheet metal forming using multilayer perceptron-based genetic algorithm

T Trzepieciński, HG Lemu - Materials, 2020 - mdpi.com
This paper presents the results of predictions of springback of cold-rolled anisotropic steel
sheets using an approach based on a multilayer perceptron-based artificial neural network …

Spatial variable curvature metallic tube bending springback numerical approximation prediction and compensation method considering cross-section distortion defect

Z Wang, Y Lin, L Qiu, S Zhang, D Fang, C He… - … International Journal of …, 2022 - Springer
With the advantages of continuous bending, small bending diameter, and variable curvature,
the spatial variable curvature (SVC) bent metallic tube (MT) is widely used in the aeronautics …

An analytical springback model for bending of welded tube considering the weld characteristics

M Zhan, L Xing, PF Gao, F Ma - International Journal of Mechanical …, 2019 - Elsevier
Predicting springback is important for improving the precision of tube bending forming.
Compared with a homogeneous tube, the springback of a welded tube is more complex …

A global springback compensation method for manufacturing metallic seal ring with complex cross-section and submillimeter precision

B Yan, B Meng, Y Zhu, Y Wang, M Wan - Journal of Materials Processing …, 2024 - Elsevier
The fabrication of complex thin-walled components with irregular cross-sectional geometries
often necessitates multi-pass forming processes. The springback phenomena at the …

An improved procedure for manufacture of 3D tubes with springback concerned in flexible bending process

WU Jianjun, Z Zhang - Chinese Journal of Aeronautics, 2021 - Elsevier
Abstract Three dimensional (3D) tubes, which possess the characteristics of space saving,
lightweight and high strength, are widely used in many high-end industries such as aviation …

[HTML][HTML] Mechanical analysis of finned special-shaped tubes in bending-torsional coupling deformation

Z Zhang, J Wu, B Liu, Z Yang, W Wu, L Liu, M Wang… - Materials & Design, 2023 - Elsevier
Because of the excellent thermal conductivity and increased strength, finned special-shaped
tube (FSST) is frequently utilized in a variety of industrial applications. However, duo to the …