Symmetry Problems in Metal Forming

A special issue of Symmetry (ISSN 2073-8994).

Deadline for manuscript submissions: 31 July 2025 | Viewed by 869

Special Issue Editors

1. Key Laboratory of Advanced Forging & Stamping Technology and Science, Ministry of Education of China, Yanshan University, Qinhuangdao 066004, China
2. Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK
Interests: materials processing; metal forming; material modeling; mechanical properties; pipe; finite element method; numerical simulation; bending springback
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Key Laboratory of Advanced Forging & Stamping Technology and Science, Yanshan University, Qinhuangdao 066004, China
Interests: metal forming

Special Issue Information

Dear Colleagues,

Symmetry and asymmetry both have their own forms of beauty. Symmetry and asymmetry exist widely in natural science and engineering applications, and metal forming is no exception. Metal forming is the technology of producing metal artworks, which are widely used in the aerospace, automobile, construction, and hardware industries, including for use in daily necessities, etc. In the metal forming process, there are many symmetry problems concerning material properties, boundary conditions, load loading, multi-field coupling, part structures, equipment, etc., which may directly affect the forming quality, cause defects of formed parts, or even fail to form. For example, material anisotropy, axisymmetric and non-axisymmetric parts, uneven deformation, straightening process, etc. The aim of the present Special Issue is to emphasize the phenomenon of symmetry/asymmetry in metal forming. Manuscript types include original research papers, reviews, and letters. The Special Issue will cover all aspects of metal forming processes and must be related to symmetry, including the following:

  • Manufacturing processes and equipment;
  • Materials behavior and characterization;
  • Modeling and simulation;
  • Deformation mechanics;
  • Microstructure design by forming;
  • Control and optimization.

Dr. Gaochao Yu
Prof. Dr. Rui Ma
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • metal forming
  • material modeling
  • numerical simulation

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

16 pages, 5637 KiB  
Article
Analysis of Symmetrical Three-Point Bending and Springback Process of Pipes
by Xiaokang Song, Jun Zhao, Rui Ma and Jian Li
Symmetry 2025, 17(1), 95; https://doi.org/10.3390/sym17010095 - 9 Jan 2025
Viewed by 691
Abstract
This study presents a theoretical analysis of the single-pressure straightening process for large-scale pipes, addressing the challenges of inadequate straightening precision and low efficiency associated with the current practice, which heavily relies on operator expertise. The straightening process of pipes through pressure is [...] Read more.
This study presents a theoretical analysis of the single-pressure straightening process for large-scale pipes, addressing the challenges of inadequate straightening precision and low efficiency associated with the current practice, which heavily relies on operator expertise. The straightening process of pipes through pressure is fundamentally a symmetrical three-point bending elastic–plastic deformation process. With the assumption of small deformations, the symmetric three-point bending of the pipe can be divided into two distinct deformation stages: fully elastic and elastic–plastic. For each stage, calculation models are developed, yielding the deflection formulae for any point on the pipe before and after unloading under varying punch strokes. The accuracy and reliability of the theoretical models are confirmed through finite element analysis and physical simulation experiments on smaller pipes. These models enhance the accuracy of single-pressure straightening and lay the groundwork for online material performance parameter identification based on load–stroke curves during the initial straightening phase. Both theoretical analysis and experimental outcomes demonstrate that the relationship between the maximum deflection after springback and the punch stroke are nearly linear, offering a practical method for developing intelligent control systems for pressure straightening. Full article
(This article belongs to the Special Issue Symmetry Problems in Metal Forming)
Show Figures

Figure 1

Back to TopTop