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Materials
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Sheet/Bulk Metal Forming and Hybrid Components: Theory and Experiment
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Sheet/Bulk Metal Forming and Hybrid Components: Theory and Experiment

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Manufacturing Processes and Systems".

Deadline for manuscript submissions: closed (20 December 2023) | Viewed by 3794

Special Issue Editor

Prof. Dr. Sergei Alexandrov

E-Mail Website
Guest Editor
Ishlinsky Institute for Problems in Mechanics of the Russian Academy of Sciences, 101-1 Prospekt Vernadskogo, Moscow 119526, Russia
Interests: plasticity; fracture mechanics; structural design
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Today, the forming production of sheet metal and bulk components is a highly specialized and automated process. Science and industry work closely together to constantly establish new processes to be more productive and economic.

The change in forming technology due to the new challenges of globalization, sustainability, and the change in mobility can be addressed in this Special Issue. The worldwide challenges for production and forming technology in particular, due to the reasons mentioned above, are constantly driving researchers and industry to improve the existing processes.

Topics ranging from sheet and bulk metal forming to material characterization using theoretical and experimental methods can be addressed in this Special Issue.

Prof. Dr. Sergei Alexandrov
Guest Editor

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. Materials is an international peer-reviewed open access semimonthly 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 2600 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

  • sheet metal forming
  • bulk metal forming
  • hybrid components
  • design and tailored forming
  • deep drawing, stamping, rolling, and forging
  • welding and joining
  • microstructure and modelling
  • mechanical properties

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Published Papers (2 papers)

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Research

25 pages, 3882 KiB  
Article
General Planar Ideal Flow Solutions with No Symmetry Axis
by Sergei Alexandrov and Vyacheslav Mokryakov
Materials 2023, 16(23), 7378; https://doi.org/10.3390/ma16237378 - 27 Nov 2023
Viewed by 1706
Abstract
Bulk ideal flows constitute a wide class of solutions in plasticity theory. Ideal flow solutions concern inverse problems. In particular, the solution determines part of the boundary of a region where it is valid. Bulk planar ideal flows exist in the case of [...] Read more.
Bulk ideal flows constitute a wide class of solutions in plasticity theory. Ideal flow solutions concern inverse problems. In particular, the solution determines part of the boundary of a region where it is valid. Bulk planar ideal flows exist in the case of (i) isotropic rigid/plastic material obeying an arbitrary pressure-independent yield criterion and its associated flow rule and (ii) the double sliding and rotation model based on the Mohr–Coulomb yield criterion. In the latter case, the intrinsic spin must vanish. Both models are perfectly plastic, and the complete equation systems are hyperbolic. All available specific solutions for both models describe flows with a symmetry axis. The present paper aims at general solutions for flows with no symmetry axis. The general structure of the solutions consists of two rigid regions connected by a plastic region. The characteristic lines between the plastic and rigid regions must be straight, which partly dictates the general structure of the characteristic nets. The solutions employ Riemann’s method in regions where the characteristics of both families are curvilinear. Special solutions that do not have such regions are considered separately. In any case, the solutions are practically analytical. A numerical technique is only necessary to evaluate ordinary integrals. The solutions found determine the tool shapes that produce ideal flows. In addition, the distribution of pressure over the tool’s surface is calculated, which is important for predicting the wear of tools. Full article
(This article belongs to the Special Issue Sheet/Bulk Metal Forming and Hybrid Components: Theory and Experiment)
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16 pages, 7696 KiB  
Article
Wear Mechanisms of the Forging Tool Used in Pre-Forming in a Double Forging System of Truck Parts
by Janusz Krawczyk, Aneta Łukaszek-Sołek, Łukasz Lisiecki, Tomasz Śleboda and Marek Hawryluk
Materials 2023, 16(1), 351; https://doi.org/10.3390/ma16010351 - 30 Dec 2022
Cited by 1 | Viewed by 1614
Abstract
Tool life in plastic forming processes is a problem of the utmost importance as it significantly affects the cost of production. Hot forging with hammers and mechanical presses is an example of the technological process in which the load on tools is extremely [...] Read more.
Tool life in plastic forming processes is a problem of the utmost importance as it significantly affects the cost of production. Hot forging with hammers and mechanical presses is an example of the technological process in which the load on tools is extremely high and, consequently, the lifetime of tools is short. Considering, additionally, that this applies to large-scale production, from an economic point of view, the key issue will be to extend the tool life, make an accurate prediction of the number of parts that can be forged before the replacement of dies is necessary, and develop a system for quick tool changeover. Initially, however, it is necessary to understand the causes of excessive tool wear, which may lie in phenomena occurring at the level of microstructure. The aim of this article was to outline an example of the coexistence of multiple wear mechanisms in hot forging dies. For the modified chemical composition, the microstructure examinations were performed in selected areas of the tool. The research has revealed the causes of cracks in tools and some irregularities in the preparation of tools for production process. Full article
(This article belongs to the Special Issue Sheet/Bulk Metal Forming and Hybrid Components: Theory and Experiment)
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