materials-logo

Journal Browser

Journal Browser

Tribology in Materials Processing

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 September 2023) | Viewed by 6257

Special Issue Editors


E-Mail Website
Guest Editor
College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Interests: tribology in materials processing; friction and wear; lubrication technology; microforming; advanced rolling; materials processing
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
Interests: numerical simulation of metal forming; tribology in metal forming; multi-scale materials processing; advanced rolling technology; microforming; manufacturing of composites; contact mechanics; friction and wear in manufacturing; lubrication technology; development of novel lubricants
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Materials processing is a vital step to turning raw materials into finished products with specified features needed for the products to perform well in their intended applications. In most cases of materials processing, physical contact occurs between the tool or processing machinery and the processed materials, during which tribological issues, such as friction and wear, will be induced. The generation of friction and wear is usually a hindrance to materials processing and may result in a series of problems, including damage to tools, performance deterioration of the processed materials, quality grade degradation of the finished goods, and increased energy consumption. Therefore, it is very important to monitor the tribological behavior involved in materials processing with the purposes of improving the processing efficiency and fabricating high-quality products with excellent performance.

This Special Issue deals with the tribology issues associated with materials processing, especially those relating to the design, friction, wear, and lubrication of interacting surfaces in materials processing. Research papers, review articles, and communications relating to the theory, simulation, and practice of friction, wear, lubrication, surface treatment, and all other aspects relating to the tribology in materials processing are invited to this Special Issue.

Prof. Dr. Jingwei Zhao
Prof. Dr. Zhengyi Jiang
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. 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

  • tribology
  • friction
  • wear
  • lubrication
  • surface engineering
  • surface treatment
  • coating
  • film
  • surface topography
  • surface metrology
  • surface quality
  • materials processing
  • forming
  • machining
  • manufacturing
  • contact mechanics

Published Papers (4 papers)

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

Research

15 pages, 15793 KiB  
Article
Analysis of the Effectiveness of Technological Lubricants with the Addition of Boric Acid in Sheet Metal Forming
by Janina Adamus, Wojciech Więckowski and Piotr Lacki
Materials 2023, 16(14), 5125; https://doi.org/10.3390/ma16145125 - 20 Jul 2023
Cited by 4 | Viewed by 920
Abstract
One of the main problems during sheet metal forming is the reduction in coefficient of friction and separation of contact surfaces in order to eliminate buildups of the formed material on the forming tools. For this purpose, technological lubricants based on mineral or [...] Read more.
One of the main problems during sheet metal forming is the reduction in coefficient of friction and separation of contact surfaces in order to eliminate buildups of the formed material on the forming tools. For this purpose, technological lubricants based on mineral or synthetic oils are usually used. Unfortunately, their removal from the drawn parts and their subsequent utilization pose many problems and are expensive. Environmentally benign lubricants based on vegetable oils with the addition of boric acid could be an effective alternative to lubricants based on mineral and synthetic oils; however, the solubility of boric acid in oils is limited. Therefore, the paper proposes new, effective, and environmentally friendly methods for applying boric acid to the metal sheet by spraying it on a thin rapeseed oil layer previously applied to the metal sheet or by spraying a 25% solution of boric acid in methyl alcohol onto the sheet. The effectiveness of such lubrication was assessed on the basis of the so-called strip drawing test, Erichsen cupping test, and formation of cylindrical drawn parts in industrial conditions. The tests showed that the addition of boric acid was most effective for forming the DC01 steel sheet, reducing the coefficient of friction by about 60% compared to base oil lubrication. Although its usefulness is lower in the case of other frictional pairs, it eliminates the phenomenon of the formed material sticking to the tool, thus extending the life of the forming tools. The use of the proposed solution reduces production costs and indirectly boosts environmental protection. Moreover, an explanation of the tribological mechanism contributing to the lubrication action of boric acid is given. Full article
(This article belongs to the Special Issue Tribology in Materials Processing)
Show Figures

Figure 1

26 pages, 8689 KiB  
Article
Analysis of Particle Size and Concentration in Die Sinking Electric Discharge Machining
by Ata ur Rehman, Waseem Arif, Muhammad Imtiaz Hussain, Sajjad Miran, Salman Hussain and Gwi Hyun Lee
Materials 2022, 15(14), 4932; https://doi.org/10.3390/ma15144932 - 15 Jul 2022
Cited by 6 | Viewed by 1378
Abstract
Electric discharge machining with a powder mix dielectric is a promising technique to harden a work piece’s surface using electricity with a high energy density. The quality of the electrical discharge-machined surface is related to its surface integrity in which the surface’s roughness, [...] Read more.
Electric discharge machining with a powder mix dielectric is a promising technique to harden a work piece’s surface using electricity with a high energy density. The quality of the electrical discharge-machined surface is related to its surface integrity in which the surface’s roughness, residual stresses, micro hardness and surface micro cracks are some of the major factors. In this research, graphite powder was mixed in a dielectric with a particle size of 20 µm, 30 µm, and 40 µm, with the concentration of the graphite powder ranging from 2 g/L to 4 g/L. Moreover, the peak current and pulse time on were also coupled with an additive of graphite powder to investigate the effect on the surface quality, i.e., the recast layer thickness, micro hardness and crater depth as well as the material removal rate (MRR) and tool wear rate (TWR). A Box–Behnken design was employed to design the experiments and the experimental results revealed that the graphite powder size and concentration coupled with the electrical parameters (peak current and pulse time on) significantly influenced the recast layer thickness, micro hardness, crater size, MRR and TWR. The crater depth and micro hardness were maximized at a higher concentration and particle size, while the recast layer thickness was reduced with a higher gain size. Full article
(This article belongs to the Special Issue Tribology in Materials Processing)
Show Figures

Figure 1

12 pages, 2843 KiB  
Article
Experimental Study on the High Temperature Impact Torsional Behavior of Ti-1023 Alloy
by Lintao Li, Zhihua Wang and Wei Ma
Materials 2022, 15(11), 3847; https://doi.org/10.3390/ma15113847 - 27 May 2022
Cited by 1 | Viewed by 1282
Abstract
Based on the modified Hopkinson torsion bar, a high-temperature dynamic shear test method was proposed for the Ti-1023 alloy, and the microstructural evolution of the tested material at different temperatures was studied. By using the modified high-temperature Hopkinson torsion bar, high-temperature testing within [...] Read more.
Based on the modified Hopkinson torsion bar, a high-temperature dynamic shear test method was proposed for the Ti-1023 alloy, and the microstructural evolution of the tested material at different temperatures was studied. By using the modified high-temperature Hopkinson torsion bar, high-temperature testing within 1000 °C can be achieved. As the specimen-heating rate was fast, and the temperature gradient of the experimental environment was small, valid experimental data can be ensured during the experiment. The experimental results show that stress-induced martensite can significantly enhance the strength of the Ti-1023 alloy. Dynamically recrystallized grains similar to those in adiabatic shear bands appear in the microstructure of the Ti-1023 alloy after severe plastic deformation. Therefore, it is possible to regulate the content of stress-induced martensite in the microstructure to improve the mechanical properties of other alloys that are similar to β titanium alloys. Full article
(This article belongs to the Special Issue Tribology in Materials Processing)
Show Figures

Figure 1

15 pages, 6755 KiB  
Article
Study on the Tribological Behaviour of Nanolubricants during Micro Rolling of Copper Foils
by Linan Ma, Jingwei Zhao, Mingya Zhang, Zhengyi Jiang, Cunlong Zhou and Xiaoguang Ma
Materials 2022, 15(7), 2600; https://doi.org/10.3390/ma15072600 - 1 Apr 2022
Cited by 10 | Viewed by 1794
Abstract
Water-based lubricants with different fractions of TiO2 nanoparticles ranging from 1.0 to 9.0 wt.% were utilized to study the lubrication mechanisms during micro rolling tests and the tribological behaviour of nanolubricants during the micro rolling of copper foils. The results indicate that [...] Read more.
Water-based lubricants with different fractions of TiO2 nanoparticles ranging from 1.0 to 9.0 wt.% were utilized to study the lubrication mechanisms during micro rolling tests and the tribological behaviour of nanolubricants during the micro rolling of copper foils. The results indicate that the application of TiO2 nanolubricants remarkably improves the surface quality of rolled copper foils during rolling processes. For lubricants with inadequate TiO2 nanoparticles, it is found that few TiO2 nanoparticles enter the contact regions between the rolls and foils, causing insufficient lubrication during rolling processes. Instead, for lubricants with excessive TiO2 nanoparticles, obvious agglomeration occurs at the contact regions and promotes the generation of voids on the surface of the rolled foils, thereby deteriorating the surface quality of the rolled copper foils. In addition, it is found that the surface quality of rolled foils is improved by utilizing a large reduction ratio. Overall, the fraction of 3.0 wt.% TiO2 nanolubricants is optimal to improve the lubrication conditions at the contact regions, thereby improving the surface quality of the rolled copper foils. Full article
(This article belongs to the Special Issue Tribology in Materials Processing)
Show Figures

Figure 1

Back to TopTop