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Metals
Special Issues
Rolling Process of Metallic Materials
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Special Issue "Rolling Process of Metallic Materials"

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Casting, Forming and Heat Treatment".

Deadline for manuscript submissions: 31 August 2023 | Viewed by 2001

Special Issue Editor

Prof. Dr. Xuedao Shu

E-Mail Website
Guest Editor
School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315021, China
Interests: metal plastic forming process and equipment

Special Issue Information

Dear Colleagues,

The Special Issue on the "rolling process of metallic materials" in Metals will focus on recent advances in the science and technology related to rolling forming of alloys and steels. The topics will cover the whole field of metal rolling, from the development of new rolling processes and equipment, to macro-forming quality and microstructure performance, to final application and, increasingly, the issues of sustainability and end of life.

In this Special Issue, original research articles and reviews are welcome. This Special Issue will cover all aspects of material analysis, forming process, deformation characteristics and microstructure evolution, including:

  • Innovative rolling process and equipment;
  • Skew rolling technologies for metals;
  • Cold/warm/hot rolling technologies for metals;
  • Cross wedge rolling and ring rolling technology;
  • The relationship between forming process and microstructure properties of various metallic materials;
  • Combination of other forming processes and rolling processes;
  • Numerical simulation and experiments of skew rolling processes;
  • Microstructural/mechanical characterization techniques of metals;
  • Fatigue properties of metals.

Prof. Dr. Xuedao Shu
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. Metals 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 2000 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

  • forming
  • alloy and steel rolling
  • numerical simulation and experiment
  • skew rolling
  • cross wedge rolling
  • ring rolling
  • characterization
  • microstructure
  • mechanical property

Published Papers (4 papers)

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Research

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Article
Effect of Process Parameters on Spinning Force and Forming Quality of Deep Cylinder Parts in Multi-Pass Spinning Process
by
Libo Li
,
Siyuan Chen
,
Qinying Lu
,
Xuedao Shu
,
Jun Zhang
and
Weiwei Shen
Metals 2023, 13(3), 620; https://doi.org/10.3390/met13030620 - 20 Mar 2023
Viewed by 293
Abstract
In this paper, based on MSC Simufact.Forming v16.0 simulation software, the process parameters in the multi-pass spinning production of deep cylinders with a large diameter–thickness ratio are optimized, and the ten-pass spinning process of a deep cylinder with a diameter of 500 mm, [...] Read more.
In this paper, based on MSC Simufact.Forming v16.0 simulation software, the process parameters in the multi-pass spinning production of deep cylinders with a large diameter–thickness ratio are optimized, and the ten-pass spinning process of a deep cylinder with a diameter of 500 mm, thickness of 2 mm and depth of 700 mm is realized. By controlling the four process parameters of mandrel speed, feed rate, spinning wheel fillet radius and spinning wheel angle of attack, the influence of the four process parameters on the spinning force and the wall thickness deviation of the formed workpiece is studied. The results show that the radial spinning force and tangential spinning force are at their minimum when the mandrel speed, feed rate, spinning wheel fillet radius and spinning wheel angle of attack are 500 rpm, 1 mm/rev, 6 mm and 35°, respectively. At these setup conditions, the spinning efficiency is the highest and the workpiece is not prone to defects. The wall thickness deviation of the workpiece will decrease with the increase in the mandrel speed; with the increase in the feed rate, the radius of the round corner and spinning wheel angle of attack, the wall thickness deviation increases first and then decreases. Full article
(This article belongs to the Special Issue Rolling Process of Metallic Materials)
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Article
New Analytical Model for Determining the Roll Pitch Diameter in Three-Roll Continuous Retained Mandrel Rolling
by
Zhaohui Wei
and
Chunjing Wu
Metals 2023, 13(2), 304; https://doi.org/10.3390/met13020304 - 02 Feb 2023
Viewed by 400
Abstract
The continuous tube-rolling method has been widely used to manufacture high-quality seamless pipes and tubes. However, the analytical model for determining the roll pitch diameter in three-roll continuous retained mandrel rolling from first principles has not yet been presented, which has, thus, hindered [...] Read more.
The continuous tube-rolling method has been widely used to manufacture high-quality seamless pipes and tubes. However, the analytical model for determining the roll pitch diameter in three-roll continuous retained mandrel rolling from first principles has not yet been presented, which has, thus, hindered the development of rolling control technology in tube manufacturing. In this work, a new analytical model has been established from the force–equilibrium principles. The modelling has taken the tube-roll contact geometry, roll pressure, mandrel pull forces, inter-stand tensions, and friction coefficients into account for its formulations. Seen from the experimental results of the rolling at the plant, the maximum deviation of the predicted projected contact area is less than 6% and the maximum deviation of the calculated roll speed from the satisfactory data in field operation is less than 3.9%. The proposed model has enabled the influence of the friction coefficients on the roll pitch diameter to be quantified in theoretical analysis, and it was found that the changing amplitude of the theoretical roll pitch diameter corresponding to the commonly used data range of the friction coefficients can be above 9%. Having overcome the shortcomings of the empirical model, this model has the required prediction accuracy and flexibility for being applied to flexible tube rolling. By building the key algorithms around physical models, this modelling has advanced not only the rolling control at the plant, but also our scientific understanding of the mechanics of the continuous tube-rolling process. Full article
(This article belongs to the Special Issue Rolling Process of Metallic Materials)
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Article
A Machine Vision-Based Method for Detecting Surface Hollow Defect of Hot-State Shaft in Cross Wedge Rolling
by
Huajie Fu
,
Ying Wang
,
Xuedao Shu
,
Xiaojie Chen
and
Kai Lin
Metals 2022, 12(11), 1938; https://doi.org/10.3390/met12111938 - 12 Nov 2022
Viewed by 558
Abstract
In order to solve the problems of low detection efficiency and safety of artificial surface defects in hot-state cross wedge rolling shaft production line, a machine vision-based method for detecting surface hollow defect of hot-state shafts is proposed. Firstly, by analyzing the high [...] Read more.
In order to solve the problems of low detection efficiency and safety of artificial surface defects in hot-state cross wedge rolling shaft production line, a machine vision-based method for detecting surface hollow defect of hot-state shafts is proposed. Firstly, by analyzing the high reflective properties of the metal shaft surface, the best lighting method was obtained. And by analyzing the image contrast between image foreground and image background, the most suitable optical filter type in image acquisition was determined. Then, Fourier Gaussian low-pass filtering method is used to remove the interference noise of rolled shafts surface in frequency domain, such as high-light, oxide skin and surface texture. Finally, by analyzing the characteristics of the surface hollow defect area, a defect identification method combining the Otsu threshold method and the adaptive threshold method is proposed to realize the effective extraction of surface hollow defect of rolled shafts. The test results show that the average recognition rate of the method based on machine vision is 95.7%. The results of this paper provide technical support to meet the production requirements of high quality and high performance of cross wedge rolling. Full article
(This article belongs to the Special Issue Rolling Process of Metallic Materials)
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Review

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Review
Analysis and Prospect of Precision Plastic Forming Technologies for Production of High-Speed-Train Hollow Axles
by
Xuedao Shu
,
Caoqi Ye
,
Jitai Wang
,
Yingxiang Xia
,
Song Zhang
,
Ying Wang
,
Haijie Xu
and
Yimin Deng
Metals 2023, 13(1), 145; https://doi.org/10.3390/met13010145 - 10 Jan 2023
Viewed by 446
Abstract
The hollow axle is the key basic component of high-speed trains. How to realize its production with short process and high-quality precision plastic forming is the frontier of current research and a major problem to be solved. On the basis of analyzing the [...] Read more.
The hollow axle is the key basic component of high-speed trains. How to realize its production with short process and high-quality precision plastic forming is the frontier of current research and a major problem to be solved. On the basis of analyzing the advantages and disadvantages of the existing forging process of the hollow axle, this paper expounds the principles and characteristics of multi-wedge synchrostep cross-wedge rolling (MSCWR) technology, multi-roll cross-wedge rolling (MCWR) technology, three-roll skew rolling (TRSR) technology, and tandem flexible skew rolling (TFSR) technology in detail, and discusses the feasibility and key technical problems of these technologies to form the hollow axle. It is concluded that tandem flexible skew rolling (TFSR) technology has the advantages of short process, high quality, high efficiency, energy saving, and material saving, and this technology is the development direction of precision plastic forming of the hollow axle. The research results provide technical guidance and research directions for promoting global high-speed rail development. Full article
(This article belongs to the Special Issue Rolling Process of Metallic Materials)
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