View in EDS

Scale effect on springback behavior of pure titanium foils in microbending at elevated temperature.

Saved in:
Bibliographic Details
Title: Scale effect on springback behavior of pure titanium foils in microbending at elevated temperature.
Authors: Zheng, Qiu1 qiu-zheng@ed.tmu.ac.jp, Shimizu, Tetsuhide1, Yang, Ming1
Source: Journal of Materials Processing Technology. Apr2016, Vol. 230, p233-243. 11p.
Subjects: Thermal stresses, Microbending, Thermal properties, Titanium, High temperatures
Abstract: The occurrence of size effects in microforming process influences the accuracy of the products significantly. To investigate the scale effect and the mechanism of springback behavior of thin pure titanium (Ti) foils bent at elevated temperatures, scaled microbending processes assisted by resistance heating are performed for the foils with different thickness of 0.02, 0.05, and 0.1 mm. It is found that the springback angle increases with decreasing foil thickness at room temperature. However, after bending at elevated temperatures, the springback angle is found to decrease with decreasing foil thickness. Due to the lower flow stress of surface, the influence of surface area is thought to be the dominating factor that results in the less springback of thinner foils at elevated temperatures. To confirm this and to predict the springback angles at elevated temperatures, a new theoretical model of surface area increasing with increasing temperature is proposed. The springback angles are calculated by theoretical analysis using conventional plastic theory and the proposed model. As temperature increases, the large reduction of springback angles compared to 298 K can be captured by using the proposed model successfully. The validity of the proposed model is confirmed. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Processing Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 112052949
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Scale effect on springback behavior of pure titanium foils in microbending at elevated temperature.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Zheng%2C+Qiu%22">Zheng, Qiu</searchLink><relatesTo>1</relatesTo><i> qiu-zheng@ed.tmu.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Shimizu%2C+Tetsuhide%22">Shimizu, Tetsuhide</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yang%2C+Ming%22">Yang, Ming</searchLink><relatesTo>1</relatesTo>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Processing+Technology%22">Journal of Materials Processing Technology</searchLink>. Apr2016, Vol. 230, p233-243. 11p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Thermal+stresses%22">Thermal stresses</searchLink><br /><searchLink fieldCode="DE" term="%22Microbending%22">Microbending</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+properties%22">Thermal properties</searchLink><br /><searchLink fieldCode="DE" term="%22Titanium%22">Titanium</searchLink><br /><searchLink fieldCode="DE" term="%22High+temperatures%22">High temperatures</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The occurrence of size effects in microforming process influences the accuracy of the products significantly. To investigate the scale effect and the mechanism of springback behavior of thin pure titanium (Ti) foils bent at elevated temperatures, scaled microbending processes assisted by resistance heating are performed for the foils with different thickness of 0.02, 0.05, and 0.1 mm. It is found that the springback angle increases with decreasing foil thickness at room temperature. However, after bending at elevated temperatures, the springback angle is found to decrease with decreasing foil thickness. Due to the lower flow stress of surface, the influence of surface area is thought to be the dominating factor that results in the less springback of thinner foils at elevated temperatures. To confirm this and to predict the springback angles at elevated temperatures, a new theoretical model of surface area increasing with increasing temperature is proposed. The springback angles are calculated by theoretical analysis using conventional plastic theory and the proposed model. As temperature increases, the large reduction of springback angles compared to 298 K can be captured by using the proposed model successfully. The validity of the proposed model is confirmed. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Processing Technology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=112052949
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jmatprotec.2015.11.025
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 233
    Subjects:
      – SubjectFull: Thermal stresses
        Type: general
      – SubjectFull: Microbending
        Type: general
      – SubjectFull: Thermal properties
        Type: general
      – SubjectFull: Titanium
        Type: general
      – SubjectFull: High temperatures
        Type: general
    Titles:
      – TitleFull: Scale effect on springback behavior of pure titanium foils in microbending at elevated temperature.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Zheng, Qiu
      – PersonEntity:
          Name:
            NameFull: Shimizu, Tetsuhide
      – PersonEntity:
          Name:
            NameFull: Yang, Ming
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 04
              Text: Apr2016
              Type: published
              Y: 2016
          Identifiers:
            – Type: issn-print
              Value: 09240136
          Numbering:
            – Type: volume
              Value: 230
          Titles:
            – TitleFull: Journal of Materials Processing Technology
              Type: main
ResultId 1