Comparison between ultrasonic vibration-assisted upsetting and conventional upsetting

Yanxiong Liu, Sergey Suslov, Qingyou Han, Lin Hua, Clause Xu

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Ultrasonic vibration has been increasingly applied to metal forming processes due to its beneficial effects on the reduction of the forming force, flow stress, and friction coefficient and on the increase of the forming limit of the sheet metal. In this work, the effect of the ultrasonic vibration on the upsetting has been studied experimentally and numerically. The microstructure of the specimens processed with ultrasonic vibration-assisted upsetting (UAU) and conventional upsetting was characterized. Differences in the forming characteristics between these two methods, in terms of metal flow and forming force, were analyzed. The results of this study indicate that the use of high-intensity ultrasonic vibration can induce severe plastic deformation and improve the grain refinement efficiency. The grains of the specimens processed by the UAU process were refined to 100 to 300 nm. A deformation mechanism of the UAU process was proposed. The grain refinement mechanism was used to explain the reason why ultrasonic vibration can be used to improve the grain refinement efficiency of the upsetting process.

Original languageEnglish
Pages (from-to)3232-3244
Number of pages13
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume44
Issue number7
DOIs
Publication statusPublished - 2013
Externally publishedYes

Fingerprint

Upsetting (forming)
upsetting
Vibrations (mechanical)
ultrasonics
Ultrasonics
vibration
Grain refinement
metal forming
metal sheets
Metal forming
Sheet metal
Plastic flow
coefficient of friction
plastic deformation
Plastic deformation
Metals
Friction
microstructure
Microstructure

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Metals and Alloys
  • Mechanics of Materials

Cite this

Comparison between ultrasonic vibration-assisted upsetting and conventional upsetting. / Liu, Yanxiong; Suslov, Sergey; Han, Qingyou; Hua, Lin; Xu, Clause.

In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 44, No. 7, 2013, p. 3232-3244.

Research output: Contribution to journalArticle

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