The prediction of macro-defects during the isothermal forging process by the rigid-viscoplastic finite-element method

Mingwang Fu, Zijian Luo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

26 Citations (Scopus)

Abstract

Macro-defects often occur during isothermal forging of workpieces of complicated shape. The occurrence of macro-defects is mainly attributable to an abnormal flow pattern of the metal. In order to reveal the cause of macro-defects during isothermal forging of a very large aluminium wheel for an aeroplane, the forging process is simulated by the rigid-viscoplastic finite-element method. The results so calculated show that the occurrence of a folding defect is caused by an abnormal flow pattern. Improvement in the die design and lubrication conditions are effective measures to avoid this kind of defect.
Original languageEnglish
Pages (from-to)599-608
Number of pages10
JournalJournal of Materials Processing Tech.
Volume32
Issue number3
DOIs
Publication statusPublished - 1 Jan 1992
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)

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