The synergy between powder metallurgy processes and welding of metallic alloy: a review

Ayorinde Tayo Olanipekun, Nthabiseng Beauty Maledi, Peter Madindwa Mashinini

Research output: Contribution to journalReview articlepeer-review

9 Citations (Scopus)

Abstract

Powder metallurgy (PM) technology is an ideal manufacturing process to produce near net shape parts i.e. part that requires little or no machining, examples of PM processes are spark plasma sintering, isostatic pressing and additive manufacturing. PM allows maximisation of materials and produces part with optimised mechanical and physical properties. Also, PM process provides the possibility to further increase the industrial use of PM parts by fabricating it into complex geometrical shapes via joining. Joining is the most important mechanical process necessary for PM parts to perform in actual service conditions expected in automobile parts and structural parts. Despite apparent advantages of PM processes, joining PM parts has been a tedious process, due to challenges associated with inherent characteristics, like porosity, chemical composition and impurities like oil or grease, which tend to impair the weldments property. In this document, a review of PM process is presented, focusing on different welding methods that can be used to effectively join PM components.

Original languageEnglish
Pages (from-to)254-267
Number of pages14
JournalPowder Metallurgy
Volume63
Issue number4
DOIs
Publication statusPublished - 7 Aug 2020

Keywords

  • metallic alloy
  • Powder metallurgy
  • welding technology

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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