Effect of welding parameters on the heat affected zone and the mechanical properties of friction stir welded poly(ethylene-terephthalate-glycol)

Z. Kiss, T. Czigány

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The bond strength and the heat affected zone (HAZ) of friction stir welded seams made of poly(ethylene-terephthalate-glycol) are analyzed in the article. The seams were prepared with various settings (rotation speed and feeding rate) and with various welding tools. Using the welding parameters (rotation speed, the feed rate, and the tool diameter) a K-factor characterizing the welding process was defined. The novel K factor is related to the welding heat input, which is in direct correlation with both the range of the HAZ and the mechanical properties of the seam. The HAZ formed was analyzed by stress optical method, the mechanical properties by flexural test. It has been demonstrated that the efficiency factor of the welded joint is closely related to the width of the HAZ and it depends on the welding parameters and the tools.

Original languageEnglish
Pages (from-to)2231-2238
Number of pages8
JournalJournal of Applied Polymer Science
Volume125
Issue number3
DOIs
Publication statusPublished - Aug 5 2012

Keywords

  • imaging
  • mechanical properties
  • stress
  • thermoplastics

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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