Friction stir welding of tube-to-tubesheets for thermoplastic shell and tube heat exchangers

Syed Haris Iftikhar, Abdel Hamid Ismail Mourad, Dinu Thomas Thekkuden

Research output: Contribution to journalArticlepeer-review

Abstract

Recently, there is a real demand for thermoplastic shell-and-tube heat exchangers because of their antifouling and chemically inert properties. A novel non-conventional joining technique is developed for creating efficient thermoplastic tube-to-tubesheet joints (TTJs) using the friction stir welding (FSW) process. The carbon black reinforced high-density polyethylene sheet and tube materials are used. A highly ductile joint with a maximum strength of 517 N (42 % greater than adhesives), and a maximum leak path of 3 mm (77 % of remaining tubesheet thickness) was achieved using FSW. The proposed technique was found promising and reliable for developing TTJs for thermoplastic shell-and-tube heat exchangers.

Original languageEnglish
Pages (from-to)82-86
Number of pages5
JournalManufacturing Letters
Volume34
DOIs
Publication statusPublished - Oct 2022

Keywords

  • Friction stir welding
  • Heat exchanger
  • High-density polyethylene
  • Thermoplastics
  • Tube-to-tubesheet joint

ASJC Scopus subject areas

  • Mechanics of Materials
  • Industrial and Manufacturing Engineering

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