Laser joining of metals to plastics with ultrasonic vibration

Y. J. Chen, Tai Man Yue, Z. N. Guo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

49 Citations (Scopus)


Ultrasonic-aided laser joining process (UAL) for bonding metals to plastics has been further developed. With the application of an appropriate ultrasonic transducer tool, the quantity of laser-induced bubbles in the bonding zone can be significantly reduced. The removal mechanism of these bubbles from the molten plastic zone was analyzed based on pressure induction on the sample under ultrasonic vibration. Some experiments on joining titanium to polyethylene terephthalate have been conducted to ascertain the superiority of UAL over the conventional laser joining process. The joint strength, measured in terms of failure stress, was significantly increased when ultrasonic vibration was employed during laser joining. The joints formed without vibration always failed by separation along the metal-plastic interface, whereas, for the UAL joints, fracture occurred in the parent plastic material.
Original languageEnglish
Pages (from-to)441-451
Number of pages11
JournalJournal of Materials Processing Technology
Publication statusPublished - 1 Nov 2017


  • Bubbles
  • Failure stress
  • Laser joining
  • Polyethylene terephthalate
  • Titanium
  • Ultrasonic vibration

ASJC Scopus subject areas

  • Ceramics and Composites
  • Computer Science Applications
  • Metals and Alloys
  • Industrial and Manufacturing Engineering


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