Ultrasonic-Aided Laser Drilling of Aluminium-Based Metal Matrix Composites

W. S. Lau, Tai Man Yue, M. Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

57 Citations (Scopus)


In pulsed Nd: YAG laser drilling of aluminium-cased metal matrix composites (MMCs), it is well known that there are problems of limited maximum depth-of-drill, non-cylindrical hole profile and the presence of excessive re-cast material which are associated with the conventional process. A novel combined ultrasonic-laser machining technique has been developed to improve the overall quality of laser drilled holes. It has been proven that this ultrasonic-aided laser machining technique not only increases the depth-of-drill, but also improves the quality of the hole. A mathematical model is proposed to describe the shape of the machined hole.
Original languageEnglish
Pages (from-to)177-180
Number of pages4
JournalCIRP Annals - Manufacturing Technology
Issue number1
Publication statusPublished - 1 Jan 1994


  • composite
  • laser beam machining
  • ultrasonic

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering


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