Parameter studies of fibre laser micro-welding of AISI 316L using Taguchi method

Chi Wai Chan, H.C. Man, T.M. Yue

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper discusses the application of the Taguchi experimental design approach in optimizing the key process parameters for micro-welding of thin AISI 316L foil using the 100W CW fibre laser. A L16 Taguchi experiment was conducted to systematically understand how the power, scanning velocity, focus position, gas flow rate and type of shielding gas affect the bead dimensions. The welds produced in the L16 Taguchi experiment was mainly of austenite cellular-dendrite structure with an average grain size of 5µm. An exact penetration weld with the largest penetration to fusion width ratio was obtained. Among those process parameters, the interaction between power and scanning velocity presented the strongest effect to the penetration to fusion width ratio and the power was found to be the predominantly important factor that drives the interaction with other factors to appreciably affect the bead dimensions.
Original languageEnglish
Title of host publicationPacific International Conference on Applications of Lasers and Optics, PICALO 2008
Place of PublicationUS
PublisherLaser Institute of America
Publication statusPublished - 2008


  • Laser Welding
  • SS316L
  • Taguchi Method

ASJC Scopus subject areas

  • Engineering (miscellaneous)

Fingerprint Dive into the research topics of 'Parameter studies of fibre laser micro-welding of AISI 316L using Taguchi method'. Together they form a unique fingerprint.

Cite this