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Influence of process parameters on weld quality and evolution of microstructure and microhardness in laser welding of NiTinol-SS304 dissimilar combination

  • S. Datta*
  • , M. S. Raza
  • , K. Chirikuri
  • , P. Saha
  • , D. K. Pratihar
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Both NiTinol and SS304 are extensively used in biomedical industries. Dissimilar welding of NiTinol with SS304 is not widely reported. In this experimental work, dissimilar combination of NiTinol and SS304 for joining with the help of fiber laser was studied. The purpose of this experimental work was to recognize the influence of laser welding process variables on the quality characteristics of dissimilar joint of SS304 and NiTinol. Laser power and scan speed were chosen as input process parameters, and top bead width, bottom bead width, and microhardness of the weld area were considered as output variables. Statistical regression investigation was performed to determine the input-output relationship. The obtained equation was found to be adequate for predicting the output variables within the working range of the input variables.

Original languageEnglish
Title of host publicationA Guide to Laser Welding
PublisherNova Science Publishers, Inc.
Pages123-139
Number of pages17
ISBN (Electronic)9798891134010
ISBN (Print)9798886976137
StatePublished - 22 Dec 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2023 Nova Science Publishers, Inc.

Keywords

  • Dissimilar welding
  • Laser welding
  • NiTinol
  • Regression analysis
  • SS304

ASJC Scopus subject areas

  • General Engineering

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