Gas flow rate and powder flow rate effect on properties of laser metal deposited Ti6Al4V

S. Pityana, R.M. Mahamood, E.T. Akinlabi, M. Shukla

Research output: Contribution to conferenceOther

19 Citations (Scopus)

Abstract

Tracks of Ti6Al4V powder were deposited on Ti6Al4V substrate using Laser Metal Deposition (LMD) process, an Additive Manufacturing (AM) manufacturing technology, at a laser power and scanning speed maintained at 1.8 kW and 0.005 m/s respectively. The powder flow rate and the gas flow rate were varied to study their effect on the physical, metallurgical and mechanical properties of the deposits. The physical properties studied are: the track width, the track height and the deposit weight. The mechanical property studied is the Microhardness profiling using Microhardness indenter at a load of 500g and dwelling time of 15 μm. The metallurgical property studied is the microstructure using the Optical microscopy. This study revealed that as the powder flow rate was increased, the track width, track height and the deposit weight were increased while as the powder flow rate was increased, the track width, track height and the deposit weight decreased. The results are presented and discussed in detail.
Original languageEnglish
Pages848-851
Publication statusPublished - 2013
Externally publishedYes

Bibliographical note

cited By 4; Conference of International MultiConference of Engineers and Computer Scientists 2013, IMECS 2013 ; Conference Date: 13 March 2013 Through 15 March 2013; Conference Code:97671

Keywords

  • Computer science
  • Deposits
  • Flow of gases
  • Manufacture
  • Mechanical properties
  • Microhardness
  • Microstructure
  • Powder metals
  • Substrates, Additive Manufacturing
  • Dwelling time
  • Laser metal deposition
  • Manufacturing technologies
  • Metallurgical and mechanical properties
  • Metallurgical properties
  • Powder flow rate
  • Scanning speed, Flow rate

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