Characterizing the effect of processing parameters on the porosity of laser deposited titanium alloy powder

R.M. Mahamood, E.T. Akinlabi, M. Shukla, S. Pityana, Ao S.I. Castillo O. (Editor), Douglas C. Lee J.-A. (Editor), Feng D.D. (Editor)

Research output: Contribution to conferenceOtherpeer-review

5 Citations (Scopus)

Abstract

Laser Metal Deposition (LMD) is an additive manufacturing technique that produces parts layer by layer directly from the Computer Aided Design (CAD) file. Highly customized parts with complex shapes such as medical implants can well be manufactured using the LMD process. LMD has been used to produce a wide range of patient specific (customized) parts. Porous parts are of particular importance as medical implants because they can potentially aid the healing process and proper integration of the implant with the body tissues. In this research porous samples of titanium alloy (Ti6Al4V) were produced using the LMD process. Spherical shaped Ti6Al4V powder of particle size ranging between 150 to 200 μm was used. The effect of laser power and scanning speed on the shape, size and degree of porosity of the deposited tracks was investigated. The results showed that as the laser power was increased and the scanning speed decreased, the degree of porosity was reduced. The size of the porosity was also found to reduce as the laser power was increased.
Original languageUndefined/Unknown
Publication statusPublished - 2014

Bibliographical note

cited By 0; Conference of International MultiConference of Engineers and Computer Scientists, IMECS 2014 ; Conference Date: 12 March 2014 Through 14 March 2014; Conference Code:113110

Keywords

  • Computer aided design
  • Deposition
  • Particle size
  • Porosity
  • Powder metals
  • Titanium, Additive Manufacturing
  • Customized parts
  • Degree of porosity
  • Laser metal deposition
  • Medical implants
  • Patient specific
  • Processing parameters
  • Titanium alloy powders, Titanium alloys

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