Net shape forming of Ti6Al4V implants via green machining

Pavan Kumar Srivas, Kausik Kapat, Krishna Chaitanya, Subhranil Koley, Bo Su, Santanu Dhara*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

Machining of bulk Ti6Al4V is relatively difficult owing to low elastic modulus, high work hardening tendency, stickiness, poor thermal conductivity besides formation of long continuous chips during machining. Near net shaping through green machining could be a viable alternative to conventional milling procedure. Herein, fabrication of Ti6Al4V dental root and spinal plate equivalents was successfully demonstrated through machining of green Ti6Al4V compacts prepared by plastic dough processing. For process reliability, the green as well as the sintered components were characterized for physico-mechanical properties, defect and shrinkage analysis for dimensional accuracy of the desired objects and Weibull modulus study for ensuring reliability of mechanical properties of the samples. Evidently, green machining could be a simple viable alternative for manufacturing of titanium implants in a cost-effective way.
Original languageEnglish
Number of pages9
JournalJournal of Materials Research
DOIs
Publication statusPublished - 30 Aug 2021

Bibliographical note

Funding Information:
This study was financially supported by Defence Research and Development Organization (DRDO) (Grant No. DLS/81/48222/LSRB-241/BDB/2012), Government of India, BIRAC SRISTI, and the Department of Biotechnology (DBT) (Grant No. BIRAC SRISTI PMU-2016/004). Authors also acknowledge Central Research Facility (CRF), IIT Kharagpur for providing facilities of materials characterization.

Publisher Copyright:
© 2021, The Author(s), under exclusive licence to The Materials Research Society.

Keywords

  • Metal machining
  • Powder metallurgy
  • Cost-effective
  • Extrusion
  • Sintering

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