Journal of Failure Analysis and Prevention

, Volume 18, Issue 1, pp 136–144 | Cite as

Additive Manufacturing of Ti-6Al-4V Aero Engine Parts: Qualification for Reliability

  • Mathews P. Samuel
  • Aditya Kumar Mishra
  • R. K. Mishra
Technical Article---Peer-Reviewed


The present paper highlights the study carried out on the qualification aspects of aero engine parts manufactured through additive manufacturing process. The study covers mainly the parts of aeronautical workhorse material Ti-6Al-4V in terms of quality and reliability aspects contributing toward airworthiness. The mechanical properties of various methods of additive manufacturing have been compared, and manufacturing process parameters have been studied. The paper also highlights the process validation parameters and qualification approach for this type of manufacturing. Possible failure modes and imperfections have been focused with respect to their effect on quality and reliability of the end product. The failure mitigation plan has been evolved through a three-tier approach which will be very useful to ensure the reliability of the aero engine parts.


Qualification Quality Airworthiness Additive Manufacturing Aeronautical parts 



The authors express their sincere gratitude to the Chief Executive of Center for Military Airworthiness and Certification, Bangalore, India, for his kind permission to publish this study. The authors are also very thankful to the Engineers of Aero Engine R&D Center, Bangalore, India, for their valuable inputs during this study.


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Copyright information

© ASM International 2018

Authors and Affiliations

  • Mathews P. Samuel
    • 1
  • Aditya Kumar Mishra
    • 1
  • R. K. Mishra
    • 1
  1. 1.Centre for Military Airworthiness and CertificationBangaloreIndia

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