Development and airworthiness certification of state of art additively manufactured AlSi10Mg mission critical selector valve body part for aerospace

Aerospace applications can benefit from additive manufacturing (AM), which is highly advantageous for prototyping and rapid manufacturing. It also offers cost and weight savings, as well as integrated design capabilities. As of now, there are only a few AM standards available, many materials and equ...

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Published in:Frontier Materials & Technologies 2023 (3), p.19-30
Main Authors: Vignesh, P., Praveen, K. V., Krishnakumar, S., Bhuvaneswari, M. Ch, Kale, Sh. Sh, Ram Prabhu, T.
Format: Article
Language:English
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additive manufacturing
al alloy
alsi10mg
development and certification
precipitate hardening
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container_title Frontier Materials & Technologies
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creator Vignesh, P.
Praveen, K. V.
Krishnakumar, S.
Bhuvaneswari, M. Ch
Kale, Sh. Sh
Ram Prabhu, T.
description Aerospace applications can benefit from additive manufacturing (AM), which is highly advantageous for prototyping and rapid manufacturing. It also offers cost and weight savings, as well as integrated design capabilities. As of now, there are only a few AM standards available, many materials and equipment are involved, resulting in many variables that hinder certification and adoption. As a result, nonstandard testing is making AM in the airborne materials less appealing due to its costly and time-consuming nature. The main objective of this work is to manufacture the Selector Valve Body parts of military and civil aircraft through Laser Powder Bed Fusion (LPBF) process using AlSi10Mg powder. Further, this paper has been carried out the metallurgical properties, non-destructive and destructive testing as well as the clear explanation about the certification procedures. Moreover, this underscores the need for the developing guidelines and standards that cover all aspects of manufacturing from design to manufacturing to operation. A comprehensive analysis from liquid penetration test shows defects are within the permissible level. In addition, it exhibits higher yield strength, ultimate strength, and elongation of (259±4), (323±4) MPa, and (12.5±1.5) % respectively, along with factual evidence that the precipitation hardened AlSi10Mg indigenously developed and produced is equal in properties to the equivalent precipitation hardening aluminium alloys produced by internationally renowned manufacturers.
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subjects additive manufacturing
al alloy
alsi10mg
development and certification
precipitate hardening
title Development and airworthiness certification of state of art additively manufactured AlSi10Mg mission critical selector valve body part for aerospace
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