CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 11589 > Article
Paper
22 March 2021 Study on the microstructural and hardness variations of unsupported overhangs fabricated using selective laser melting
Aditya Ganesh-Ram, Samarth Ramachandra, Bharath Bhushan Ravichander, Nahid Swails, Amirhesam Amerinatanzi
Author Affiliations +
Proceedings Volume 11589, Behavior and Mechanics of Multifunctional Materials XV; 115890O (2021) https://doi.org/10.1117/12.2585605
Event: SPIE Smart Structures + Nondestructive Evaluation, 2021, Online Only
Abstract
Inconel 718 (IN718), a nickel-based superalloy, is commonly used in rocket nozzles and turbines. Conventional manufacturing of complex IN718 geometries is difficult due to its high stiffness values. Consequently, Additive Manufacturing (AM) methods like selective laser melting (SLM), offers a viable solution for the fabrication of parts using IN718 with high accuracy. One of the limitations of this technique is its need for supports in order to fabricate overhanging structures. These supports need to be designed carefully and tend to consume a significant amount of resources. In this research, we studied the angled structures fabricated without supports. The overhangs were fabricated using uniform process parameters for varying thicknesses. Microstructural and hardness analyses were carried out to determine variations in melt pools and Vickers hardness. The outcome of this study will help us in predicting the need for supports in overhangs and inclined structures used within a part having complex geometry.
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Aditya Ganesh-Ram, Samarth Ramachandra, Bharath Bhushan Ravichander, Nahid Swails, and Amirhesam Amerinatanzi "Study on the microstructural and hardness variations of unsupported overhangs fabricated using selective laser melting", Proc. SPIE 11589, Behavior and Mechanics of Multifunctional Materials XV, 115890O (22 March 2021); https://doi.org/10.1117/12.2585605
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 6 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Surface roughness
Additive manufacturing
Analytical research
Fabrication
Manufacturing
Spatial light modulators
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top