About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Characterization Techniques for Quantifying Effect of Interlayer Surface Peening on AlSi10Mg |
Author(s) |
Guru Charan Reddy Madireddy, Luz Sotelo, Rangasayee Kannan, Joseph Turner, Thomas Feldhausen, Michael Sealy |
On-Site Speaker (Planned) |
Guru Charan Reddy Madireddy |
Abstract Scope |
With the development of new hybrid additive manufacturing (hybrid AM) technologies that enable complex and interconnected pseudo-composite properties, new material characterization methods need to be developed. This work explores the effect of interlayer laser peening during powder bed fusion of AlSi10Mg coupons, using a semi-destructive method by hole drilling for residual stress measurement, a nondestructive ultrasound method via surface wave measurements, and traditional material characterization such as microstructure (SEM and EBSD) and microhardness. These methods were used to quantify the effect of hybrid AM process on parts and evaluate the capability and sensitivity of measuring methods for glocal integrity in parts. Results show the residual stresses were reduced by 100 MPa when compared as printed and are in correlation with the ultrasound wave speed and scattering amplitude. Refined grains were observed in hybrid parts while increasing the hardness throughout the sample when compared to as printed coupon. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |