About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Liquid Metal Droplet Jetting of 4008 Aluminum Alloy |
Author(s) |
Usama Rifat, Paarth Mehta, Denis Cormier |
On-Site Speaker (Planned) |
Usama Rifat |
Abstract Scope |
This paper studies properties of 4008 aluminum alloy components that have been fabricated via the liquid metal droplet jetting (LMJ) process. Alloy 4008 is the wire form of the Al-Si-Mg-Ti A356 aluminum casting alloy. A Xerox ElemX machine using 4008 aluminum wire was used to fabricate all samples in this study. In order to assess the effect of layer orientation and droplet raster direction on mechanical properties, standard ASTM E-8 tensile bars were fabricated at multiple orientations within the build envelop. The default recommended values for parameters such as layer thickness, jetting frequency, and drop spacing were used. The printed coupons were heat treated to a T6 temper and then finish machined. Prior to tensile testing, the porosity of coupons in each orientation was assessed using a Pinnacle X-ray CT scanner. Results of tensile testing, porosity analysis, fractography, and microstructural analysis will be presented. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |