| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Process Strategy and Geometrical Distortion of Heat-treated 17-4PH Stainless Steel Produced by Interleaved Machining and Blown-powder DED |
| Author(s) |
Lauren Heinrich, Kenton Fillingim, Rangasayee Kannan, Peeyush Nandwana, Thomas Feldhausen |
| On-Site Speaker (Planned) |
Lauren Heinrich |
| Abstract Scope |
Hybrid manufacturing systems incorporate subtractive and additive manufacturing within one build volume enabling interleaving between the two processes. However, the interleaving of these two processes has been found to create geometric misalignment between the interleaved steps due to the complex thermal cycling of the hybrid process. To investigate this phenomena, four differing interleaving strategies were applied to a 17-4PH stainless steel planar wall. Different rough and finish machining scheduling strategies were used to determine the best interleaving strategy for optimal geometric accuracy. Of the four walls, the wall that was machined at a distance away from the recently deposited material was found to have the highest dimensional accuracy. To simulate real-world applications, subsequent heat treatments were applied to three of the walls to better understand the effect that heat treatment after final machining has on geometrical accuracy. This result will better enable the accurate manufacture of interleaved hybrid manufactured components. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |