About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
General Poster Session
|
Presentation Title |
A-157: Effect of Process Parameters on Plasma Transferred Arc Additive Manufactured 17-4PH Using the Taguchi Method |
Author(s) |
Sandy Ibrahim, Jose Mercado Rojas, Tonya Wolfe, Hani Henein, Ahmed Qureshi |
On-Site Speaker (Planned) |
Sandy Ibrahim |
Abstract Scope |
Plasma transferred arc additive manufacturing (PTA-AM) is a newly developed AM process proposed for the manufacturing of large industrial parts that can be used in applications for the resource sector. 17-4PH stainless steel is a common material used in numerous industries due to its good corrosion resistance, ease of fabrication and an UTS of about 1400 MPa at peak age hardening. The PTA-AM system has numerous process parameters such as shield, center and powder gas pressures and flowrates, current, voltage, angle of powder nozzle deposition relative to the welding direction and speed of an automated table connected to the PTA-AM system. A G-code for the automated table was developed for each desired printed AM shape. The different combinations of the above parameters can result in numerous, very different mechanical properties and microstructures of the AM samples as well as geometrical uniformity. A full factorial of experiments to print an optimized (minimum porosity and at least comparable hardness and UTS relative to other manufacturing processes) 17-4PH stainless AM part is not feasible within a reasonable timeframe. Thus, a Taguchi design of experiments (DOEs) was designed to identify the most influential parameters on the final mechanical properties and microstructure. This poster will present the results from Taguchi’s DOEs and their relationship to the built PTA-AM of 17-4PH stainless steel samples. |
Proceedings Inclusion? |
Undecided |