About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Presentation Title |
Design of a Novel TZM Alloy Tool for use in the Additive Friction Stir Deposition of 7XXX Series Aluminum Alloys |
Author(s) |
Matthew Robert Patterson |
On-Site Speaker (Planned) |
Matthew Robert Patterson |
Abstract Scope |
Additive friction stir deposition is an emerging solid state metal additive manufacturing process which feeds a consumable material through a spinning tool. The friction generated at the tool surface plasticizes the material allowing it to be deposited layer by layer. Each material undergoes a unique thermal-mechanical process during plasticization, making tool design essential for the development of AFSD for new materials. Parameters such as material strength, diffusion rate, oxidation, and thermal conductivity are critical for maximizing tool lifespan and material compatibility. Depositing 7XXX aluminum alloys with current tools requires the use of a lubricate which contaminates the deposited material. Without the lubricant, the deposit material will bind inside of the tool. This work investigates the use of TZM molybdenum alloy to increase tool cooling and eliminate material binding. Additionally, a tungsten disulfide coating inside the tool was also employed to prevent the oxidation of TZM and increase tool life. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |