| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Recycling and Sustainability in Cast Shop Technology: Joint Session with REWAS 2025
|
| Presentation Title |
An Alternative Route to Upcycling Low Value Post Consumer Al Scrap (Twitch) Without Sortation |
| Author(s) |
Shri Shankar, Carl Soderhjelm, Diran Apelian, Stuart Wiesner |
| On-Site Speaker (Planned) |
Shri Shankar |
| Abstract Scope |
As our consumption of aluminum continues to grow the demand to maximize the use of aluminum scrap grows proportionally. This includes using all aluminum scrap, especially low-quality scrap. Automotive aluminum scrap dubbed “Twitch” is a amalgamation of aluminum alloys that is melted and downcycled to low-value alloys. The complexity behind accurate and rapid sortation hinders the ability to readily sort Twitch and forces secondary smelters to melt the alloys together downcycling the scrap stream. The Advanced Casting Research Center (ACRC) is working towards upcycling Twitch to develop a high-value green aluminum alloy made from Twitch without utilizing sortation technologies. A quantitative study of the Twitch DNA was conducted to understand the value in Twitch. This study looks at a sample batch of Twitch and the relationship between particle size, chemistry, and alloy type. The work conducted in this study offers an alternative form of classification for the alloys in Twitch. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Recycling and Secondary Recovery, |