| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Practical Tools for Integration and Analysis in Materials Engineering
|
| Presentation Title |
A Private Ledger Architecture Tailored for Secure Workflow Management in Additive Manufacturing Facilities |
| Author(s) |
Evan P. Diewald, Jack Beuth |
| On-Site Speaker (Planned) |
Evan P. Diewald |
| Abstract Scope |
While additive manufacturing has revolutionized the way parts are designed, built, and brought to customers, this disruptive processing paradigm presents unique vulnerabilities that challenge existing infrastructures. Distributed ledgers, or “blockchains” are a promising solution, but in their raw form, they are inefficient frameworks not suited for agile manufacturing workplaces. The AM Blockchain is an application designed to facilitate secure, decentralized, and unobtrusive workflow management in AM facilities. Contrary to permissionless systems such as those popularized by Bitcoin and Ethereum, the AM Blockchain is built on a custom private ledger architecture driven by IPFS. The consensus mechanism is a modified version of the Proof of Reputation algorithm, which allows for high transaction throughput without need for costly mining procedures. The modular smart contract handles a diverse array of transaction types, including secure file transfer of part drawings, and it supports IoT integration for seamless tracking of powder and post processing usage. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Process Technology, Other |