the Tantalum-Niobium International Study Center (T.I.C.) : T.I.C. Bulletin Entry – No. 187

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T.I.C. Bulletin Entry – No. 187

This edition features the 2021 Ekeberg Prize-winning paper on tantalum machining challenges. It explores cutting mechanics, sinuous flow, and a novel mechanochemical effect using marker ink to improve cutting efficiency. The bulletin also includes updates on GA62 and T.I.C. staff appointments.
Explore the October 2021 edition of the T.I.C. Bulletin featuring the award-winning study on tantalum machining, GA62 preview, and industry news.

Feature Article Title:

Cutting of Tantalum: Why It Is So Difficult and What Can Be Done About It

Feature Article Summary:

The 2021 Ekeberg Prize-winning paper by a US-Japanese research team investigates why tantalum is notoriously difficult to machine. Using high-speed imaging, it identifies sinuous plastic flow as the cause and demonstrates that applying a surface-adsorbing medium (e.g., permanent marker ink) transforms chip formation and improves machining efficiency.

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