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HomeKey Engineering MaterialsKey Engineering Materials Vol. 926Near-Net Forging of Titanium and Titanium Alloys...

Near-Net Forging of Titanium and Titanium Alloys by the Plasma Carburized SKD11 Dies

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Abstract:

The carbon supersaturated SKD11 punch and core-die were prepared by the plasma carburizing at 673 K for 14.4 ks. The upsetting experiment was performed by using this punch to describe the plastic flow of pure titanium and β-titanium works in higher reduction of thickness than 50%. The measured load – stroke relationship was utilized to describe the frictional behavior on the contact interface of punch to work materials and their work hardening process. The contact interface of carbon supersaturated punch to work was analyzed to investigate the formation of isolated carbon tribofilms from punch material and to describe the in situ solid lubrication on the contact interface. The micro-hardness mapping technique was also utilized to investigate how to suppress the work-hardening behavior by this in-situ solid lubrication. Free near-net forging experiments were performed to shape the circular β-titanium alloy wires to triangular bars.

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Periodical:

Key Engineering Materials (Volume 926)

Pages:

1143-1150

DOI:

https://doi.org/10.4028/p-05e2kr

Citation:

Cite this paper

Online since:

July 2022

Authors:

Tatsuhiko Aizawa, Shunsuke Ishiguro, Tomomi Shiratori*, Tomoaki Yoshino

Keywords:

Carbon Supersaturated SKD11 Dies, Forging, In Situ Solid Lubrication, Titanium Wires

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Creative Commons CC BY 4.0

* - Corresponding Author

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