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Effect of tooling surface on friction conditions in cold forging of an aluminum alloy

Hu, Chengliang; Ding, Tairan; Ou, Hengan; Zhao, Zhen


Chengliang Hu

Tairan Ding

Associate Professor

Zhen Zhao


Friction during cold forging of aluminum was analyzed with a ring with boss compression test (RCT-B) and an optimum spike forging test (O-SFT). The tool surface was treated with three methods: flat grinding, bead blasting, and lapping-plus-polishing. With the RCT-B test, friction factors for oil lubrication and dry conditions were determined by using platens after bead blasting and lapping-plus-polishing. Because of friction anisotropy, the factors could not be determined directly with flat ground platens because the data was beyond the range of calibration curves. Anisotropic friction was also observed with the O-SFT method. Finite element simulations were performed to better understand the anisotropic friction results.


Hu, C., Ding, T., Ou, H., & Zhao, Z. (2019). Effect of tooling surface on friction conditions in cold forging of an aluminum alloy. Tribology International, 131, 353-362.

Journal Article Type Article
Acceptance Date Nov 6, 2018
Online Publication Date Nov 9, 2018
Publication Date Mar 1, 2019
Deposit Date Nov 27, 2018
Journal Tribology International
Print ISSN 0301-679X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 131
Pages 353-362
Keywords Mechanical Engineering; Mechanics of Materials; Surfaces, Coatings and Films; Surfaces and Interfaces
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