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

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

Abstract

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.

Citation

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. https://doi.org/10.1016/j.triboint.2018.11.002

• 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
• Electronic ISSN: 1879-2464
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 131
• Pages: 353-362
• DOI: https://doi.org/10.1016/j.triboint.2018.11.002
• Keywords: Mechanical Engineering; Mechanics of Materials; Surfaces, Coatings and Films; Surfaces and Interfaces
• Public URL: https://nottingham-repository.worktribe.com/output/1314065
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0301679X18305425?via%3Dihub