Evaluation of Friction Coefficient During Single Point Incremental Forming of Commercial Purity Aluminium Alloy

Abstract:

Single point incremental forming (SPIF) is a die-less forming technique well-suited for rapid prototyping and low-volume production. The deformation mechanism differs significantly from conventional metal forming processes, which contribute to enhanced formability. On this basis, the coefficient of friction (COF) derived from the contact at the interface between the tool and the sheet is a critical aspect during forming. This study is devoted to discover the effect of critical process parameters on the friction evolution in SPIF using a finite element analysis after model validation. Results ndicated that increasing overall step size, wall angle, and tool diameter contribute significantly to the increase of the COF. In addition, when the geometry benchmark was designed with ψ = 70◦, the the friction indicator μ∗ attains 0.63.

• Periodical: Advances in Science and Technology (Volume 181)
• Pages: 205-213
• DOI: https://doi.org/10.4028/p-0TmK1T
• Online since: August 2026
• Authors: Marwen Habbachi*, Attila Baksa
• Keywords: Aluminum Alloy Al1050, Coefficient of Friction (CoF), Finite Element Analysis, Single Point Incremental Forming, Step Size, Wall Thickness

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