Influence of Process Parameters on Forming Forces in Single Point Incremental Forming of Commercially Pure Titanium

Abstract:

Traditional sheet metal forming processes necessitate specialized tooling and costly dies to manufacture sheet metal components, leading to time-consuming and uneconomical procedures that are particularly unsuitable for batch production. However, Single Point Incremental Forming (SPIF) has emerged as a cost-effective solution for rapid prototyping, customization, and batch production. To achieve this, precise estimation of the incremental sheet forming force is essential, necessitating the design of dedicated equipment and the adaptation of machinery. This study explores the impact of several process parameters on the forces involved in SPIF to investigate their effects. Specifically, the focus is on analyzing the influence of step size, forming angle, and spindle speed on axial peak forces for Cp-Ti grade sheets. The results reveal that the maximum forming force increases with larger step downs, while a decrease in forming force is observed for smaller step sizes. Additionally, higher forming angles result in increased friction between the tool and the blank, leading to elevated forming temperatures. The evolution of forming force, which varies under different bending conditions, could serve as an indicator to prevent sheet failure. The current provides valuable insights into optimizing SPIF processes by understanding the relationship between process parameters and forming forces, facilitating more efficient and reliable production of sheet metal components.

• Periodical: Key Engineering Materials (Volume 1012)
• Pages: 19-28
• DOI: https://doi.org/10.4028/p-kAncM0
• Online since: May 2025
• Authors: Rohit Kumar, Arshpreet Singh, Gulshan Kumar*
• Keywords: CNC, Commercially Pure Titanium, Forming Forces, Process Parameters, SPIF

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