The Effect of Forming Half-Apex Angle on Incremental Sheet Metal Forming
The incremental sheet metal forming technology is a flexible forming technology without dedicated forming dies. The locus of the forming tool can be adjusted by correcting the numerical model of the product. The effect of forming half-apex angle on forming process with all kind of sheet material, sheet thickness and ironing ratio is researched. The limit half-apex angle is different for all kind of sheet material and thickness. The limit half-apex angle is smaller for the larger thickness of sheet metal. It will succeed in square conical box incremental forming in a single tool-path if the forming is carried out with an angle which is larger than the forming limit half-apex angle θ. The ironing ratio ψt is decided by the forming half-apex angle θ. The ironing ratio ψt varies with θ. The ironing ratio ψt is smaller when is larger.
Liangchi Zhang, Chunliang Zhang and Tielin Shi
L. R. Zhou "The Effect of Forming Half-Apex Angle on Incremental Sheet Metal Forming", Advanced Materials Research, Vols. 139-141, pp. 1514-1517, 2010