Ring test
The ring test checks transverse elongation and formability of sheet metal under radial loading. It reveals anisotropic material behavior.
Physicochemical Mechanism of Action
A ring is formed from sheet metal and loaded radially, causing elongation. The transverse strain is measured and shows the material's anisotropic behavior in different directions.
Metallurgical Relevance & Welding Risks
The ring test helps select suitable materials for specific applications. Inadequate elongation can cause cracking or deformation, compromising safety and service life.
Workshop Practice & Procedures
For the ring test, a sheet metal blank is formed into a ring. The ring is then loaded radially, e.g., by a drawing machine. The transverse strain is measured and compared with specific requirements. If values are inadequate, the material or manufacturing process should be reviewed.