Assessing Formability Behavior of High-Strength Thermal Resistant (HSTR) Alloys

The HSTR metals are developed to strengthen the components at rigorous services such as high heat and wear zones. Applications of high-strength metal alloys in the sheet market have wide use in automotive, aerospace, energy production, petrochemical refining, defense, electronics, and industrial applications. To form the desired shape from these materials is difficult at room temperature. The demand for incremental sheet metal forming is global with various methods employed to achieve desired shapes based on customized products. This paper explored the formability behavior of high-strength alloys on their incremental sheet metal forming processes. The characterization of formability tests enhanced the economic production feasibility of these alloys. Remarkably, incremental sheet metal forming is emphasized due to its cost-effectiveness in producing customized and small lots products. Three high-strength materials e.g. stainless steel grade SS304, nickel grade Ni200, and titanium grade TiGr-2 are taken for the study. The ultimate tensile test confirms that the SS304 has higher formability than others.