Hot-forming tools are subjected to high thermal and mechanical stresses during their application. Therefore, a suitable design of the tool die is important ensure long life. For this purpose, numerical simulations can be used calculate occurring temperature development in course stroke or over several forging cycles. The aim research investigate effect different radii on resulting lower forming...

• The hot forging process is the most common method in forming technologies. durability of tools has an effect on total cost up to 30%. Identification current failures mechanisms can assist select suitable treatment method. Treatment methods prolong life cycle tools. This article presents a critical overview failure and applied improve surface integrity die used process. knowledge from this stu...