Development of geometry of forming tools for extrusion of strip sheet by SPD process

4th International Conference Recent Trends in Structural Materials

Rusz, S.^1 ; Salajka, M.^1 ; Dugan, J.^2 ; Hiler, O.^1 ; Bouta, J.^1 ; Pastrák, M.^1 ; Švec, J.^1

VSB - Technical University of Ostrava, Faculty of Mechanical Engineering, Czech Republic^1

COMTES FHT A. S., Prmyslová 995, Dobany

334 41, Czech Republic^2

关键词: Fine grain structure;    Inclination angles;    Material deformation;    Metallic material;    Paper analysis;    Severe plastic deformations;    Technical universities;    Ultimate strength;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/179/1/012061/pdf
DOI  :  10.1088/1757-899X/179/1/012061

来源: IOP

【 摘 要 】

On VSB -Technical University of Ostrava developed a method that uses the principle of severe plastic deformation to refine the structure and enhance mechanical properties of sheet metal strips. The greatest importance in practice represents an increase in yield strength and ultimate strength of sheet metal strips. The DRECE method (Dual Rolls Equal Channel Extrusion) is a newly developed method. Severe plastic deformation results in a high degree of the material deformation. The method can be used to produce metallic materials with a very fine grain structure. The paper analyses the effects of the values of angles of the newly developed forming tools on the achievement of mechanical properties in selected carbon steels by SPD process. The one type of steels (Ck55) was verified experimentally. Experiments were performed on the sheet metal strip with dimensions 58 (width) 2 (thickness) 1000 (length) mm with different inclination angle α.