Modeling of the stress-strain state for a disk and a shaft from different Ni-based alloys during welding under shear pressing

Open School-Conference of NIS Countries Ultrafine Grained and Nanostructured Materials

Akhunova, A.K.^1,2 ; Dmitriev, S.V.^1,3 ; Valitov, V.A.^1,4 ; Galieva, E.V.^1

Institute for Metals Superplasticity Problems, Russian Academy of Sciences, 39 Khalturin st., Ufa

450001, Russia^1

Ufa State Aviation Technical University, 12 K. Marx st., Ufa

450008, Russia^2

National Research Tomsk State University, 36 Lenin Ave., Tomsk

634050, Russia^3

Bashkir State University, 32 Validy Str., Ufa

450076, Russia^4

关键词: Cone angle;    Cone shape;    Heat resistant;    Ni based alloy;    Single components;    Stress strain state;    Two-component;    Welding zones;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/447/1/012049/pdf
DOI  :  10.1088/1757-899X/447/1/012049

来源: IOP

【 摘 要 】

The stress-strain state in a disk and a shaft made of different heat-resistant Ni-based alloys during pressure welding is analyzed by the finite element method. The disk and the shaft have a complimentary cone shape, and during welding the shaft is inserted into the disk or in-serted and simultaneously rotated. In the first case, a single component shear deformation is re-alized, while in the second case, one has a two-component shear deformation in the welding zone. The cone angle of 5° can be recommended, because in this case the plastic deformation in the welding zone is about 3%, which is typically sufficient for obtaining a reliable joint.