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

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.