Mathematical modelling of the effect of the surface relief of specimens on the localisation of plastic deformation in the pressure welding zone

Abstract

The finite element method is used to analyse the special features of plastic deformation in the weld zone of dissimilar creep-resisting materials produced by pressure welding in the presence of a relief of variable depth on the welded surfaces. The experimental results show that the weld quality can be improved by selecting a larger depth of the relief away from the edges of the welded surfaces.

Key words:

• pressure welding
• finite element analysis
• welded surface relief

Funding

Investigations were carried out in accordance with: RFFI [grant number 14-08-97061]; RFFI [grant number 13-08-12200]; RNF [grant number 14-13-00982].