Study on optimal wedge angle in surface plastic deformation of flat metal sheets
DOI:
https://doi.org/10.56097/binhduonguniversityjournalofscienceandtechnology.v8i4.369Keywords:
urface hardening; surface layer, stress–strain state; rectangular plate; wedgeshaped plate; surface plastic deformation.Abstract
In the material manufacturing industry, the study of optimal material processing
methods is always a top priority. Using 3D design software (SolidWorks 2019) and
computational simulation tools (ANSYS Workbench 19.2), a model of the surface
hardening process for a cylindrical workpiece using flat tools was developed to calculate
and evaluate the stress–strain state (SSS) of the workpiece in the deformation zone, as well
as the residual stresses in the finished part. Based on the analysis of finite element
simulation results, a reasonable value of the wedge angle of the flat tool was determined to
be 45°. At this angle, the maximum transient stress during the hardening process is lower
than the material’s yield strength, thereby ensuring that the hardening does not cause
surface damage to the workpiece, while also achieving a uniform distribution of residual
stresses on the surface.
