RESIDUAL STRESS IN ADDITIVE MANUFACTURED TITANIUM COMPONENTS
Additive manufacturing is a burgeoning sector where managing residual stress and defects are the major challenges. Quantifying residual stress and demonstrating structural integrity is of crucial importance before 3-D printed structures can be accepted in industry.
StressMap has been working with Cranfield University to investigate residual stresses associated with Wire Arc Additive Manufacturing (WAAM).
The grain size in these materials is particularly large due to the nature of the process which present challenges for non-destructive techniques such as X-Ray and neutron diffraction. The contour method is ideal for measuring these components as it is insensitive to microstructural variations (grain size, texture, anisotropy).