Presented by: Karl Hautekiet, Head of Global Business Development, Grindosonic
Presentation description:
Applying measurement techniques used in traditional manufacturing are insufficient to certify the processes of Additive Manufacturing (AM) and to guarantee product quality. To certify AM processes and ensure a constant part quality, additional measurement techniques must be selected to cover the full range of typical defects such as intergranular porosity and connectivity, loose powder, lack of fusion, dissipative micro defects, oxidation and material non-uniformity.
GrindoSonic® has developed the Impulse Excitation Technique. By applying a single tap, we make a material (test specimen or finished product) resonate. The physical data of this resonance – frequencies and damping – are measured. Accurate measurement of changes in resonance frequencies and damping values will reveal variations across the entire build volume. Frequency changes are highly correlated to the intergranular pores, the sintering quality and oxidation, whereas the damping values indicate the presence of dissipative microdefects, loose powder and defects related to lack of fusion.