PSI - Issue 56

Sai Kumar Balla et al. / Procedia Structural Integrity 56 (2024) 41–48 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

45

5

S a (µm)

22.74

9.05

11.25

3.98

0.256

As-built

Sand blasted

Wire EDM

Chemical anodizing

Micro milling

Fig. 4. 3D surface topography images of adopted post processing techniques compared with as-built AlSi12 samples

3D topography of the post processed surfaces is compared with as-built surface condition and it clearly indicates in decreasing the surface roughness by reducing peak heights. In sandblasting, the sand bead particles are forced on