Surface roughness measurement of additive manufactured samples using angular speckle correlation

• Main Authors: Dev, Kapil, A. S., Guru Prasad, H, Aswin, P, Prabhathan, Chan, Kelvin H. K., Matham, Murukeshan Vadakke
• Other Authors: Asundi, Anand K.
• Format: Article
• Language: English
• Published: 2019
• Subjects: Additive Manufacturing; Angular Speckle Correlation; Engineering::Mechanical engineering
• Online Access: https://hdl.handle.net/10356/105708; http://hdl.handle.net/10220/49562
• Institution: Nanyang Technological University

A speckle pattern is a direct fingerprint of surface height variation on the sample. In this paper, angular speckle correlation technique is applied to estimate surface roughness Ra of an additive manufactured sample with different surface roughness Ra values varying from 5μm to 20μm. Feasibility st...