Multi-scale analysis of engineering surfaces

✍ Scribed by X. Chen; J. Raja; S. Simanapalli

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 545 KB
• Volume: 35
• Category: Article
• ISSN: 0890-6955
• DOI: 10.1016/0890-6955(94)p2377-r

✦ Synopsis

Conventional surface characterization techniques involving random process analysis are limited in characterizing multiscale surface features relevant to manufacturing processes and functions. This paper introduces a novel technique for multi-scale characterization of engineering surfaces by applying wavelet lxansform. The main advantages of wavelet transform over other existing signal processing techniques are its space-frequency localization and multi-scale view of the components of a signal. Utilizing these properties of wavelet transform, we can effectively apply multi-channel filter banks to the surface data and link the manufacturing and functional aspects of a surface with its multi-scale features. Surfaces produced by typical manufacturing processes are analyzed using wavelet transform, and the usefulness of wavelet transform in the multi-scale analysis of engineering surfaces is demonstrated. I.