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The University of Southampton

Research project: Assessment of complex electron beam textured rough surfaces

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This study details the development of assessment procedures for characterising complex rough surfaces.  The surfaces to be assessed are textured by a new electron beam direct writing process, Surfi-Sculpt®, and create roughness values beyond the typical engineering range of average surface roughness i.e. Ra = 0.1-0.5 μm

Complex intricate surface modifications can be produced including the manufacture of protrusions or pits ranging from a few tens of microns to several millimetres high or deep (typical range of 50 μm - 5mm).  A thorough review and screening of existing techniques found no commonly accepted surface characterisation method for such grossly textured surfaces.  However, optical (laser triangulation), thermography, scanning microscopy and microfocus-computed tomography initially showed some of the potential and are being further explored to characterise the EB sculpted surfaces.  A two-step methodology is being developed for simple to complex geometric shapes that mimic or are scuplted features.  This methodology is suitable to assess single and arrays of features.  The novelty of the research includes new measurement procedures based on rotating and tilting the surfaces and the development of data stitching software for the optical measurement technology.

Conferences and events associated with this project:

Example of Surfi-Sculpt
Example of Surfi-Sculpt
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