Lifton, Joseph (2022) Internal measurement of media sliding velocity in a stream finishing bowl. The International Journey of Advanced Manufacturing Technology, 120, 4681-4691. (doi:10.1007/s00170-022-09053-y).
Abstract
Recently, mass finishing processes have attracted renewed interests due to their feasibility on complex and rough additively manufactured components. In mass finishing, media sliding velocity (V) is a key parameter that directly influences material removal rate from a component. Experimental measurements of V are crucial in validating simulation models and improving fundamental process understanding. Thus far, measurement attempts have been conducted externally — with the image acquisition system located outside of the mass finishing bowl. In this work, a submersible media tracker is developed for internal V measurements within a stream finishing bowl. The velocity estimation results from two data post-processing methods are compared: (i) manual frame-by-frame tracking and (ii) particle image velocimetry (PIV). It is shown that with an appropriate evaluation frame rate, internal measurements could reliably estimate local media velocities at various locations within the stream finishing bowl. Media sliding velocities are most sensitive to changes in relative media approach angle in stream finishing. The velocity measurement results aid in fundamental process understanding and are useful in validating process simulation models.
This record has no associated files available for download.
More information
Identifiers
Catalogue record
Export record
Altmetrics
Contributors
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.