the qualification process
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The indexed assemblies are then subjected to dimensional inspection, again using the video-probe cmm. First, significant machined features of the individual components are measured [in this case the liquid tip I.D., O.D. and tip protrusion and the air cap I.D. which forms the outer edge of the annulus]. As can be seen, the individual components appear to be
machined within reasonably close tolerances: |
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As assemblies however,
composite features known to be critical for spray performance [e.g.-annular gap, orifice-to-annulus concentricity
and gas orifice bolt center to annulus O.D.] are found to be highly variable: |
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| back to atomizer qualification | back to step 1 | to step 3 | |