Additive Manufacturing Inspection

Additive Manufacturing Inspection with 
Industrial CT X-Ray technology

Additive Manufacturing can be low cost and fast, but it can also result in voids, misprints, residual powder, and other sub-surface defects if things don't go as planned.


Industrial CT is used to inspect interior features to verify printing turned out as designed. Verify coolant passages are clear, for example.  A highly utilized service is overlaying the actual CAD model with your part which identifies deviations both INTERNALLY and externally.

Part-to-CAD Comparison

Haynes 282
Rocket Chamber

Affirm the as-built part matches the as-designed part.

After we CT scan the part, the CT scan results are over-laid with the CAD model. A color-coded 3D model is generated that shows discrepancies between the part and the CAD for both internal and external features.

Trapped Powder

Missed Print Layer


Aluminum printed part

CT is used to inspect metal additively manufacturered parts for residual powder and internal features. Advanced analysis using Volume Graphics is used to quantify porosity and perform CAD-to-part comparisons.  X-ray technology is the surest way to understand your part.


CT scan post processed with Volume Graphics to show voids and residual trapped powder in the actual finished part

Hidden volumes of this actual AM part are shown as surfaced elements.  Confirmation of as-built vs as-designed can be made.  

CT Scan is virtually sliced, with trapped powder highlighted

Trapped powder is shown with false color, in 3D

CT Scan is virtually sliced, with missed print layer voids highlighted

Voiding is shown in false color, in 3D, in actual part

Internal Part-to-CAD

Additive Manufactured

Chemical Reactor

Nominal-to-actual analysis and tolerance verification improves quality control and prevents costly defects. Color coded results allow us to quantify wall thickness for material as well as non-material channel blockages for gas or fluids.  X-ray technology via Computed Tomography, coupled with CAD allows Delphi to overlay the Part and CAD models. 

Wall Thickness Analysis

Wall Thickness Analysis measures channel dimensions & color codes the walls based on thickness.

Medical Implant Analysis

Additive Manufactured

Hip Cup

With Volume Graphics, we can run analysis on the CT scan data including:

  • determine tissue interface porous material ratios

  • demonstrate traditional mean-intercept method

  • determine strut thicknesses

  • determine pore sizes

  • Nominal/Actual analysis

Learn more about the use of CT scan technology in the Quality Magazine article: Industrial CT for Use in Additive Manufacturing Inspection 

Delphi Precision Imaging

8441 154th Ave NE, Suite 120

Redmond, WA 98052


Phone: 425-497-9729



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