Bore hole inspection and 3D metrology

Measuring System: BoreInspect
Keywords: bores, cylinders, valves, bore ID, aerospace, automotive, precision machining

Typical bore measurement requirements

Internal surfaces of bore holes in high-precision sectors need to adhere to strict specifications in terms of:

  • Dimensions (GD&T)
  • Straightness, cylindricity, conicity, ovality, taper, distortion, runout
  • Inner features such as steps, threads, cavities, chambers, cross-holes, grooves, and O-rings
  • Absence or low incidence of defects
  • Roughness characteristics.

Bore measurement using BoreInspect

Novacam’s BoreInspect greatly speeds up the task of high-precision bore inspection and facilitates automation. This modular non-contact inspection system features a rotational scanner with a small-diameter probe that easily enters bores to acquire their inner 3D topography directly and down to the micron.

Automated or in-lab inspection

With BoreInspect, surface acquisition and the subsequent 2D/3D characterization (topography), roughness measurement, and defect detection are easily automated and carried out right on the shop or manufacturing plant floor, bringing high-precision manufacturers significant savings.

  • Automation is supported by system capabilities such as datum alignment, automated pass/fail reporting, and exportable reports
  • Bore ID data may be evaluated with respect to user-defined criteria (GD&T, inner feature specifications, roughness, and defect inspection), or compared to a reference CAD model.

For in-lab inspection, accompanying metrology software on a PC (e.g., PolyWorksTM) enables full viewing and analysis of the acquired point cloud as a 3D interactive map. Views such as deviation maps provide key insight into bore machining processes.

Technology that enables versatility

The BoreInspect system is based on low-coherence interferometry technology. It is also a modular and fiber-based optical system; its small-sized rotational scanner is connected to the signal-processing interferometric detector with an optical fiber that can be hundreds of meters long. As such, the rotational scanner is easily integrated as either a robot arm end-effector or as a 3D vision component in automated or semi-automated systems on the plant floor.

See a more complete list of advantages of Novacam’s fiber-based LCI systems.

Related links

Download application note “Measuring Bores” [4 pages, PDF, 0.9 MB] for more details on this application

 Contact us or request free sample analysis to see if BoreInspect is suitable for your application