GOM Inspect Features

What´s new in the current version of GOM Software 2019?

Smart Teach

If the CAD or single elements change, the measurement positions are automatically updated with “Smart Teach”. In addition, the user is much more supported in achieving a stable measuring sequence in a shorter time by advanced display options of the project status. This is also further emphasized by the introduction of scanning templates for setting application-specific parameters prior to the measuring procedure. For complex or shiny surfaces that require a specific measuring angle, these improvements lead to a significant increase in efficiency.

Surface Inspection

If a defect is detected by several tools, the found defects can be merged into one representation. This means that the audit score no longer depends on the number of tools used, but on the quality of the part. In addition, the new software offers the possibility of testing a part against a limit sample. This enables a simple actual-actual comparison, and known, accepted defects are not displayed in the result representation. With advanced functions for the defect analysis, there is now also a convenient way to find and analyze skid lines, expanding the application range of this solution.

Virtual Clamping

With a new module that supplements the ATOS and GOM Inspect Professional software packages, sheet metal and injection-molded parts can be virtually clamped and thus measured without complex clamping devices. An innovative, FEM-based algorithm makes it possible to compute the constrained state of the part. This virtual clamping procedure is fully integrated into the GOM workflow; there is no need to leave the software interface.

Top Features

Parametric Inspection

The GOM software is based on a parametric concept, which forms the underlying foundation for every function. This parametric approach ensures that all process steps are traceable, thus guaranteeing process reliability for measuring results and reports.

Teaching By Doing

With Teaching by Doing, any completed evaluation can be easily applied to two or more parts. Thanks to the parametric design, the software automatically stores each individual inspection step. There is no difference between single and multiple evaluations. All evaluation steps can be operated without scripting, previous planning or user intervention, so that no time is spent on programming.

Trend, SPC and Deformation Analysis

The underlying parametric concept of the GOM software enables a trend analysis for multiple evaluations, for example, in statistical process control (SPC) or for deformation analysis. This enables full-field evaluation of several parts or stages within a single project and offers functionalities for determining statistical analysis values such as Cp, Cpk, Pp, Ppk, Min, Max, Avg and Sigma.

FTA / PMI

In concepts such as PLM (Product Lifecycle Management), as much process and part information as possible is gathered in the form of PMI (Product Manufacturing Information) to ensure a comprehensive and company-wide management and control of production chains. GOM supports interfaces for digital transfers of inspection features. Quality criteria and datum systems that were implemented by a semantic construction into the CAD can be transferred digitally and evaluated in a context-sensitive way. Since the inspection plan is generated directly during the CAD import, additional work-intensive programming is not necessary.

Digital Assembly

Projects with Multiple Parts

In digital assembly, several components can be virtually aligned to each other. The inspection is based on parts. This feature increases the flexibility, e.g. for the alignment of components as well as for the analysis of gap and flush or material thickness.

Scripting

The concept of scripting bases on a command recorder, which can record all executed operations in the software. The software saves the recording as Python script. That way, you can execute the recording repeatedly. By editing the recorded script, you can adapt the script to other tasks or generalize it. The programming is based on modification or combination of recordings.

Inspection Features

Nominal-Actual Comparison

The computed polygon meshes describe freeform surfaces and standard geometries. These can be verified by comparing surfaces with a technical drawing or directly with a CAD data set. A 3D analysis of surfaces as well as a 2D analysis of sections or points can be implemented in the software. CAD-based generation of geometric elements such as lines, planes, circles or cylinders is also possible.

CAD Import

Neutral CAD formats such as IGES, JT Open and STEP as well as native formats like CATIA, NX, Solidworks and Pro/E can be imported into GOM Inspect Professional at no extra costs. The individual data formats are imported via drag & drop and are automatically identified and assigned by the software.

Polygon Meshes from Point Clouds

3D meshes for parts and components are calculated from 3D point clouds for visualization, simulation, surface reconstruction and nominal-actual comparison. The meshes are also suited for virtual assembly based on measurements from different sources. The precise polygon meshes can be exported to several standard formats such as STL, G3D, JT Open, ASCII and PLY. Polygon meshes can be exported in STL format for applications such as 3D printing.

3D Mesh Processing

Polygon meshes can be smoothed, thinned and refined. In addition, holes in the mesh can be filled and curvatures can be extracted. The mesh is processed using curvature-based algorithms and tolerances. The software provides the user with a live preview of each processing step. Furthermore, a golden mesh can be determined by finding the best mesh or calculating an average mesh.

Point-Based Inspection

The evaluation function can also be used for point clouds. This includes, for example, measurement of distances between individual points and a comparison of points with the CAD model. Construction functions can then be applied to create standard geometries based on several points. This allows an analysis of dimensional accuracy or a GD&T analysis on the generated elements, including flatness, cylindricity or positional accuracy.

Curve-Based Inspection

GOM Inspect Professional closes the gap between point-based and surface-based inspection. Full-field digitized data is used to apply construction functions for curves and to visualize their individual properties. Edge curves can, for example, be captured, radii and character lines analyzed and spline curves created. Flush & gap analysis is another element provided in curve-based inspection.

Motion and Deformation Analysis

Analysis of motion and deformation is carried out using a component concept. Points are divided into coherent groups and defined as components. Transformations or corrections to rigid body movements can then be calculated for these components. The 6DoF analysis serves to determine the translation and rotation movements in all directions. Vector fields then help to visualize point movements and deformation over time.

Alignments

The GOM 3D software includes all standard alignment functions. These include: RPS alignment, hierarchical alignment based on geometric elements, alignment in a local coordinate system, alignment by reference points as well as various best-fit methods, such as global best-fit and local best-fit. Customers can also use their own specific alignments such as “Balanced beam” or “Equalized nested”, for example, for turbine blades.

Inspection of Surface Defects

Optical metrology allows a series-accompanying and reproducible evaluation of surface defects. The results are objective and available in a shorter time than with the conventional method of the grind stone. For the surface defect map to match the form of the part directly, the GOM Inspect software makes an inspection of surface defects even in curved directions possible. Furthermore, the software computes the direction of the surface normals automatically. Only one defect map is required to inspect large areas that are to be analyzed in the same direction according to the inspection plan.

Reporting

The reporting module allows creating reports including snapshots, images, tables, diagrams, text and graphics. The results can be visualized and edited in the user interface and then exported as a PDF document. Templates are reusable and each scene saved in a report can be restored in the 3D window.

Industry-Specific Applications

Airfoil Inspection

GOM Inspect Professional combines general inspection functions with application-specific evaluations. Native quality control functionality for the analysis of airfoils and turbine blades include: inspection of profile mean line, profile centroid and profile thickness of turbine blades based on 2D sections. The profile’s center of gravity, radii and twist can also be calculated.

CT Import

Scanned volume models can be directly visualized and evaluated in the software. Volume data captured by computer tomographs can be imported via drag & drop in common formats (.vgi, .vgl, .pcr, .exv, .rek) or as raw data and can be directly evaluated. In addition, the different materials of a scanned object can be imported as separate surface meshes. Besides separately scanned objects, the software also allows importing data sets including several objects that were scanned with one CT simultaneously. Up to 32 objects can be imported as individual meshes at once. The GOM Inspect software offers different polygonization modes for importing data.

GD&T Analysis

Corresponding GD&T elements are, for example, planarity, parallelism or cylindricity. Both, a standardized analysis of 2-point distances and of the maximum material requirement as well as the position tolerance in local datum and coordinate systems are possible. GOM supports ISO standards as well as ASME standards and continuously implements updates of the standards into the software.

Virtual Measuring Room (VMR)

The VMR is a virtual, yet functional representation of the real world. The VMR is a fully integrated solution, allowing for the complete reproduction of automated measurement processes. Combining the parametric inspection processes offered by GOM Inspect Professional, the VMR enables the execution of automated measurements: import of measurement plans, offline and online programming, 3D measurement simulation, collision control, safety, data capturing, inspection and reporting.

Kiosk Interface

The Kiosk Interface is a special user interface for a simplified control of the ATOS ScanBox. The software handles the entire process control and performs the measuring and inspection procedure automatically ensuring high precision and data quality: measurement parameters, data, and the operating system are protected.

Learn more about
GOM Inspect

Manage your 3D measurement workflow with GOM Inspect

  • Import measurement data and CAD data
  • Pointcloud to mesh processing
  • Inspection features
  • Reporting

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Learn more about
GOM Inspect Professional

GOM Inspect Professional differs from GOM Inspect by

  • Import of native CAD formats
  • Active parametric
  • Creating trend projects
  • Teaching by Doing

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