Spot Weld checks identify problems with spot welds in the model and shows them in the report.

The identified problems in spot welds are highlighted using a cross-hair in the images.

  1. In the Comparison Browser, right-click and select Check > Spotweld from the context menu.
    The Spotweld dialog opens.
  2. Select Import Type for Base Model.
    • Assembly (CAD assembly files: UG Assembly, CATProduct, JT Assembly‚Ķ)
    • CAD (Refer Config / CAD files)
    • FE (Nastran, PAM-CRASH, Radioss, Abaqus, OptiStruct, HyperMesh)
    • Multiple Assembly (Multiple CAD assembly files)
    • Spot Files (Not applicable)
    • FE Files (direct file selection)
    • Mixed Import (folder contains CAD and FE files)
  3. Select a datatype.
    Respective data types will be listed.
  4. Click the folder icon and navigate to the model to import (Folder/File selections).
    The folder or the selected location must contain the spot weld file. The spot weld file type must be set in the config file.

    Figure 1.
  5. In the Angle field, enter a value between 15 to 30 degrees for feature recognition.
  6. In the Report Path field, navigate to the directory where the reports generated by the Model Verification tool will be stored.
  7. In the Project Name field, enter a name for the project.
  8. In the Slide Number field, enter a starting number of the slides to use in the PowerPoint report.
  9. Choose a method for running the model.
    • Choose Interactive to run the model in the same HyperMesh session.
    • Choose Background to launch a new HyperMesh session in batch mode.
  10. The Processes drop-down list becomes active when you select the Background option and it also depends on the processor.
    The Model Verification tool launches as many hmbatch processes selected.
    • Choose Check to execute only the comparison without the report generation.
    • Choose Report to generate only the Reports (Check executed previously).
    • Choose Both to perform the comparison report generation sequentially.
  11. Click Run to execute the function.
  12. Click Stop to stop the operation.
    This closes front and background HyperMesh sessions.
  13. Click View Report to display the Summary PowerPoint report.

    Figure 2. PowerPoint Summary . (Stored in Report Path)

    Figure 3. PowerPoint Detailed Report. (Stored in Report Path)


Overview of the PowerPoint report generated from the Spot Weld check.

A PowerPoint report is separated into several sections.
Report Header
Project name, assembly name, and slide number.
Assembly Picture
Image of the components that have spot weld issues.
H3D Image
Section can be viewed in the HyperView Player, and shows an H3D image shows the FE model with the spot weld marked with Cross Hairs.
Issue Details
Details of components which have spot weld issues.
User Review Section
Used to add additional information when exchanging information with designers/engineers.
Additional Info
Occurrences of the issue shown in the current slide. The number of instances show the number of occurrences of the issue.

Supported Spotweld Checks

Overview of the spotweld checks available to perform in the model.

Detects the spot welds which are too close to each other. The closeness tolerance is used as the criteria for deciding if two spot welds are considered as too close.

Figure 4.
Detects the spot welds in which the distance between the spot weld location and the connected components lie outside the given maximum and minimum gap limits.

Figure 5.
Single Layer
Detects the spot welds which are connected to only one part. The second part is missing from the spot weld definition.

Figure 6.
Multiple Layers
Detects the spot welds which are connected to more parts than what is specified as the threshold number for multiple parts.

Figure 7.
HyperMesh Issues
Detects the spot welds that failed during realization.

Figure 8.
Non-Parallel Flanges
Detects the spot welds that are connecting the non-parallel flanges. Flanges are said to be non-parallel if there is a gap or step of the flanges diverge.

Figure 9.
Incorrect Location
The Model Verifications creates feature lines internally to check the distance between the connector and the feature line. When the distance between the connector and feature line is less that the specified tolerance, the location of the connector is said to be incorrect. The feature angle used to create feature lines is specified in the Feature Angle field.

Figure 10.
Few Connections
Detects the possible locations where the spot welds may be missing. This detection is done based on the adjacent spot welds in that area.

Figure 11.
Flange Gap
Detects if the gap between the flanges is within the minimum and maximum limit of the average of the component thicknesses being connected by the weld.

Figure 12.
Spotweld Intersection
Detects if a spot weld has an intersection with an unconnected component.

Figure 13.
Spotweld on Fillet
Detects if any spot weld is located on fillet features.

Figure 14.
Reflect Spotweld
Detects if any spot weld can be realized on reflecting its location about a plane defined by you.

Figure 15.