Weld Mesh

Use the Weld Mesh command to model welds with 1D elements when your CAD geometry contains weld features. Weld Mesh uses the weld features in the associated CAD part to automatically determine the locations at which to create the 1D elements to model the welds.

Note:

You must have the associated CAD part that contains the weld features loaded before you use the Weld Mesh command.

Resistance Spot Welds

Resistance spot welds are used to connect multiple layers of sheet metal. The original spot weld locations (weld points) are projected onto the face, and the software creates weld elements (Rigid Link or Spring type elements) between the projection points.

• The original spot welds are first projected to the first body using a normal to the surface projection.

• The second and subsequent bodies are projections of the first body's locations, again projected normal to the first body's surface.

• The software treats the weld points as mesh points. This means that the software honors the weld points during face meshing.

Weld Element Process

You can get spot locations for each layer of metal faces from the weld feature. The software creates mesh points at the spot locations defined in the weld feature. The software sorts face pairs from top to middle, and middle to bottom. It then creates the recipe for the weld mesh recipe. Finally, the software creates 1D elements between the projection points for each pair of faces.

Resistance Seam Welds

Resistance seam welds connect multiple layers of sheet metal, just as resistance spot welds do. They differ from resistance spot welds in that the weld geometry is modeled by curve. Points on the original curves are projected on to the faces, and weld elements (Rigid Link/Spring) are created between the projected points.

• Resistance seam welds connect multiple layers of sheet metal, just as spot welds do. They differ from spot welds in that the weld geometry is modeled by a curve. As with spot welds, the points on the "original" curves are projected to the first body's surface, and then the resulting projection points are projected to each subsequent body.

• The software creates the rigid elements between each pair of points (point on top face and the corresponding point on the bottom face).

• The software treats the weld points as mesh points. This means that the software honors the weld points during face meshing.

Where do I find it?

Choose Home tab→Connections group→Weld Mesh .

Quick links

Command reference

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Weld Mesh, Simcenter 3D 2021.1 Series

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