About Weld Features

Before you begin with the creation of weld features, you should be familiar with the concepts described in this section.

This page discusses:

3D Design

Important: The information defined in the 3D Design tab of a weld is not taken into account for the manufacturing. Verify yourself the relevance of the information.

Supports

A weld feature is defined by supports. These supports are sets of faces geometrically connected or not.

Two supports at least are if required to define the weld and a linear intersection must exist between these two supports. The linear intersection is named weld design.

Guide and Seam

To each weld domain corresponds a unique seam. According to the guide continuity, the following cases are taken into account:

  • For the continuous G1 domain, the seam is built from the weld guide and the seam profile.





  • For the discontinuous G1 domain, the seam is divided in unitary seams as many as continuous G1 domain.



    Unitary seams are trimmed from each other.



When the weld guide is closed, the seam is also closed.

Extrapolation

A weld can be extrapolated, but only for an opened mono-domain and a mono-guide.

The weld is trimmed by the normal plane perpendicular to the guide, at the point intersecting the guide and the side face of the plate.





The preview displays white dots indicating the extrapolation limits.



The extrapolation allows you to extend the seam length outside the plate.



Limits

A weld without limits has natural borders corresponding to the extremity planes of the weld guide.

When these natural borders do not fit the user's needs, surface limits can be defined for the weld from Generative Shape Design surfaces. The limit you select must consist of a single planar geometric element.

Important: A weld can be trimmed by another weld only when these welds belong to the same bundle of welds.
  • The surface limits can intersect the weld guide only once.
  • The surface limits can be predefined or created in context.

From the previous example in the extrapolation section, the seam has been trimmed by planes tangent to the side faces of the plate.



Ensure that the limit orientations must be matter side oriented. To do this, click the green dot and then, click Flip in the context toolbar.



A weld can be trimmed or extended to complete another weld shape of the same type, but not necessarily with the same specifications.

Preparation

A groove weld requires to prepare welded 3D shapes before the welding process.

The preparation is automatically taken into account during the update operation, and the weld impact icon appears in the tree on the body of prepared 3D shapes.

Important: The user-defined weld allows you to create your own design that will be applied for the preparation.

Manufacturing

The information defined in the Manufacturing tab of weld creation dialog boxes is not connected with your 3D design. You must verify the relevance of the information.

Broad Root Face

The Broad Root Face is only relevant to groove weld.

Two considerations of the Broad Root Face exist in a groove weld:

  • Without Broad Root Face, the groove weld thickness is equal to the plate thicknesses



  • With Broad Root Face, the groove weld thickness is less than the plate thicknesses, the Broad Root Face is the contact surface between the two plates, which is not affected by the groove weld.



For more information, see Creating a V-Butt Weld (Prepared Parts)and Creating a Bevel-Butt Weld (Prepared Parts).

Shape

The shape defines the weld seam shape representation in drafting context. The shape representations available are:

Flat
Convex
Concave
Flush
Smooth

Multiplicity

The multiplicity defines if the weld representation is single or double.

Lifecycle

When editing a weld feature, affected 3D shape representations must be in session otherwise the weld feature will be not updated.

The weld feature deletion removes the preparation and the seam.

Important:
  • A weld bundle must be emptied before its deletion.
  • It is possible to delete weld features even if the impacted representations are not opened in the session. However the related weld impacts will not be deleted and will be in error if updated again.