Weldments Modeling in SolidWorks

Weldment modeling in SolidWorks is a specialized toolset used for creating structural frames, fabricated components, and welded assemblies efficiently. Instead of designing individual parts and then assembling them, weldments allow you to build complex frame structures within a single part file using 2D or 3D sketches.


Key features include:

  • Structural Member Tool: Apply predefined standard profiles (like square tubes, pipes, angles, or custom profiles) to sketch segments for quick frame creation.
  • Trimming & Extending: Automatically trim or extend members to ensure accurate intersections and joints.
  • Gussets, Plates, and End Caps: Add supporting elements and finishing details directly in the weldment environment.
  • Cut List Generation: Automatically generate a cut list with member lengths, profiles, and quantities for fabrication.
  • Weld Beads & Annotations: Represent welds visually and document welding requirements in 2D drawings.

This method is widely used in industries such as fabrication, construction, automotive, and machinery design, where structural frames and welded components are common. It saves time, reduces repetitive tasks, and ensures accuracy in manufacturing documentation.


What is Weldment Modeling?

Weldment modeling in SolidWorks involves designing welded structures or assemblies using predefined profiles. It simplifies creating structural frames and generates:

  • Cut lists for manufacturing
  • Weld symbols
  • Accurate material lengths

It eliminates the need for individual part files for each member, as everything is designed in a single part file using multi-body parts. Accurate material lengths are ensured throughout the design process.


Key Features of Weldment Modeling

  • Structural Member Tool: Quickly applies standard or custom profiles.
  • Weld Beads: Adds realistic weld beads to the model for documentation and visualization.
  • Cut List Table: Automatically generates a Bill of Materials (BOM) for structural members.
  • Trims & Extends: Ensures proper joint fit between intersecting members.
  • Gussets & End Caps: Adds strengthening features to structures.

Workflow for Weldment Modeling in SolidWorks

  1. Step 1: Start a New Part
    • Open SolidWorks → File → New → Part.
    • Switch to the Weldments tab in the Command Manager.
  2. Step 2: Create a 3D Sketch
    • Use 3D Sketch to define the skeleton lines for your structure.
    • Lines represent the path where structural members will be applied.
  3. Step 3: Apply Structural Members
    • Click Structural Member from the Weldments tab.
    • Choose:
  4. Step 4: Trim/Extend Members
    • Use the Trim/Extend tool to adjust overlapping or intersecting members.
  5. Step 5: Add Gussets & End Caps
    • Gusset: Reinforces frame corners.
    • Select the sketch segments to apply the profiles.
  6. Step 6: Add Weld Beads
    • Fillet Bead or Weld Bead tools simulate welding on the model.
  7. Step 7: Generate Cut List
    • Use Insert → Tables → Weldment Cut List to create a table listing all member lengths.
  8. Step 8: Add End Caps
    • End Cap: Closes open tube ends for a finished look.
  9. Step 9: Add Weld Beads
    • Fillet Bead or Weld Bead tools simulate welding on the model.
  10. Step 10: Generate Cut List
    • Use Insert → Tables → Weldment Cut List to create a table listing all member lengths.
  11. Step 11: Create 2D Drawings
    • Generate detailed drawings with dimensions, weld symbols, and cut lists for fabrication.

Applications

  • Industrial machinery frames
  • Construction structures (trusses, frames)
  • Furniture frames
  • Pipeline and tubing layouts