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Sheet Metal · Lesson 2: Creating flanges and bends

Edge flange, miter flange, hems, sketched bends and jogs: the everyday features.

Lesson goal

Build a complete bent sheet metal part from a base flange: flanges, hems, sketched bends and jogs.

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5 videos

✎

1 exercise

Beginner

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Prerequisite: Lesson 1

1. Watch the videos

Dassault Systèmes videos hosted on MySolidWorks: they open in a new tab and a free account is enough. Watch them in order.

Edge FlangeVideo 1▶Edge FlangeAdd a flange on one or more edges, and set its length, angle and flange position.↗ Miter FlangeVideo 2▶Miter FlangeRun a sketched profile along several edges, with the miter cut handled at the corners.↗ Hems in Sheet MetalVideo 3▶Hems in Sheet MetalFold the edge of a sheet back onto itself: closed, open, tear drop or rolled.↗ Sketched BendsVideo 4▶Sketched BendsBend a sheet along a sketch line, without adding material.↗ Jog and MirrorVideo 5▶Jog and MirrorCreate two close bends in a single feature, and mirror sheet metal features.↗

2. Key takeaways

1

Everything starts from the Base Flange: thickness, bend radius and K-Factor are defined there once, then used by every feature of the part.

2

A flange on one edge: Edge Flange. One profile running along several edges: Miter Flange.

3

The flange position (Material Inside, Material Outside, Bend Outside) changes the final dimension. Choose it based on how the drawing is dimensioned.

4

A Hem removes a sharp edge and stiffens the sheet. A Jog creates a step in a single feature.

5

Check the flat pattern as you build: a problem caught early is fixed in one feature.

Tip

Set the radius and K-Factor in the base flange, or better in a bend table, rather than feature by feature. If the sheet changes, there is only one place to edit.

3. Do the exercise

Model a U-shaped cover in 1.5 mm steel sheet:

  • 200 × 100 mm base, two 40 mm flanges at 90°
  • a closed hem on the front edge
  • a 10 mm jog on the back face
✓To check: Flatten the part. The flat pattern must be in one piece, with no overlap at the corners.

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