6. Box, overlapping edges

Exercise 6: Box, overlapping edges

Version compatibility

This exercise was carried out with version 27.0 (Vertex 2021).

In this exercise you will learn to

• We will become familiar with the options for the Add Flange feature.
• To model the overlapping edge. (Excessive thickness has been used in the model to make the example figures clearer).

Functions to be used:

• Sketching + Operation: Thin feature.
  
• Add Flange, without Trim edges.
  

Create a new part

• File > New > Part.
  
  • Enter the label (which is also the name of the model and by default will be the name of the drawing).
  • Enter the archive information by clicking Arc.Data.
  • Select the project where the model will be saved.
  • OK.

Model the bottom of the box

• Size: 160*120*2
• See instructions for Exercise 1:  How to start modeling sheet metal.

Add flanges to long edges

• Select two long lines from the top of the sheet.

• Right-click function: Add Flange.

  • Radius R: 2

  • Angle A: 90
  • Length L: 60
  • The other values: 0
• Click the option: Outside dimension.

The options of the Flange

The example in the figure below has a 100mm wide base with options:

• Add whole bend.
• Inside dimension.
• Outside dimension.

Add flanges to short edges

• Select two short lines from the top of the sheet.
• Right-click function: Add Flange.

  • Radius R: 2

  • Angle A: 90
  • Length L: 60
  • Take in B1 and B2: 1.1 (This value makes room for the overlapping flanges of the next step together with the values of the gaps C1 and C2.)
  • Gap C1 and C2: 1 (This value allows for reasonable manufacturability).
  • Side angle A1 and A2: 0
• Click the option: Outside dimension.
• Remove selection: Edge trim.
  
• OK.

Add overlapping flanges

• Click on the edges inside of the ends (4 pcs).
• Right-click function: Add Flange.

  • Radius R: 2

  • Angle A: 90
  • Length L: 20
  • Side angle A1 and A2: 20
  • The other values: 0
• Click the option: Add hole bend.
• Remove selection: Edge trim. (If selected) 
• OK.

Create an unfold Drawing

• In the feature tree, click Drawings.
• Right-click function: New Drawing.
• Select projections (here only: flatten sheet).

Select the options you want for flatten sheet projection

Another way

• Trimming long sides is different, than above.
• Here is one step less, than above.

Model the flanges of the box

• Click to the top face of the plate or click all four lines of the top face.
  

• Right-click function: Add Flange.

  • Radius R: 2

  • Angle A: 90
  • Length L: 60
  • The other values: 0
• Click the option: Outside dimension.
• Note the option: Edge trim.
• OK.

Add overlapping flanges

• Click on the edges inside of the ends (4 pcs).
  • Be careful to choose the right line from the corner, because the lines on each side are 0.17mm apart.
• Right-click function: Add Flange.

  • Radius R: 2

  • Angle A: 90
  • Length L: 20
• Click the option: Add hole bend.
  
  • Side angle A1 and A2: 20
  • Depth D: 4.1 (4.1 = 2+2+0.1 = Sheet metal thickness + bending radius + working margin) 
  • The other values: 0
• OK.

Create an unfold Drawing

• In the feature tree, click Drawings.
• Right-click function: New Drawing.
• Select projections (here only: flatten sheet).

Select the options you want for flatten sheet projection

Save the model

• File > Save or click

  

  or press

  

  

Further processing of the model (These are presented in Exercise 5 "Drawing on model")

You can add a material item to the model with the right-click function Item Data.

• These will also appear in the parts list of the model drawing.

You can create a drawing for the model:

• In the feature tree, select Drawings.
• Right-click function: New Drawing.

Download the box model (VX_SMD8.vxz) here.