Mapping error when unfolding a sheet metal part

3D Design Sheet Metal / Machine Welded
1

Hello and Happy New Year to all,

I have a sheet metal part created in SW2020.
On this part after doing a material removal indicates an error in the unfold regarding the mapping.

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image1606×823 80.8 KB

On the image above the unfolded part with this error, the removal of material goes through 2 folds, in the unfolded the 2 radius of folds are still apparent after the removal of material (circled in red).

If below you will find the folded part, the material removal is circled in green,

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image467×795 25.7 KB

  1. Do you have a solution to this mapping error?
  2. How is it possible to remove material through a fold correctly?

Kind regards

2

Hello
Happy New Year to you.
Unless I'm mistaken, you should make this cut flat and then fold to have a correct result.

1 Like
3

Hello

According to the creation tree it seems to me that this is what has been done, unfold function, remove materials and then fold.

1 Like
4

@FUZ3D , frowned upon :smiley:
After maybe a bug of the 2020 on the unfold function. Otherwise the sketch which is badly positioned and generates this.

5

It would be interesting to see the options of material removal (normal, optimized geometry, etc.)

6

If ever the sketch is completely constrained and the removal of material has been done after an unfold function

So below are the parameters of the removal of material

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image1546×1101 111 KB

7

Hello
I just did a test with SW2022SP5 I don't have this problem

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image652×676 72.7 KB

image
even with thinner sheet metal

8

Hello;

Have you tried without the "Normal Material Removal To" checkbox enabled?
Also check in "selected contours" that all new surfaces are taken into account...

Kind regards.

1 Like
9

I worked a long time with the 2020 since we did 2020 => 2022 and I never saw this bug

10

It can depend on the MS

11

So I just did the test without the option to remove it. of normal matter and I no longer have the concern of the material which remains image in support.

Function Info:

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image1697×970 103 KB

View of the unfolded room:

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image1006×1015 44.4 KB

Is it normal that this parameter causes this problem?

12

For my part, with or without the option checked, it doesn't change anything. On the other hand, try to do the dxf of cutting to see if it doesn't generate double lines

13

The DXF comes out in good condition and is not wrong