How to check the length and points of an unbent curve in sheet metal?

Forum|Forum|3 years ago
December 6, 2022
3 replies
2980 views

Please see the attached picture together.

Hi, In sheet metal, through the flat pattern, we can know the outer shell size. I was wondering if it is possible to calculate the following as well.

1. Is it possible to find the length of the inner curve of the sheet metal shape when it is unbent as shown in red in the picture?
2. Is it possible to check the quantity for each corner section in sheet metal as shown in the blue check in the picture?

Thanks,

Warm Regards,

SeonHo CHA.

Sheet Metal Design

Best answer by tbraxton

Creo 7 model for reference. This ais a rudimentary example of how to obtain the curve length in the formed and flat geometry by using analysis features. You can see the formed length is less than the flat length in the picture below. The analysis features will update with model regeneration and contain the feature parameter length. The use of datum ref intent chains (ref1 and ref 2 seen in model tree) can improve the robustness of regen due to lost or missing references.

E

EdvinTailwind

13-Aquamarine

1. Using the Measure tool and holding CTRL allows you to sum all selected edges. It's a bit tedious but it will return an answer.

2. Sorry, don't know.

tbraxton

22-Sapphire II

Measurement of the length of the loop you have shown can be automated by using analysis features and datum reference features. The value will update with changes to the model using this approach. I think that counting the corners will require custom API code development.

C

CHASEONHO

Author

18-Opal

Our method is to create a curve using a section after unbend, then measure the length of the curve.
Can you Please elaborate on how to use the analytic feature?

tbraxton

Answer

22-Sapphire II

Creo 7 model for reference. This ais a rudimentary example of how to obtain the curve length in the formed and flat geometry by using analysis features. You can see the formed length is less than the flat length in the picture below. The analysis features will update with model regeneration and contain the feature parameter length. The use of datum ref intent chains (ref1 and ref 2 seen in model tree) can improve the robustness of regen due to lost or missing references.

1_prt0001-prt-3.zip