Sheetmetal rolling and hem to attach

Sheetmetal rolling and hem to attach

sunojkashyap
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Message 1 of 9

Sheetmetal rolling and hem to attach

sunojkashyap
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How to hem these rolled sheet metal and lock it together 
i am using 1mm thickness steel, mild. is it possible to hem as shown in attached image

sunojkashyap_0-1695283693434.png

WhatsApp Image 2023-09-20 at 13.01.47.jpg

 

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Message 2 of 9

CCarreiras
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Hi!

 

Something like this?

 

CCarreiras_0-1695284484151.png

CCarreiras_1-1695284531509.png

 

CCarreiras

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Message 3 of 9

sunojkashyap
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I have a Telescope tube i would like to design this tube by heming method 

WhatsApp Image 2023-09-20 at 13.02.04.jpg

 

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Message 4 of 9

CCarreiras
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Well.... you ca do something similar to this:

 

File attached:

Note: you can use the file and change the thickness. radius, lenght etc... i believe it will update well, if not, check the sketch i do some adjustments.

 

CCarreiras_0-1695287679369.png

 

CCarreiras

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Message 5 of 9

sunojkashyap
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Thanks CCarreiras it helped 

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Message 6 of 9

sunojkashyap
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Could you please send a detailed way how you did that hem @CCarreiras 

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Message 7 of 9

CCarreiras
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Hi!

 

There's no special trick.

Since you can't use hem tool in curved geometry, you have to create your own "hem".

 

Start with a sketch, and make sure you provide room to avoid overlap the solid geometry.

 

t1.gif

Tip: based your dimensions on the "Thickness" parameter, later if you have to change the model thickness, the geometry will update accordingly.

CCarreiras

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Message 8 of 9

CCarreiras
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If the sketch is well designed, and the solid geometry doesn't overlap, you just have to use CONTOUR FLANGE and select the line, set the correct "offset direction" and insert the "extension" value.

After creating the solid, you can obtain the flat pattern.

 

t2.gif
Note: in the previous model i attached, i used an alternative method: EXTRUSION (surface mode) + THICKEN (Thickness value). We use alternative methods when we can't use sheet metal tools directly, but in this case, you can use CONTOUR FLANGE with success, and i believe it's easier for you . Anyway... The final result is the same.

 

To resume... the secret for success here is a good sketch, fully constrained and well dimensioned.

 

I attached the file with this Contour flange method also.

 

CCarreiras

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Message 9 of 9

sunojkashyap
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Thanks @CCarreiras it was very helpfull 😃