How to get a helical split tube

3D Design Volume Model
1

Hello everyone ,

I've been looking since this morning, but I'm breaking my teeth...
I have a helical split tube that I make in machining (milling), but I would like to do some rolling tests.
To do this, I wanted to model it in sheet metal... ouch!!
It sounds very simple, but not on SW.
Anyone have an idea?
For information: Ø tube = Ø43/Ø53 and slot width 3 to 10 mm.


tube_decoupe.png
1 Like
2

Hello

Using the "transition fold" function, one finds something that could be suitable.

You need to create two sketches and use this function to make it like a smoothing but in sheet metal.

Have a nice day


capture.jpg
3

Thank you.
but already tried, but on a long part (here 360mm).
SW draws lines from point to point. which gives a 'buckling' of the room in the center.
so the unfolded one is a bit suspicious.

4

Hello, can it help, I made a sketch from the front, and from the right then bossing/base swept.


tube.sldprt
5

with the helix/spiral way, then bossing/swept base.

I hope I helped have a good day


tube_2.sldprt
6

Thank you dmc.betude but what I want to get is the unfolding of this solution.
This part is already done. It's the sheet metal part that I miss.
What I am asking for, I must not have been clear.
How do you unroll this part with the sheet metal module?
or how to start from a flat (diamond) to roll up a piece with an inclined slit.

7

goes through flat surface

you select your surface or create an outdoor surface

and the Surface Flattening option tool

and c closed

@+ ;-)

This is how I have been proceeding since the arrival of the Mise à plat tool

otherwise you have to convert your sections into a 3D sketch

and it works too

1 Like
8

Hello

Look at it's a gift.

may the force be with you.

 


tube.sldprt
2 Likes
9

Thanks gt22 this gives me a good preview of the unfolded, but it doesn't totally solve my problem.

10

Thanks gt22 this gives me a good preview of the unfolded, but it doesn't totally solve my problem.

and you can explain where it's not going well thank you

11

OBI WAN is just magical.

But how do you do it??!??!?
Even studying your file I don't understand.

12

Yes dsl I just saw. its going to be better normally. But Obi Wan seems to be more knowledgeable than me :-)


tube_3.sldprt
2 Likes
13

and you can explain where it's not going well thank you

This does not account for losses, and use in a drawing is not practical.
14

@ todesco,

To have an unfold you need at least a flat surface doc if you look closely at my sketch it's a square with huge radii.

For example, a 100x100 square with radii of 49.95 so you have a plane area of 0.1.

so if you change Ø keep that in mind.

may the force be with you.

2 Likes
15

Thank you everyone for your answers

1 Like
16

Hello

otherwise you can also do it this way. Solidworks 2016 part


ac_cobra.sldprt
17

So there Too strong our Obi Wan.

there is no intelligence on this forum.

Well, I'm stuck.......   RHAaaaaa give me some solvent to take off everything is tape

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18

Well seen dmc.betude, it's a very good solution and it's made with just one function.

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