Sheet metal cone cutting

3D Design Sheet Metal / Machine Welded
21

@AC Cobra: Because it crashes as soon as I edit your sketch...

@Fudz3d: I've already tried without result.

22

Ok, well give all the data and I'll do it right ^_^ for you

2 Likes
23

Personally, I now use a maximum of flattened surface

100 times + simple since it works well

question  @ Yves T

your piece that is created in volume 

rather than going through a unfolded or unfolding sheet metal

You create a surface on your workpiece with an offset of .001 mm

and it is this said surface  that you will use

Flat Surface tool in the Surface Tool

all you have to do is put a thickness of sheet metal

That's how I proceed now

and it works perfectly ;-)

see attached file SW 2017

@+ ;-)


cone_yves_t_avec_decoupe_depier.sldprt
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24

@GT22: I also tried but the surface flattening tool remains greyed out...

@AC Cobra: That's nice, but unfortunately, I'm not allowed to.

I got the SW 2016 SP4 installation files at the BE. I'll test it when I have a moment.

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25

@ Yves T 

Make another room with diff odds

that way no privacy problem

simply to do functionality tests

@+

ps don't understand why it's grey tool flat surface

You have to create a surface and it's this surface that you flatten

Have you been in Customize tool/ Surfaces/Command

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26

@GT22: That's what I did. Surface offset and then surface flattening.

I'm going to put that aside for a few days and get back to you.

Thank you for your help in any case. I will not fail, as usual, to bring you mine:)

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27

What if you try via a removal of material on one of your shots and then a circular repetition??

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28

@AC Cobra: The prototype was made like this and in fact, it produces a flat in the lower part of the waves. Which is really very ugly.

Don't worry, given the very short deadline, I made the part on Inventor and edited the plans for the laser cutting and rolling. I will still have to make the 3D model in SW for the BE archiving.

1 Like
29

to understand the dish after the fold that Yves explains

See this image which includes the external and internal surface of the flat part

Starting from the cup

This is due to the small section of the cone and the loss and stretching of the outer and inner skins

This confirms that the laser cutting should not be perpendicular to the flat workpiece

so to cut after the cone made via laser on circular drive

attached file SW 2017

@+ ;-)

 


cone_yves_t_avec_decoupe_depier_peau_interne_et_externe.sldprt
30

Well, after spending the morning uninstalling SW and redoing 3 installations, it works perfectly.

I put you a visual of the result with the 4 simple functions ...


capture.png
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31

Hello Yves

What version did you use in the end?

@ GT 22 I looked at your pieces but I don't understand how you do it from the unfolded surface to modify it. I tried to make holes in it and well rusk, SW offers me a trip to the Parthenon.

I've never done a surface and I'll have to get started (in the meantime you could make holes in the surface and fill it in please).

32

I finally used SW 2018 SP2.0 as I tried at first. The software must have sensed my despair (or my annoyance). What annoys me greatly is that my 5 other positions don't work as they should either... That's the kind of thing that drives me crazy.

Once again thank you to those who tried to help me, it's nice to feel supported in difficult situations:)

3 Likes
33

Hi @ Zozo

(the unfolded) the flat surface is not perforable and foldable

I use the flattening on an object already treated 

on the other hand if you want to unfold and work on the flat and folded

It's quite possible

Look at this piece in volute attachment on spiral staircase

@+ ;-)

 


maqfbe6_volute_sur_escalier_helicoidal.sldprt
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34

The unfolded cutting file

 


maq_gc_test1.sldprt
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35

solid sheet metal


maqfbe6_tole_pleine.sldprt
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36

Thank you gt 22 Impressive:-)

I understand better how you do it, especially with the "combine" function

There are a lot of functions that I don't know because I don't do complicated things in sheet metal or staircase type.

 

 

1 Like
37

To create volutes on this type of staircase

I haven't found any other walkthrough

 there are many flat cutouts on the unfold and then folded

Also be careful to unfold and unfold it's not quite the same function

I also used the combine tool

since to create the volutes

I took vacuums to keep the sheet metal and be able to fold it

and then a solid bend sheet metal

and subtracts the common elements

no other solution to solve this type of problem given

@+;-)

38

I close the subject.

@Gt22: it's the best solution in my opinion as you created the crawling scrolls.

I give the best answer to AC Cobra for the amount of circumvention idea he gave but thanks to the others for their participation:)

2 Likes
39

I'm coming back to the subject because I had the problem again. I opened a ticket and got the answer.

So, to prevent others from spending hours searching like donkeys, I give you the cause and the solution.

In general, Solidworks does not accept material removals that create zero thicknesses, except that in this case, it accepts it without warning.

This removal of material having created a part of zero thickness cannot be folded, hence the error message that some functions cannot be unfolded (folded).

The solution is simply to create a larger sheet, dimension the removal correctly to have its finished rib, do the removal and fold.

Once presented like that, it seems obvious. So watch out for tangent arcs:)

PS: Thanks to the Visiativ technician for his quick response and for his sympathy.

3 Likes