Conical Bend in Sheet Metal

[JDMather]

How do I create and Flatten a conical bend in Fusion sheet metal?

[TrippyLighting]

What's wrong with your approach ?

It seem rather brilliant!

[daniel_lyall]

@JDMather There's nothing wrong with that it works very well.

[etfrench]

How would you manufacture the part?  I can see using a hammer and a wooden form with the tapered radius of the bend, but how would you do it with a brake?

[daniel_lyall]

You can do it with a constant radius instead, you would stamp it or do it by hand

[Anonymous]

Im just trying to get the same/similar flat pattern to occur however doing it without the fillets. I would prefer to set the radius using the "radius bar thickness" in the sheet metal rules however I don't seem to able to get it to unfold without the fillets. Any thoughts on why this will not work?

[lichtzeichenanlage]

@loganrmay: This screencast might help (sry for the title)

[Anonymous]

Hey mate thanks for that, I can now understand the process for creating these shapes with different methods. I also noticed as well if you hit "join" when thickening saves a "combine" step. Is it possible to get a flat pattern without the fillet? If not can you explain why, sorry probably a pointless question as long as it works but i got to know!

Can anybody tell me is there a way to create similar flat patterns from developable curved sheets say those that make up the hull of a boat?

[TheCADWhisperer]

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@Anonymous wrote:

Can anybody tell me is there a way to create similar flat patterns from developable curved sheets say those that make up the hull of a boat?

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@Anonymous

Can you start a new thread with this exclusive topic and post an example *.f3d file?

[arie.dv]

I'm trying to produce something similar to this, but one end is circular. As there is no flat face I can't draw a sketch on a face to create the flange from. So I've sketched a line between the two end sketches and created a flange from that. Thickened the surface profile and joined it to the flange. Selecting either the inside or outside edge of the flange doesn't produce a flat pattern.

So what am I doing wrong?

Attached copy of file.

[lichtzeichenanlage]

AFAIK Fusion can't solve round to straight transition bends.

[arie.dv]

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@lichtzeichenanlage wrote:

AFAIK Fusion can't solve round to straight transition bends.

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That's a bummer. I wanted to produce drawings to take to a sheetmetal fabricator to make a adaptor to change from a circular duct to a rectangular inlet of a dust extractor cyclone.

[JDMather]

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@arie.dv wrote:

I'm trying to produce something similar to this....

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@arie.dv

Something like this?

This one with tighter radius in the corners.

Rectangle to Round Development

[lichtzeichenanlage]

Hey - that's smart!

[arie.dv]

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@JDMather wrote:

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@arie.dv wrote:

I'm trying to produce something similar to this....

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@arie.dv

Something like this?

This one with tighter radius in the corners.

Rectangle to Round Development

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Yes. How did you do that?

All I need to do extra is add flanges for attachment to the rectangle end, also extend the circular end for the pipe to fit into.

Thanks, Arie.

[arie.dv]

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@JDMather wrote:

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@arie.dv wrote:

I'm trying to produce something similar to this....

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@arie.dv

Something like this?

This one with tighter radius in the corners.

Rectangle to Round Development

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Looking at your timeline I can see that the first two sketches are for the round & rectangular parts and the third sketch is for the surface trim tool to create the gap required to insert the flange. The last sketch would be for positioning the flange. What I can't figure out is what plane to draw the third sketch on and what to draw.

I've drawn my circle & rectangle on the XZ plane and the trim cut line on the YZ plane but that doesn't work because the trim tool cuts perpendicular to the sketch plane.

Some guidance on how to draw the third sketch would help me to work this out.

Thanks, Arie.

[arie.dv]

OK. I think I figured out how to trim the gap in the loft and added the flange & thickened the loft but I still can't flatten the resultant model.

Have attached my version of what @JDMather did.

Regards, Arie.

[JDMather]

At least 2 violations of the 4 Rules of Sheet Metal.

Bends can only be cylindrical or conical.

Flat faces must be planar.

Your part doesn't visually look like my part.

Can you identify the conical bends and the planar faces in my part image?

https://autodeskuniversity.smarteventscloud.com/connect/sessionDetail.ww?SESSION_ID=225530

[arie.dv]

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@JDMather wrote:

At least 2 violations of the 4 Rules of Sheet Metal.

Bends can only be cylindrical or conical.

Flat faces must be planar.

Your part doesn't visually look like my part.

Can you identify the conical bends and the planar faces in my part image?

https://autodeskuniversity.smarteventscloud.com/connect/sessionDetail.ww?SESSION_ID=225530

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My normal use of Fusion is to design components and mill them out on an CNC router.

So this is my first use of the sheetmetal functionality of Fusion.

I had a quick look at https://f360ap.autodesk.com/lessons?utf8=%E2%9C%93&%2Flessons%5Bsearch%5D=sheet+metal  before attempting to create my sheet metal adaptor.

So I don't know what rules I have violated.

I can see that you have lines creating triangular portions, which I assume are the planar faces and the conical bends are the areas in between. What I don't understand is how you create them.

Regards, Arie.

PS. Here is the final product that I wish to produce.

[arie.dv]

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@arie.dv wrote:I can see that you have lines creating triangular portions, which I assume are the planar faces and the conical bends are the areas in between. What I don't understand is how you create them.

Regards, Arie.

PS. Here is the final product that I wish to produce.

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I finally figured it out. I need to create a sketch with rails between the circle and the rectangle. Which is then used by the loft to create the planar faces.

Regards, Arie.