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Square to round transition flat pattern
4

Square to round transition flat pattern

Square to round transition flat pattern

(OP)
Good day,

I came up with this doubt today.

Is any way to obtain the flat pattern from a square to round transition on NX?

I created this section with "through curves" option, but when I tried to create the flat pattern, it says that is unable to do it.

Thanks!

RE: Square to round transition flat pattern

Here is a previous thread that may guide you in the right direction.
http://www.eng-tips.com/viewthread.cfm?qid=84367

In the search above, enter square to round and see if the other things that appear will help you.

RE: Square to round transition flat pattern

(OP)
I can generate the transition, but the problem is when I try to create its flat pattern to manufacturate.

I can create flat patterns of flanges or pipe elbows, but not with this transition.

Is there any way or tutorial to do it?

Thanks in advance!

RE: Square to round transition flat pattern

What version of NX are you running?

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

RE: Square to round transition flat pattern

Hi,

I am interested on how to create the square to round and flatten it as well.

Many thanks for any tips!

John

RE: Square to round transition flat pattern

(OP)
JohnRBaker, the version is 8.5

RE: Square to round transition flat pattern

I can't get it to work in NX 8.5 but I was able to do it using NX 9.0, as shown below. Even then, it's a non-trivial solution, however I've attached the part file (along with a copy of the image) in case anyone with NX 9.0 would like to look at my approach.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

RE: Square to round transition flat pattern

(OP)
JonhRBarker, can you write every step to get to this result??

Maybe I am not modeling this patter properly. I use through curves.

Also what function do you use to unbend it? And the following.

Thanks in advance!

RE: Square to round transition flat pattern

Mine is made completely using Sheet Metal Features, basically Contour Flanges and Base Pads. If all you wanted was the solid body, there are much easier ways to go, but if you want to be able to flatten it, then you have to really go the Sheet Metal route. The big difference between NX 8.5 and NX 9.0, in this example, is that I had to create the portions of the transition as separate bodies, albeit Sheet Metal features. Unfortuantely, in NX 8.5 there is no way to unite these together and still have the Sheet Metal module consider the model to be 'flattenable'. In NX 9.0 we added a specific 'Unite' function to the Sheet Metal set of functions so that you can now use a piece-wise approach to creating a Sheet Metal part that can still be 'flattened' after the pieces have been United together.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

RE: Square to round transition flat pattern

(OP)
JonhRBaker, so apparently there is no way to do it with NX 8.5??

Thanks!

RE: Square to round transition flat pattern

Would it be possible/easier with the "aerospace sheet metal" module?

www.nxjournaling.com

RE: Square to round transition flat pattern

(OP)
How can I access to this function?

RE: Square to round transition flat pattern

aerospace sheet metal is a module in NX available at added cost
but it is possible that you have it in your NX bundle and don't realize it

RE: Square to round transition flat pattern

(OP)
I would check ir, but, do you know if there is any way to do it with the basic license?

Thanks!

RE: Square to round transition flat pattern

My expectation is that with a BASIC license, you should be able to accomplish something as BASIC as this square-to-round flat pattern.

This is Sheet Metal 101, y'all.

Are my expectations too high?

Proud Member of the Reality-Based Community..

To the Toolmaker, your nice little cartoon drawing of your glass looks cool, but your solid model sucks. Do you want me to fix it, or are you going to take all week to get it back to me so I can get some work done?

RE: Square to round transition flat pattern

You can, starting with NX 9.0, which has been available for well over a year now.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

RE: Square to round transition flat pattern

I need to apologize as I made this problem way more complicated than it needed to be. After going back and looking at the options available to me I realized that the NX Sheet Metal software was a lot more powerful and accommodating then even I was aware of, including NX 8.5. What I discovered was that I actually was able to create the round-to-square transition 'duct' using NX 8.5 and I did it using only EIGHT features (two of which are Datums and two of which are Sketches). I've attached the NX 8.5 part model. Note that the only real issue is that I had to leave the duct in two halves, flatten each one and then Unite these bodies to form the final flat solid.

Note that in NX 9.0 I can actually get a single model of the 'duct' that can be flattened, and I can do it with ONE LESS feature, seven in total (again, two of which are Datums and two of which are Sketches).

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

RE: Square to round transition flat pattern

Hi John,

Could you give some insight on how you created the square to round shape? A video perhaps?

Sorry for being behind in my design capabilities.

Thank you

John

RE: Square to round transition flat pattern

Hi John,

Many thanks!!!! Awesome!!

John

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