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Adding features to deformable part

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thegasperus

Mechanical
Oct 9, 2019
20
Dear all!

I am practically new at using NX. I am using NX11. Currently I am dealing with a problem preparing deformable part for adding to ASSY. I know that you can't assign features such as edge blend to deformed part. I am hoping to get some advice on preparing the part to suit the final form.
Basically I want to know if there is an option to add edge blends to this particular case part(it is not the real part, since I cannot provide you with the original file). There is a simple sketch shown to represent my dimensions. Part is created with modelling (sketch, revolve and thicken) and deformed in ASSY. I can create basic shape of the model correctly, but for detail view on the drawing I would like to add blends to edges to get correct shape after forming. There is also a non deformed part on one image and deformed as it should be on the other(this one is created with editing sketch dimensions, not with deformable part in ASSY)that is why it has blends on edges.
Any suggestions or tips? Maybe recreate the part using different type of sketch constraints?

Thank you
Thegasperus
Prirobnica_zadnja_sketch_snccqr.jpg
Prirobnica_zadnja1_eghz4v.jpg
Prirobnica_zadnja_xegtnq.jpg
 
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Have a look at the attached model

If you change P7 to 180 then the blends will suppress, anything less than 180 and the blends will be unsupressed.

Cheers

Si

Best regards

Si

NX7.5 NX8.5 NX9 NX10 NX11 NX12 NX1847

Technical Manager- Design

 
OK, I understand that. I have to create corner from 180 to 270 degrees (in my case) since there is a mechanical operation of pressing involved. Maybe I have to define the problem one more time.

The first image is sketch for representation. The second image is basically first stage from tool and from that model I have to get model on the last image. With shown sketch I can create deformed part as shown in the last image, but without edge blends. Both shown parts are individual components with individual drawings. But I need edge blends later for detail view in drawing of deformed part.

Any suggestions, tips or tricks?
 
Guys hi again.. so, no solution or suggestion here?
 
I must say I have difficulties understanding this.
Do you actually need to deform this thing ?
Or can you model it to final shape and use that in all your assemblies ? without the "deformation action".
In NX you can have as many solid bodies as you like in a single partfile, i.e you can in the same file have both a flat shape and the deformed, then by having these in different reference sets show the desired shape in the assy.
The precise deformed shape will most probably not be correct by this deformation, there is no "thinning" etc on the deformed shape.
The special thing about the deformable part is that it can vary the size/shape in each assembly independently of the base component .
in assy A the outer diam = 88 mm
in assy B the outer diam = 105 mm etc

If you would do this object frequently and to different shapes/ Sizes in each assembly , that would justify the deform feature. else maybe not.


Regards,
Tomas

 
Hi Thomas!

Thanks for you suggestions. To explaing little bit more. We have a part that is pressed or deep drawned and cut with knives (all in z-axis in the pictures) to form final shape from flat sheet metal. That is an individual part presented in the middle picture in OP (just without drawned details aroud center). It is semi-stage part but it need its own drawing wit tolerances. That model is later bent and pressed together on the edge around z-axis with two simmillar components to form final product (this operation requires different tooling). That product also needs its own drawing with blends marked, because they are important. Currently we have all parts modelled individually, that means changes muat be applied sepparatelly to all parts. And it can cause errors in models if not prepared with care (or from the same person). That is why I would need connection to original, so the changes could be applied only once (parts and tools are changing slightly through time). So far I managed to create deformable parts and put edge blends in equation with if sentences (expresssions) and it works. Just needs to be done in correct order. I think it can be managed like that. Multiple bodies is an option but still you would need double work. I think the deformable part way is exactly the operation needed for this type of assy. I hope you understand the type of problem as I hope that I will manage to put everything together succesfully. Thank you for your answer.

Best regards
TheGasperus
 
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