Hello everyone,
In my way of working under SW I can very well design washers with 3, 4, 5 waves etc. and Belleville puck.
But the only problem once finished is that it is impossible to re-unfold the puck to have the sides flat.
Do you have a solution to offer me.
Friendly.
Syrius.
Hello Syrius,
I guess the definition of your wave washer is based on a surface smoothing.
The "Flat Surface" function allows you to obtain an approximate shape of the washer blank, by selecting the edge as the starting edge.
This function is also suitable for flattening one or more faces of a volume body.
Kind regards
Hello m.blt,
Thank you for this answer.
But how do I get the dimensions because when I do a plan, it's impossible for me to come out as flat as I am formed.
Kind regards.
Hello
I hope that @m.blt will not hold it against him to answer for him.
It's normal that you have a difficulty because the flat surface is not parallel to the plane (so the MEP doesn't like it at all since they are 2D projections) and in addition the dimension on this type of spline is not possible.
However, it is possible to get to the MEP but not directly.
1°) our colleague @m.blt has given you a very effective method for flattening but if you want to go as far as the MEP you have to add a volume washer but which respects certain conditions
I'll explain this in another post because it's simple to do but not to explain.
The dimensions I find with the method I propose are of a diameter of 43.6 and 28 to be compared with sketch 1 of @m.blt which is originally Ø40 and Ø 20mm. The deviation is justified in relation to the shrinkage due to the shaping
We could by doing a PEF simulation confirm the diameter before deformation and after wavy forming, this would allow us to approach the dimensions while remaining in the elastic domain despite the fact that the washer has passed into the plastic domain to arrive at the corrugated shape.
But given the thin thickness of this type of washer, this should not be aberrant.
I'll explain how I did it in another post'
Kind regards
Hi Zozo,
I am interested in this way of doing things and if it is possible, instead of avoiding big speeches, to make a video during the construction until the flattening and the drawing.
CDT
The rest ....
First, change the chosen point to "flat surface" (see the explanation in the image)
Small problem, you will not be able to have (except to do an ASM) both the corrugated part and the flat part because you will have a superposition of views.
The trick is to make an asm with two pieces but which are spaced out so that the views don't overlap (okay it's a bit clumsy to make an ASM)
Maybe @m.blt has another method in surface to do something a little less DIY.
Hoping that at least it will inspire you! ;-)
Kind regards
I put the PART file but in 2021 version just in case
@cil dede_1
I don't know if you read my last post which still charabiates a little ;-) ;-) ;-)
Cdlt
re
I think I understood but not everything, I managed to recreate a sketch from the flat surface but the problem is that I didn't manage to make a totally straight shot so in the drawing looks like a potato but I still can't get next to it.
What I would like is to have in the same shot the wavy washer (front view and top side view) and the flat side washer
The best you can do without using ASM is this.
You just need to offset the flat extrusion sketch by 10 mm or more
Our colleagues will find you something a little cleaner but in the meantime ;-)
Which version of SW do you have???
I have the 2016 or 2021
If you have the opportunity to make a short video I'm interested and I could learn with this one
Hello@tous
If it's to personalize a projection I want to say that:
It is also to say that the surfaces are treated as reference geometry (such as planes...) so to import them, objects of the model >> surface.
The thing is that personally I find the surface flattened and not adequate (depending on the desired precision), the proof is that this flattening differs according to the position of its reference point (edge), unlike cylindrical conical axial geometry;)
Generally speaking, flattening any left surface does not result in geometry with simple contours. In the case of the wavy washer, although the look is similar to a circular ring, this is not strictly accurate.
This can be seen on a washer with a small number of ripples (3 or 4), with a relatively high height.
Cf. image below, where the flattening is slightly closer to a curvilinear hexagon...
To come back to your initial question: if we are talking about ordinary washers, the approximation by a ring seems acceptable to me, for example by estimating the radii graphically via two circles drawn in a sketch of the plane of the flattening. Starting from this sketch, it is very simple to define by extrusion a new body that represents the sketch of the flat washer, and to make the drawing limited to this body, by hiding the body of the wavy washer (option "Body selection" accessible at the time of defining the views).
In this case, the dimension is extremely small: two diameters and the thickness of the washer.
If it was a part requiring greater geometric rigor, for example for laser cutting, it becomes difficult to approach the shape with simple elements, as the contours are often spline curves. A drawing is of course possible, but the quotation is not feasible.
A dxf file output of the flattening can be envisaged, for precise monitoring of the contour in NC.
By betting that the subsequent deformation of the real part will be in line with SolidWorks' vision in its flattening algorithm... And there, it's not won.
In the absence of a video, I have put in the attached zip the files of the model of the puck and its flattening, and the summary drawing, all in v2019.
In the 2021 version and maybe even already 2020, it is possible to make "other position" views of a part (on previous versions, it is indeed reserved for asm). You just need to do 2 configurations.
Hi all
I persisted all week to make a bet from a wave washer but impossible to hang a rib.
Is my departure plan bad? Or did I miss something?
So would there be a charitable soul who could make me a little video tutorial from the design to the drawing to understand my mistakes.
Thank you and Bon WE to all.
Syrius.
Hello
Sometimes on complex geometry it is not possible to attach the dimensions directly, for my part in this case I create a "hidden layer" in my drawing in which I create sketch elements (lines, arcs ....) to which I hang my dimensions.