hood with curvature - [ topic sheet and related]

[morpheus87jr]

hello to all, since my experience with sheet metals is limited to those 2 exercises done at the cswa course, I am trying to do some practice with a "home" problem.

Having disassembled the hood of the kitchen, and having to make it change, I put to shape it on sw.

I met with some issues:

1- I have two parts (the sides to understand) that are perfectly equal, only change the "direction" of the edge turns (where to stay inside). Do I have to create two distinct details or can I handle this with two configurations of the same component?

2- the front part of the hood is curved (variable ray curve) I built it by detecting points and creating a " xyz dot curve" that I go to convert into the sketch. once the profile is created, it is not possible to create the sheet directly, to create a solid and to convert it later and then to create the folded "orders" for fixing.
How can I proceed?

contour question: the craftsman who has to remake the front told me "what do you think I" but... how do you get a curved sheet with a variable radius profile? always for displacement? and since right along the curved profile are the edges (folded at 90°) on which the sides are riveted, how do they bend the latter?

I attach a small image of the front (obtained as a subtle extrusion), to make the idea of the curve. edit: it is in the state where I got stuck, so not complete.

ps: I forgot the material is copper thickness 0.5 [mm]

 

[meccanicamg]

hi morpheuf, on a practical level it is much easier if you give him the piece of sheet that then builds him. the variable radius curve is not said to be really and anyway it is calandrata and the turns are bent if it is possible otherwise it will climb them with the tig and no one will see the welding.

the right and left are handled as different components or with configurations according to the processes that must be done. for example the mirroring of sheet metal bodies is not allowed, while if you insert the solid inside a new part you can mirror it and make other changes.

you can do the two configurations where only the directions of bending tabs change and the central body is the same, active and unactive feautures in configurations.

I happen personally to disengage 2 mm sheet and tell you that it is enough little to get a good "imitation" of the original... then a hammer shot, a molata, a polish and is better than the original one.

 

[sampom]

hello to all, since my experience with sheet metals is limited to those 2 exercises done at the cswa course, I am trying to do some practice with a "home" problem.

Having disassembled the hood of the kitchen, and having to make it change, I put to shape it on sw.

I met with some issues:

1- I have two parts (the sides to understand) that are perfectly equal, only change the "direction" of the edge turns (where to stay inside). Do I have to create two distinct details or can I handle this with two configurations of the same component?

2- the front part of the hood is curved (variable ray curve) I built it by detecting points and creating a " xyz dot curve" that I go to convert into the sketch. once the profile is created, it is not possible to create the sheet directly, to create a solid and to convert it later and then to create the folded "orders" for fixing.
How can I proceed?

contour question: the craftsman who has to remake the front told me "what do you think I" but... how do you get a curved sheet with a variable radius profile? always for displacement? and since right along the curved profile are the edges (folded at 90°) on which the sides are riveted, how do they bend the latter?

I attach a small image of the front (obtained as a subtle extrusion), to make the idea of the curve. edit: it is in the state where I got stuck, so not complete.

ps: I forgot the material is copper thickness 0.5 [mm]

What version do you have?
Since 2010 there are the "multibody claws" and those equal and symmetrical sides you can simply mirror them.. otherwise 2 parts or as you planned 2 configurations of the same and mountains all in classic together.

for the front.. a few further discussions have been said; swx allows construction of sheets only for bending and rolling, therefore only straight lines or circle arches. no "varie" or spline curves, only arches to which a radius value can be assigned.
you should "recalcate" that curve with a series of arches (for what I see would be enough a couple, maximum 3) of different radius, with the parallel and tangent ends between them (in order to create a unique curve).. It's a stratagem to solve the problem.

greetings
Mar

 

[morpheus87jr]

hi morpheuf, on a practical level it is much easier if you give him the piece of sheet that then builds him.

In fact, it is what I will do:-d (also because it has to be mounted near a twin... and therefore would see the difference). :biggrin:

you can do the two configurations where only the directions of bending tabs change and the central body is the same, active and unactive feautures in configurations.

I was hoping you could reverse it somehow, maybe in the data table... (it could be a good improvement in general, that of being able to define also the direction of extrusions and other features from the table)


Thanks :finger:

 

[morpheus87jr]

What version do you have?

2009, I have to add the version below nick , so I will go to configurations....

for the front.. a few further discussions have been said; swx allows construction of sheets only for bending and rolling, therefore only straight lines or circle arches. no "varie" or spline curves, only arches to which a radius value can be assigned.
you should "recalcate" that curve with a series of arches (for what I see would be enough a couple, maximum 3) of different radius, with the parallel and tangent ends between them (in order to create a unique curve).. It's a stratagem to solve the problem.

greetings
Mar

Thanks for the trick! :finger:

other question, when you go to work together, adding rivets is just unnecessary weight, is it?

 

[sampom]

other question, when you go to work together, adding rivets is just unnecessary weight, is it?

usually yes :smile:
but in this case, if for your "esthetic taste" and make it more real, you could also put them.. are only 3 simple parts, the weight and management will suffer little.

greetings
Mar

 

[morpheus87jr]

the variable radius curve is not said to be really. . .

you should "recalcate" that curve with a series of arches (for what I see would be enough a couple, maximum 3) of different radius, with the parallel and tangent ends between them (in order to create a unique curve). .

trying to approximate with circumferences I discovered that it is actually a curvature with a single radius r515! I would never have said it looking at it! :biggrin:

to get the folded edges on the calandated part, doesn't make me use the command "flange of the edge" I have to extrude them "force"... is there any other way?

 

[meccanicamg]

trying to approximate with circumferences I discovered that it is actually a curvature with a single radius r515!

I said it wasn't a variable radius, figure if they have that time to lose.. .

to get the folded edges on the calandated part, doesn't make me use the command "flange of the edge" I have to extrude them "force"... is there any other way?

if it's a sheet metal fold should make you do it, if it's a straining shape it's normal that it doesn't make you do it. qindi goes as if you try to attack the flange of sheet metal or extrude and "saldi".

 

[re_solidworks]

to get the folded edges on the calandated part, doesn't make me use the command "flange of the edge" I have to extrude them "force"... is there any other way?

It does not make you do it because one of the two operations cannot be made of simple fold, to realize it needs a mold and you enter the field of molding/imbutitura.
solidworks does not develop this type of sheet, serve external applications such as logopress.

 

[sampom]

to get the folded edges on the calandated part, doesn't make me use the command "flange of the edge" I have to extrude them "force"... is there any other way?

would allow you to use the flange of the edge if instead of applying it to the front calandrato I did it on the edge "drawn" of the flat sides.. in that case the feature succeeds.. but then the part is not developable:biggrin: of course.
as re_ says that is another type of processing; but visually and with the size of the finished you can get it.

greetings
Mar