folding tables

[DarkAngel]

Hello.

after various tests, measures, etc. I finally settled (for angles of 90°) all the fold tables (with deduction of bd fold) for each quarry.
so I have a folder with inside a file of excel for each folding quarry (10,12,16,20,22,25,35,50,80) repeated to divide the stainless tables from those of iron. all with radius 0.8 fold (I know that the rule is not that... bla bla r= thickness of the material... blah blah) I'm not the boss, we only have knives r=0.8 so we do or nothing, unfortunately)

question 1: Now every time I go to draw a piece that then will have to be folded select the table, the thickness and are in place, there is way to join the tables in a single file (or even 2, 1 for stainless steel and one for iron) so that from the model takes automatically material and thickness and I just have to decide the quarry?

question 2: Importing customer steps always happens that the fold radius is equal to the thickness, and solidworks warns me that it is not possible to change the radius of pre-built folds. so to overcome the problem I added various rays to the tables (0.5, 1, 2, 3, 4... etc.) all with the same bd factor; so even if the step file has different rays the development is always right according to the caves and knives we have., the problem arises when in the same step there are folds with different rays and for the radius that select I calculate the correct development, while for the folds that have a different radius apply the k factor and therefore wrong the development, even if the radius is present in the table. Is there any way to overcome this?

question 3: The calculation with the bending deduction does not develop the "piega and crush" how do I make him take a value that I decide?

Obviously I write here because after having called for 4 times the assistance (newmacut in case you were interested) the answers varied from: "I don't know" to "bhe obviously do not work well the tables, different factuals, arranged"

 

[Tantocattivo]

Hey, how did you do that? What kind of evidence did you do? cmq we also have only the knife 0.8 ^_^

 

[DarkAngel]

practically works like this: the bending deduction takes the external bending measures and then subtracts the value you put in the table.
then to do the tests and correctly fill out the table we cut pieces of various thicknesses the two sizes of the folds I arbri contrary decided to 100mm both and the fold to 90°
starting from the bending rule that says that a 90° fold removes from the sum of external measures 2x the thickness I have compiled the table.
design the piece on solidworks and laser cutting, then in fold was set the same quotas and occurs how wrong it is. the error brings it back to the table

to give you an example: 80/10 iron folds to 90° hollow 50, the folds are both 100mm therefore according to the rule of the bending: 100+100-8=184 development, at the time of the fold the piece was long of 2mm on one side. then in the table I replace the 16 value reported to the 90° fold with the 14 value, remade the calculation of development and folded the piece and is perfect.

Obviously you have to do tests x all new corners that you don't have in the table, this because solidworks simply makes a proportion in case it doesn't find any value for an unknown angle. in the case of first 80/10 iron the fold to 45° for solidworks is shortened of 7mm while in our case the measure is 3.75mm.

I leave you an image of the iron table, quarry 50

 

[Tantocattivo]

Thank you so much, very interesting, in a few days I place my results and see what happens.