Ceilidh ... Re: Talk to me, Dar! (and anyone else who wants to)

Hydraulic Die Forming Discussion Group

Re: Talk to me, Dar! (and anyone else who wants to)

On Tue Nov 26, Darren de Lacy wrote
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>>G'day guys,
>I have designed a single shape that interlocks with multiples of itself, (a tesselation - I haven't lost everyone yet have I?). I am looking at the possibility of producing multiple tiles of this shape with the aid of a blanking die. these tiles would be punched from 3mm (1/8") aluminium sheet.
>My first query- This tile is approx. 10cm (4") square, and 1/8" thick. Does the 20 ton press provide enough force to punch out such components?
>second query- For this tile design to lock together with others of it's kind, the accurate piercing of the original tool is obviously paramount. Does Sheltec often make blanking dies that demand this degree of accuracy?
>Third query- If Dar wasn't good enough to make this die, and I had to do it myself (just talkin' bollocks,Dar!), What thickness steel would I start with? I understand that it would need to be at least 1/8", but past that I've no idea.

>Thanks!
>Darren

Ok, that ticked me off..... it's 'Sheltech ', ok? (^:#

The other thing, about not being good enough, that I can live with.
I can be extremely close, even 'perfect' for almost all normal applications , and to almost all appearances ('member , I do 'em manually,without machine guidance) , but you need machine precision
for such tesselated (been a while since I heard that one ... (M.C.Escher)) pieces to fit. I tried it once with a puzzle piece and it wasn't quite close enough.

I suspect that 20 tons would do it ,but maybe not!.

5/32" steel is the thinnest availible adequate thickness for that.
I haven't tried that on 1/8" , so if ( what 'if'??...."WHEN"!!)you
have it cut on a wire edm, you might as well go ahead and use 3/16"
steel, and make a really long hinge, maybe 8" . He he he...... that
will be a hefty die. Might look into just having the al. parts themselves edm'ed. Have fun on that one.

Wed Nov 27