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PostPosted: Wed Nov 21, 2007 12:50 pm 
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I believe for casting, adding some percentage of new gold to the melt will help the porosity issue.


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PostPosted: Wed Nov 21, 2007 1:10 pm 
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Hi Carrie:

Sounds reasonable to add new gold as one of our suppliers up here recommends adding a percentage of new sterling shot to a remelt to deal with the porosity problem :)

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PostPosted: Wed Nov 21, 2007 1:14 pm 
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Carrie wrote:
I believe for casting, adding some percentage of new gold to the melt will help the porosity issue.


Carrie,
yes it can help but, due to the new alloy development it can happens that some alloy contains a particular kind of element (even in low percentage) that its incompatible with other alloys contained in other pieces. the result can made a huge porosity :? or....nothing. good old times when yellow gold was only pure gold, silver and copper...! :D
and just for the record, i'm talking about 750/000 ct gold (the only title i made besides a little part of 850/000 for particular clients), so the alloy impact is less than lower titles...

alberto


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PostPosted: Wed Nov 21, 2007 7:23 pm 
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Quote:
good old times when yellow gold was only pure gold, silver and copper...!

I still only use those components. :) And palladium for white gold. The bangle is hand made, not cast .Casting old rings and stuff is not a good idea, but handworking them is OK.
Image
This one Larimar cab, made and sold
and
Image
This one finished today. Goes out tomorrow.18ct reposse white and yellow gold with a piece of carved jet. For a GIANT of a guy.Size 16. Its like a baby bangle.

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PostPosted: Thu Nov 22, 2007 4:19 am 
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Quote:
I still only use those components.


I still only use this components too! :D but i'm not equipped for casting big pieces so, when i need to rely on external sources i know they use more sophisticated alloys.
for white gold i use both palladium or special nickel-free alloy.

alberto


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PostPosted: Thu Nov 22, 2007 12:51 pm 
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well i'll try to share some pics...

Image
Image
Image

alberto


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PostPosted: Thu Nov 22, 2007 12:56 pm 
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oops, maybe they're too big :oops:
however this is a white gold ring/pandant.
the ring can be pulled and it can be wear as pandant using the little oval ring hide inside the mom fish.
the son is not fix to his mom but free to move a little.
750/000 white gold, diamonds, white and black rhodium.
design: Massimiliano Arriga

ciao

Alberto


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PostPosted: Thu Nov 22, 2007 1:33 pm 
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OMG Alberto, those are incredible! THanks for sharing!

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PostPosted: Thu Nov 22, 2007 2:44 pm 
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ok, here's a pair of earrings:
750/000 white and yellow gold (rubies settings prongs). diamond and rubies. this is a bad pic however... :?
Image

750/000 white gold diamond ring. engraved.
Image

No casting on these pieces, ONLY handmade.
ciao

alberto


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PostPosted: Thu Nov 22, 2007 3:45 pm 
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Super nice work dude.How long does it take you to engrave and set such a ring? And is that black enamel in the ring?. ( the photo is a bit unclear) Or is it pierced right through? Anyway, good classical work! :)
Hans

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PostPosted: Thu Nov 22, 2007 3:56 pm 
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Hi Hans,
i've don't set the stones by myself, we have stone setter for this, i've only built and engrave. it's pierced right through, not enameled; what about mom&son fish above?
ciao! :D

Alberto


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PostPosted: Fri Nov 23, 2007 3:45 am 
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I love the "Mom and fish"! I also particularly like the idea of jewellery that can be used for more than one thing.


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PostPosted: Fri Nov 23, 2007 10:48 am 
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Very nice Alberto! Love the fish and little fish. And that ring with pierce work is just lovely. Do you ever take photos of your work in progress? It would be fun to see some of these pieces in different stages of construction.


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PostPosted: Fri Nov 23, 2007 11:43 am 
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Thank you Carrie,
i'm glad you like my work.
Unfortunately i've never tought to take pictures of working progress (i've not much time.... :roll: ) but, never say never.
i made a demontration piece in silver for a conference, i'will take a pic (when i remember where is it hidden :? ) and post.
ciao!
Alberto


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PostPosted: Fri Nov 23, 2007 12:18 pm 
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Here are some photos of a bracelet that our custom jeweler created. He gave me permission to post them.

Image

Closeups of the outside:
Image

Image

Image

Closeups of the clasps:
Image

Image

Closeups of the inside:
Image

Image

Image


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