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Chemgold Casting Article in Jeweller Magazine

Chemgold Casting Article in Jeweller Magazine

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June 11, 2015

Chemgold Casting Article in Jeweller Magazine Chemgold Casting article in Jeweller Magazine.

What are your strengths and unique
selling points?
Our strength is our passion for supplying
exceptional quality and service in casting, CAD
and 3D printing. Being a family-run business
ensures our customers receive personalised
attention and an accessible approach. With a
combined knowledge of more than 90 years
in casting, our customers can be confident
they are being looked after by the most
experienced casting company in Australia.
Our team of precious metal specialists and
engineers use the most advanced casting and
3D printing technology to achieve the best
results for our customers. Reliability, flexibility
and experience in precious metals is critical
when selecting a company for casting.
 
How long have you operated in the
casting industry?
As a family-owned business we have been in
the industry for more than 40 years, with no
change of ownership.
 
Is all work cast in Australia, or is some
partially done offshore?
We pride ourselves on the fact that all casting
is completed in Australia, which means we are
supporting our local industry. We are handson
at every stage in production to ensure our
customers receive the highest quality product
and service.
 
Can you cast all common alloys of silver,
9ct, 14ct, 18ct, platinum and palladium?
We cast silver, all gold alloys, palladium,
platinum, brass and bronze five days a week.
We also produce specially designed alloys for
the engineering and scientific industries.
 
Do you offer Computer Aided Design
(CAD) services?
Our services include a complete one-stopshop
for CAD and 3D printing - designing,
printing, casting, moulds, finishing and
setting. We guarantee the smoothest surface
finish possible using DWS technology. Our
CAD team is extremely skilled with each
person qualified in jewellery.
 
Do you automatically rectify CAD
problems, or charge separately?
We analyse each file to minimise printing
and casting issues. There are a few basic
rules to follow and if we notice problems
our technicians will make adjustments at no
charge to avoid delays. If the changes will
impact the design we contact the customer
to discuss the most efficient and economical
solution, which may involve a fee.
 
What is your copyright policy regarding
customer supplied CAD files?
A unique serial number is created for each
design. Protecting the intellectual property
of our client's designs is extremely important,
which is supported by a considerable
investment in the security measures followed
in the company.
 
Do you offer moulding services?
We supply standard, low shrink and nonshrink
cold moulds. Alternatively, if the
original design was created in CAD, customers
can take advantage of our reduced fees for
re-prints.
 
If so, who owns the final moulds?
Chemgold guarantees that moulds we
produce will be used for each client's
exclusive use.
 
What is the typical turnaround time for
creations if:
Customer supplied wax: Next day for all alloys -
Monday to Friday.
Customer CAD for print or cast: 2 days from the time CAD file is received.
Customer sketch for CAD and cast: We
guarantee our customers will receive images
in 3-4 days and castings 2-3 days after image
approval.
 
Do you have a high success rate on casting
volatile metals (i.e. palladium)?

We have high success rates with all alloys,
especially palladium, and we have developed
our own stable formula that negates any
reactivity in the melting and casting process.
We are specialists in platinum.
 
What is your recast policy if items are
porous or faulty upon receipt?
Chemgold has a reputation for producing
excellent quality. Our customers' success is
ours and if the product is faulty we make it a
priority to re-produce it immediately.
If a customer provides wax, are there any
materials not accepted for casting?
There are certain materials that won't give
satisfactory results i.e. some types of resin,
plastics, woods and even waxes with different
chemical compositions, which could be
hazardous to the casting process. For these
types of materials, rubber moulds are
recommended.
 
Are there any Polymer/ABS/SLA materials
you do not accept for casting?
There are certain types that are not suitable
for burning out such as ceramic-based
polymers. They cannot be burnt out because
they are filled with nano particles of ceramics
and calcium so you'll be left with a very rough
casting.
 
If so, can you make that determination
prior to it going onto a tree and the
casting failing?
Yes, but unfortunately not all the time, as we
don't always know the materials' source and
some materials are very similar in appearance.
 
Do you offer RTV for suspect waxes/
polymers to protect against failures?
Yes, a RTV is offered but it's really not necessary as we produce everything internally. On the rare occasions that something goes wrong we can always redo the work immediately because we're growing polymers and printing thermoplastics for our customers. If we think a customer's hand-carved wax could have some inclusion, lemel or air bubbles, we'll either repair it in-house or offer to make a nondestructive mould of their piece as a back-up precaution.

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