Hank Murrow on sat 15 dec 07
On Dec 15, 2007, at 2:42 PM, Melissa Schooley wrote:
> Hi everyone;
> I am looking for information on a machinable clay body.
> Does anyone know where I might find such info? or better yet, have
> a claybody recipe?
Coors in Hillsboro Oregon makes things which start out as powdered
alumin and are placed in a hydrostatic pressure vessel. After this
treatment, they are supremely machinable. They are then fired to
around cone 28. Cylinders for exotic gasoline engines, etc.
Sorry that this is not likely to help, but there it is.
Cheers, Hank
www.murrow.biz/hank
L. P. Skeen on sat 15 dec 07
what on earth is a "machinable" claybody?
L
----- Original Message -----=20
From: Melissa Schooley=20
To: CLAYART@LSV.CERAMICS.ORG=20
Sent: Saturday, December 15, 2007 5:42 PM
Subject: Machinable clay body
Hi everyone;
I am looking for information on a machinable clay body.
Does anyone know where I might find such info? or better yet, have a =
claybody recipe?
thanks.
Melissa Schooley
Raging Bowl Pottery
www.ragingbowlpottery.com
Fredrick Paget on sat 15 dec 07
>I am looking for information on a machinable clay body . Does anyone
>know where I might find such info? Melissa Schooley
Google: steatite machinble ceramics
Fred
--
Twin Dragon Studio
Mill Valley, CA, USA
Melissa Schooley on sat 15 dec 07
Hi everyone;
I am looking for information on a machinable clay body.
Does anyone know where I might find such info? or better yet, have a claybody recipe?
thanks.
Melissa Schooley
Raging Bowl Pottery
www.ragingbowlpottery.com
pdp1@EARTHLINK.NET on sat 15 dec 07
Hi Melissa,=20
What do you mean by the term 'machinable'..?
Since, for one thing, any Clay Body would be 'Machinable' if one had =
apropriate Tooling to Machine it ( assuming you mean post-fired, to =
whatever ^...)
So...would you elaborate?
Phil
l v
----- Original Message -----=20
From: Melissa Schooley=20
Hi everyone;
I am looking for information on a machinable clay body.
Does anyone know where I might find such info? or better yet, have a =
claybody recipe?
thanks.
Melissa Schooley
Raging Bowl Pottery
www.ragingbowlpottery.com
Melissa Schooley on sun 16 dec 07
The machinable ceramic we have been looking at is classified as a "machinable glass mica ceramic" that comes in bars and rods that can be put in mills and lathes and machined like metal. This stuff has already been fired when you buy it and requires no further firing after it has bee machined. This stuff is rediculously expensive and we were hoping there was a formula floating around out there in cyber-land that could help us out...
Hi Melissa,
What do you mean by the term 'machinable'..?
Since, for one thing, any Clay Body would be 'Machinable' if one had apropriate Tooling to Machine it ( assuming you mean post-fired, to whatever ^...)
So...would you elaborate?
Phil
l v
----- Original Message -----
From: Melissa Schooley
Hi everyone;
I am looking for information on a machinable clay body.
Does anyone know where I might find such info? or better yet, have a claybody recipe?
thanks.
Melissa Schooley
Raging Bowl Pottery
www.ragingbowlpottery.com
______________________________________________________________________________
Clayart members may send postings to: clayart@lsv.ceramics.org
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Fredrick Paget on sun 16 dec 07
>what on earth is a "machinable" claybody?
L
The mineral steatite also known as soapstone can be fired in a kiln
and becomes a hard ceramic.
The high grade soapstone ,mined in Italy I think , can be machined
with metal working tools - lathe ,drill, milling machine , saw .etc.
without damage to the tooling. There were four grades of Italian
steatite offered and they have a highly predictable shrinkage on
firing.
It is used to make prototype parts for heaters, toasters - you name
it - in development of new products. In production other means of
making the ceramic parts are used.
I see on the internet there are also some bodies being made from
scratch and not mined as a natural stone
.
When in Brasil years ago I bought a little carved soapstone anteater
and fired it some years later. It now resides on a curio shelf in
our living room. Perfect.
Fred
--
Twin Dragon Studio
Mill Valley, CA, USA
pdp1@EARTHLINK.NET on sun 16 dec 07
Hi Melissa,=20
Oh...
Well, this was new to me.
I know from my own very casual experiments, one can 'machine' any =
Ceramic using Diamond or Borazon or even other tipped Tooling, depending =
on hardness of the piece in question...
But I had never heard of 'Machinable Ceramics' as such.
I just did a few fast 'googles' and apparently it is also spoken of as =
being a sort of soft 'Glass' having a lot of Mica and Talc in it...
Here's one -=20
<<>>>
Composition=20
MACOR Machinable Glass Ceramic is a white, odourless, porcelain-like (in =
appearance) material composed of approximately 55% fluorophlogopite mica =
and 45% borosilicate glass. It has no known toxic effects; however, the =
dust created in machining can be an irritant. This irritation can be =
avoided by good housekeeping and appropriate machining techniques. The =
material contains the following compounds:=20
Approximate Weight
Silicon - SiO2 46%
Magnesium - MgO 17%
Aluminum - Al2O3 16%
Potassium - K2O 10%
Boron - B2O3 7%
Fluorine - F 4%
<<<<>>>
What are you wishing to make, or do, or is it a secret?
Sounds interesting..!
Phil
l v
----- Original Message -----=20
From: Melissa Schooley=20
The machinable ceramic we have been looking at is classified as a =
"machinable glass mica ceramic" that comes in bars and rods that can be =
put in mills and lathes and machined like metal. This stuff has already =
been fired when you buy it and requires no further firing after it has =
bee machined. This stuff is rediculously expensive and we were hoping =
there was a formula floating around out there in cyber-land that could =
help us out...
Hi Melissa,=20
What do you mean by the term 'machinable'..?
Since, for one thing, any Clay Body would be 'Machinable' if one had =
apropriate Tooling to Machine it ( assuming you mean post-fired, to =
whatever ^...)
So...would you elaborate?
Phil
l v
----- Original Message -----=20
From: Melissa Schooley=20
Hi everyone;
I am looking for information on a machinable clay body.
Does anyone know where I might find such info? or better yet, have a =
claybody recipe?
thanks.
Melissa Schooley
Raging Bowl Pottery
www.ragingbowlpottery.com
Steve Slatin on sun 16 dec 07
I think what you are looking for is a ceramic made with fully stabilized
zirconia and boron nitride.
See http://www.patentstorm.us/patents/7160825-description.html
for some of the details. But I don't believe that this stuff can be
readily replicated with ordinary craft-type equipment.
JM2C -- Steve Slatin
Melissa Schooley wrote:
The machinable ceramic we have been looking at is classified as a "machinable glass mica ceramic" that comes in bars and rods that can be put in mills and lathes and machined like metal. This stuff has already been fired when you buy it and requires no further firing after it has bee machined. This stuff is rediculously expensive and we were hoping there was a formula floating around out there in cyber-land that could help us out...
---------------------------------
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John Connolly on mon 17 dec 07
You might try contacting Kyocera. I not current with their product line, but they do make ceramic machine tools. The tools were very popular in Europe, but never caught on in the U.S. When I worked with them in the 1980s they were working with Ford and Izuzu on building a ceramic automobile engine. They could have some interesting answers.
Melissa Schooley wrote:
The machinable ceramic we have been looking at is classified as a "machinable glass mica ceramic" that comes in bars and rods that can be put in mills and lathes and machined like metal. This stuff has already been fired when you buy it and requires no further firing after it has bee machined. This stuff is rediculously expensive and we were hoping there was a formula floating around out there in cyber-land that could help us out...
Hi Melissa,
What do you mean by the term 'machinable'..?
Since, for one thing, any Clay Body would be 'Machinable' if one had apropriate Tooling to Machine it ( assuming you mean post-fired, to whatever ^...)
So...would you elaborate?
Phil
l v
----- Original Message -----
From: Melissa Schooley
Hi everyone;
I am looking for information on a machinable clay body.
Does anyone know where I might find such info? or better yet, have a claybody recipe?
thanks.
Melissa Schooley
Raging Bowl Pottery
www.ragingbowlpottery.com
______________________________________________________________________________
Clayart members may send postings to: clayart@lsv.ceramics.org
You may look at the archives for the list, post messages, or change your
subscription settings here: http://www.acers.org/cic/clayart/
Moderator of the list is Mel Jacobson who may be reached at melpots2@visi.com
______________________________________________________________________________ Clayart members may send postings to: clayart@lsv.ceramics.org You may look at the archives for the list, post messages, or change your subscription settings here: http://www.acers.org/cic/clayart/ Moderator of the list is Mel Jacobson who may be reached at melpots2@visi.com
John Connolly in Ensenada, Baja California, Mexico
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