It is a hard, brittle material, and does not last forever. However it is easily machinable. It is more suitable for short-run tooling. Think of a stoneware plate as an example. It may not survive a hard impact, but I have dropped them to the floor and cringed, only to see it clatter around, but not break. They do break if you attempt to overtorque mounting screws onto them and then send them through the reflow. There has to be a little "give" so the differences in CTE between the clay fixture and the CCA does not cause the fixture to break.
-----Original Message-----
From: Ioan Tempea [mailto:[log in to unmask]]
Sent: Thursday, December 09, 2010 10:57 AM
To: Stadem, Richard D.
Subject: RE: [TN] FW: [TN] modelling material/dough for wave soldering
Hi Dean,
Sounds like THE SOLUTION for small prototype batches. I am amazed of how many new things I can still learn!
A few questions:
How long lasting a wave pallet made like this would be? Especially in LF solder.
Is the material fragile? Operators have a weird propensity to fixture dropping.
Thanks,
Ioan Tempea, ing.
Ingénieur Principal de Fabrication / Senior Manufacturing Engineer
T | 450.967.7100 ext.244
E | [log in to unmask]
W | www.digico.cc
N'imprimer que si nécessaire - Print only if you must
-----Message d'origine-----
De : Stadem, Richard D. [mailto:[log in to unmask]]
Envoyé : December-09-10 10:09 AM
À : [log in to unmask]
Objet : [TN] FW: [TN] modelling material/dough for wave soldering
Torsten, how did this turn out?
-----Original Message-----
From: Stadem, Richard D.
Sent: Wednesday, November 24, 2010 9:11 AM
To: [log in to unmask]; 'Torsten Hagge'
Subject: RE: [TN] modelling material/dough for wave soldering
Hi, Torsten
What you are probably looking for is Chavant Y2-Klay, or CM-70 or J-88.
http://www.chavant.com/new_site/index.htm
Y2-Klay is a good choice, it cures very hard is lightweight, and is easy to machine or tool after it is cured. It is an industrial modeling clay, and I have used it many times for design work.
It is also a low-sulphur clay. You do NOT want a high sulphur content, as it can cause certain finishes to react, especially immersion silver, ENIG, and immersion tin.
Please let me know what you chose, and how it works.
Thanks
Dean Stadem
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Torsten Hagge
Sent: Wednesday, November 24, 2010 7:42 AM
To: [log in to unmask]
Subject: [TN] modelling material/dough for wave soldering
Hi technetters,
has somebody knowledge about a modelling material/dough which can be used to build up fixtures for wave soldering process?
We have heard that it gives a material which can be placed over the components and which is hardened by the first solder process to be used for many cycles, any idea about type/vendor?
Thanks and best regards,
Torsten
i.A. Dipl.Ing.(FH)Torsten Hagge
tech. projectmanager
Kristronics GmbH
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Fax: +49 461 7741 642
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