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Anonymous Poster

Heat Treatment Fixturing

04/20/2006 11:25 AM

James Guerin writes:
Anybody out there know a suitable way of fixturing for heat treat 4 inch long (100mm) solid tool steel rods (dia 5mm). We currently use stainless steel mesh baskets but as our furnace load is 3000 parts this is killing our productivity (loading/unloading the fixtures). The process of loading could be automated with pick and place but the fixtures get severely warped due to soaking at 1175 degrees C - and this wrecks the consistency of the fixtures only allowing manual loading.
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Ron
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Join Date: Dec 2005
Location: Wisconsin USA
Posts: 824
Good Answers: 37
#1

Heat Treating Fixture

04/21/2006 9:47 AM

Have you considered ceramics? Look under "Machineable Ceramic" and see sites like http://www.morganadvancedceramics.com/materials/ma cor.htm or http://www.dynacer.com/PDF/nonoxideproperties.pdf. The RBSC (Reaction-Bonded Silicon Carbide) will handle 1350 C, and changes very little between machining "green" and finished state. Or consider getting LOTS more baskets, and having them loaded/unloaded offsite, perhaps by a local shelterd workshop or similar service place.

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Anonymous Poster
#2
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Re:Heat Treating Fixture

04/21/2006 10:04 AM

Thanks! I'll try those sites.
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