Re: [hobbicast] Stamp -- In aluminum... Hardened.
- Hey there, C.-
Lurking on a couple of knife lists, & reading from the 2 big knife mags. (Blade & Knives Illustrated), they talk up the soaking molten salt baths pretty well. These guys are a combination of pros & fairly serious amatuers, but not many backyard hobbyists can afford to invest in them. Certainly I don't expect to have access to such a set-up any time in the foreseeable future. When I need a tool hardened, I resort to steel, & heat treat & quench as needed. detailed stamps can be engraved or etched from steel without unreasonable effort. A stamp made to strike a maker's mark into a blade blank while the blade is still in soft state is not uncommon. I doubt you could produce enough wear on one on leather to blur the details in 1/2 a lifetime.
Pacifist ...with occasional lapses.
From: C. <ceeann1@...>
Sent: Sun, April 18, 2010 1:49:59 PM
Subject: [hobbicast] Stamp -- In aluminum... Hardened.
I was reading the posts and is seems that all y'all are a bit more advanced than I am in making things from metal. But it occurs to me that a stamp for fairly soft materials like leather or wood could be cast from aluminum and then hardened. It would take a specific type of aluminum that would take hardening. We do this sort of thing a lot with aircraft aluminum at work. I really do not know how to translate that into the sort of tech that could be done at home.
From "0" to "T42" hardness is a furnace heat treatment... the Second part is from "T42" to "T62" is a salt bath age hardening process. It would seem the process might be of some interest to folks on this site.
If someone has incite into setting these processes up on a hobby scale I would love to hear it. I think the molten salt bath to heat treat metals in is very interesting on that sort of scale.
I will look into it myself in the near future but thought I would throw it out there for comment.
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