EmGo
Diamond
- Joined
- Apr 14, 2018
Expanding ! Cool. Wasn't it just a short time ago you were thinking about getting into your own production ?I'm looking at a '97 Hardinge GT27SP this week for $6k ...
Time flies when you're having fun
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Expanding ! Cool. Wasn't it just a short time ago you were thinking about getting into your own production ?I'm looking at a '97 Hardinge GT27SP this week for $6k ...
Full hard? Looks like those were tempered to 400°F or so based on the color, should be down to 62 HRC.
Edit: you probably meant through hardened
Consider a vibrating tumbling polisher. Throw a handfull in, turn on the machine and in an hour nicely polished parts.
Tom
I'd just use the same setup I use for processing metallic cartridges for reloading. The oxidation on these will rub off with a finger without too much effort so I would not want to use any kind of aggressive media.
Just for shits n grins, have you compared:
the cost of a2, making the parts, heat treating, and finishing
vs
cost of prehardened 17-4ph and machining?
It would be interesting to see.
I laughed when I saw these pics…..HARD! The first few replies to this post were all on the same train of thought as I. We all thought, since you did use the word taper, was that you wanted to make your own specialty “Taper Pins” which are typically used to lock round parts fitted through another part vertically, such as a gear on a shaft. What you have there is an angle down to 1 mm radius. My question is this. What is the thumb, set screw made of and is it hardened?
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