12-12-2015, 01:53 PM
Grinding Brass or Bronze
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12-12-2015, 02:06 PM
I would suggest having the sides and sole machined on a mill and then lap the surfaces on a granite plate to your desired surface finish.
12-12-2015, 05:46 PM
I would have TablesawTom do it on his machine's
Arlin
As of this time I am not teaching vets to turn. Also please do not send any items to me without prior notification. Thank You Everyone.
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12-12-2015, 06:32 PM
I suspect Bob has stated the answer. The raised step portion around the mouth is curious. I wonder if it was meant to be steel shod.
Blackhat
Bad experiences come from poor decisions. So do good stories.
12-12-2015, 07:28 PM
I think that raised step portion on the bottom was to ensure the mouth area wasn't starved for bronze when they made the pour. Without that the mold would have needed two sprues or the pour would have had to travel along the side walls only to fill everything.
Jim
http://ancorayachtservice.com/ home of the Chain Leg Vise.
12-12-2015, 08:56 PM
I have to ask, where does one find something as cool as that?
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When something has to be done, no one knows how to do it. When they "pay" you to do it, they become "experts".
12-13-2015, 02:14 PM
Flea market! I had to grab it even if it won't ever make it into rotation. Now i have to track down someone to grind.
12-13-2015, 02:34 PM
If you are not in a hurry I can mill it down but not till January or later, I'm working on a project right now that is occupying the mill and my time.
PM me if you are interested and we can talk over the details. Jim
http://ancorayachtservice.com/ home of the Chain Leg Vise.
12-13-2015, 04:55 PM
I've ground Titanium at work, but I have no idea how to grind something that big that isn't magnetic. Fixturing it would be a pain. But it's cool
12-13-2015, 05:17 PM
That's where a mill is nice. The brass would just load up a grind stone. The mill can clamp it in the vise and an end mill will cut it instead of grinding.
Jim
http://ancorayachtservice.com/ home of the Chain Leg Vise.
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