[TheForge] filling pipe with sand to bend

[Greg Thues]

I've also done this, one of the problems I ran in to was getting the pipe to hot I melted the sand and turned it into glass which then while cooling warped the pipe

Yours sincerely
     Greg Thues 

On Nov 6, 2012, at 8:35 AM, Andy Gladish <anjgladish at gmail.com> wrote:

> Has anyone out there tried this?
> I've got a curved schedule 10 1 1/4" nominal railing that needs a
> transition piece between two sections- this will be a curve that changes
> direction by 15 deg. in about 11". (that's a 42" radius)
> 
> I'd have to bend it around a form or make some wooden dies and use a press,
> but if it's hot it seems like it would distort unless the dies are shaped
> just right.
> 
> I'm worried about distortion if I roll it cold OR hot....
> 
> Then after it's done it needs to get to a brushed finish- will muriatic
> acid do that, or is it better to try to do it cold so there's less cleanup?
> Or perhaps I can just grind and sand it clean?
> 
> Thanks for any ideas!
> 
> -- 
> Andy Gladish, Element Fe Metal Studio
> Blacksmithing and Blades
> 7141 Guemes Island Road, Anacortes, WA 98221
> Phone: 360.202.1160
> Andy at ElementFe.com
> 
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