- Joined
- Jun 24, 2010
- Messages
- 2,359
- Reaction score
- 931
I'm wondering out loud if it's feasible to make an intake manifold from more or less stock sections of tubing, kind of like this sketch. I'm hoping to avoid some funky bending from a single piece of tubing - filling with special bending alloys, heat conditioning the tubing, compound 3D angles using jigs etc. While I certainly appreciate the skill involved, I'm wondering if it can be reduced to more... uhhm... 'amateur' steps? ;D
In this example I assume 0.25" OD stainless tubing. It comes in various wall thickness increments ranging from 0.020" to 0.083". (I was figgering 0.035"). They offer stainless 304 & 316.
http://www.onlinemetals.com/merchant.cfm?id=312&step=2&top_cat=1
The only real bend would be a basic hoop, in this example 0.75" radius. I would just cut ~60 deg chunks from that. I would have a flange piece from flat stock on either end bolted in position. My hope would be to dry assemble the pieces so they joinded up flange-to-flange & then silver solder the joints to make one piece. (The real engine looks a lot like that anyway).
- could tubing like this be rolled to a hoop diameter this tight without splitting or badly oval-ing in the jig? Any links that help with design criteria in this regard?
- could one 'stretch' (swage - is that the right word?) an end so it would kind of interlock to the stock OD of the adjoining tube? Im guessing a butt joint would be a bad idea.
- any recommendation on which SS alloy?
In this example I assume 0.25" OD stainless tubing. It comes in various wall thickness increments ranging from 0.020" to 0.083". (I was figgering 0.035"). They offer stainless 304 & 316.
http://www.onlinemetals.com/merchant.cfm?id=312&step=2&top_cat=1
The only real bend would be a basic hoop, in this example 0.75" radius. I would just cut ~60 deg chunks from that. I would have a flange piece from flat stock on either end bolted in position. My hope would be to dry assemble the pieces so they joinded up flange-to-flange & then silver solder the joints to make one piece. (The real engine looks a lot like that anyway).
- could tubing like this be rolled to a hoop diameter this tight without splitting or badly oval-ing in the jig? Any links that help with design criteria in this regard?
- could one 'stretch' (swage - is that the right word?) an end so it would kind of interlock to the stock OD of the adjoining tube? Im guessing a butt joint would be a bad idea.
- any recommendation on which SS alloy?
