Joe Hull wrote:

Right now I'm planning to fabricate a "Plain-Jane" tangential muffler.

Does

this look like the correct Bill-Of-Materials ?

ALL Inconel 625 AMS 5599F
1.  1 - .040 thick x 6" dia. X 10" long tube/pipe -OR- 19" x 10" sheet

(to

roll and weld              into a 6" dia. tube).

2.  2 - .040 thick x 6" x 12" (to cut two 6" round end caps)

3.  2 - 2.0" ID  sched 40 x 6" long pipe (exhaust manifold - welded to
existing plate)

4.  1 - 3" ID .040 wall x 16" long pipe (I'm a pusher - so I'm not

going

far)

I got a quote on sheet Inconel at about $22/pound - does that sound

like

it's in the ballpark?

Thanx,
Joe Hull
Cozy MkIV #991 (working on Engine & Cowling)
http://www.maddyhome.com/canardpages/pages/JoeHull/index.html

Yes to everything but you might have a problem going from thick wall
sched 40 pipe
to thin .040 inconel sheet.

Paul Lamar

"Joe Hull (Pilgrim Technologies)" wrote:

Paul -
You said that going from thick wall Sched 40 pipe to thin wall .040
Inconel sheet might be a problem.  Do you mean welding it might be a
problem? What is the "standard" thickness of the pipes coming from the
engine to the muffler?

Thanx,
Joe Hull

Yes welding might be a problem but a sever thickness change also
results in high temp gradients (temp differences) that lead to different 
thermal expansions. This in turn leads to cracks.

Paul Lamar
 
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