Posted: 08/07/2010 3:15 AM Post subject: Hybrid Aluminum Pipe Warping
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Joined: 24 May 2007 Posts: 39 100.32 Spud Bux
I have an aluminum pipe that I sent for milling. This pipe is the body of my semi-auto cartridge-fed hybrid and I milled it because I had to cut a hole for the spent-cartridge ejection port.
After I received my milled pipe from the workshop, my cartridge no longer slides through it (it gets stuck somewhere in the middle). I asked around and gathered that the milling of a pipe will cause the physical bond of the pipe to weaken and therefore causing the pipe to warp inwards.
My question is, can anything be done to the pipe so that my cartridge can slide through it again?
you can have get a machinist to bore it out, tho it probly be expenive.
idk how much do most machinist charge, it it hourly or how hard what you need is.
It may be a result from stress in the aluminum. When it is machined, the stress is no longer balanced and the part looses it's shape. You may just have to rework it somehow.
It may be a result from stress in the aluminum. When it is machined, the stress is no longer balanced and the part looses it's shape. You may just have to rework it somehow.
this may sound stupid, but would annealing it help? or is that like steel only??
It may be a result from stress in the aluminum. When it is machined, the stress is no longer balanced and the part looses it's shape. You may just have to rework it somehow.
this may sound stupid, but would annealing it help? or is that like steel only??
Annealing, not exact but close. I know you can stress relieve steel, unsure about aluminum. I'd say it's just been physically deformed (ie bent) and stress relieving wouldn't help much anyway.
It may be a result from stress in the aluminum. When it is machined, the stress is no longer balanced and the part looses it's shape. You may just have to rework it somehow.
Aluminum is well known for walking as it is machined. When used to an advantage, this is used to make spun aluminum shapes.
If the cutting tool is slightly dull, the aluminum tends to respond as this video shows of the spinning process. The fix is to machine, polish, sand or other fashion, remove the aluminum that moved to where it does not belong.
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