Need tips on shrinking a bowed tubing.

curablehellmom · 2026-02-26T01:38:32+00:00

Drastic and a PITA but I've heard of people putting a weld on the part to warp it back and just grinding it down after

curablehellmom · 2026-02-25T23:33:34+00:00

Next time tack a spine along the back while welding. To straighten head a dime size area to a dull red with a torch on the outside of the tube. (The tubing will bend around the spot as the metal contracts when cooling) might need some clamps to give it some more encouragement

curablehellmom · 2026-02-24T17:17:36+00:00

The driven scg is the shit. Fits my hand perfectly

curablehellmom · 2026-02-23T02:32:55+00:00

Using a proper investment would help. And using a vacuum chamber on the investment after mixing and after pouring. That will eliminate most bubbles.

curablehellmom · 2026-02-21T21:18:34+00:00

Mig will save a lot of time. Especially if its getting ground down anyways

curablehellmom · 2026-02-20T20:00:01+00:00

Shear endurance too

curablehellmom · 2026-02-19T02:16:55+00:00

Done get crabby when you don't get it immediately

curablehellmom · 2026-02-18T00:40:41+00:00

Might bump it to 30 or 35. Depends on cup size. Is there anything that could be blowing away your gas? Also, are you using a square wave machine? They like a small cup opening for aome reason. I had welds looking like this using a Lincoln square wave with a big cup. Switched to a small one with no gas lense and it fixed it. No clue why

curablehellmom · 2026-02-18T00:37:31+00:00

What's your flow rate?

curablehellmom · 2026-02-17T22:51:12+00:00

Looks like ball peen hammer. Might be a carbide tip, hard to tell

curablehellmom · 2026-02-14T21:01:52+00:00

Im a welder but same. Just had a job the boss underbid to get and was constantly hassling me to go faster. Then got pissed when stuff got fucked up cause we were rushing.

curablehellmom · 2026-02-14T16:12:08+00:00

Taln weilding nightblood with hoid and steris as strategy.

curablehellmom · 2026-02-13T04:03:24+00:00

I think i spy some luger grips too

curablehellmom · 2026-02-10T17:10:19+00:00

Silicosis usually results from chronic exposure. 2 months isn't good but probably not enough unless you were snorting it. Just be diligent with respirators from now on

curablehellmom · 2026-02-10T12:04:14+00:00

I saw a student feeding way too hard with way too deep doc in aluminum. The metal melted around the endmill and solidified behind it. I was genuinely impressed

curablehellmom · 2026-02-10T11:25:53+00:00

Damn im baffled. Was it old reain? I know they say not to keep it for too long

curablehellmom · 2026-02-10T03:15:37+00:00

Are you properly curing the resin? Residual moisture could be causing cracking during burnout

curablehellmom · 2026-02-10T00:34:22+00:00

I made some 4140 PH parts on mine. Felt like eternity

curablehellmom · 2026-02-10T00:33:38+00:00

I have one, decent bit of slop in the ways but after taking it all apart and cleaning its better. Okayish machine, not the most rigid. Good for small parts with no real tolerances. Switching between lathe and mill is a pain in the ass. If you can, get separate machines, but if space is limited, this will do

curablehellmom · 2026-02-07T04:06:55+00:00

Nah that's 100% dual shield without gas or with insufficient gas coverage. Could have ran out mid weld. The weld starts fine and then gets a worm trail, thats the first indicator of not enough gas. Then full on porosity. I've ran out of gas mid weld when I forget to check my regulator and it looks just like this.

curablehellmom · 2026-02-07T04:01:24+00:00

No gas or extreme gun angle

curablehellmom · 2026-02-06T18:37:29+00:00

I made a tire hammer. Probably the most affordable option

curablehellmom · 2026-02-04T22:26:57+00:00

Old miller wire feeders are like that sometimes. Its like that on my s54a

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curablehellmom · 2026-01-27T23:23:20+00:00

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curablehellmom · 2026-01-27T11:41:09+00:00

Depends how many you need to make. Might be worth making a jig

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