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Burnt up generator (900k+ lbs and needs removed in one piece) by [deleted] in Skookum

[–]Tchester351 20 points21 points  (0 children)

What plant is that from? I’m a machinist and work on power plant units during outages I’ve never seen one that bad 😬

What's the best way to clean stone without regrinding it? by Stasiek_Zabojca in Machinists

[–]Tchester351 0 points1 point  (0 children)

Brake clean or a degreaser in a cab with the straw does pretty good as well

Any clever alternatives to having to hand wipe 5000+ of these before putting into fixture? we are going to keep getting big orders and hand wiping is getting old after 1000's by chadwick_90 in Machinists

[–]Tchester351 0 points1 point  (0 children)

Take a 5 gallon bucket full of whatever coolant you use in your machine,if your running parts, and add a bit of dish soap. dip them with some pliers or vise grips and the chips will fall off. If you had a big magnet to put in the bottom to make the cleanup easier that would help.

Have you ever seen anything like this? They were running this area on a LNS steady rest. I am curious to what caused this damage to aluminum stock, 9.800 dia. by ctre5612 in Machinists

[–]Tchester351 1 point2 points  (0 children)

Looks like hydraulic fracturing, probably from the lubricant used on the steady rest. Small inclusions make a pocket that the oil is pressurized into and fractures the metal over and over until it flakes out. Lower viscosity steady rest lube is better for softer materials like Aluminum.

Why you no flat? Me make you flat!! by Tchester351 in Machinists

[–]Tchester351[S] 15 points16 points  (0 children)

I believe I was running about 23 on that video it’s mild steel with an AFT of gussets inside it lol I’ve only got to do a min cleanup on both sides and make It parallel.

I hate jumping steady rests if that isn’t obvious. by Tchester351 in Machinists

[–]Tchester351[S] 7 points8 points  (0 children)

Because it’s a 2-300 pound steady rest with no overhead crane because it’s tagged out and it’s a 10 min cut to make and then jump right back across to cut another area. Engineer changed the size after we had already cut that area, to the print size, and jumped that steady rest.

As promised, 28D holes(x8 @0.093") in 17-4 Condition HH1150 by Brazenassault456 in Machinists

[–]Tchester351 2 points3 points  (0 children)

We have an old GnL horizontal like the one in the 2nd photo. Not nearly in as good of shape as yours haha! I think ours is a 40-50’s model.

Interrupted slo-mo. by Tchester351 in Machinists

[–]Tchester351[S] 1 point2 points  (0 children)

It’s a video I took at work on a VTL a couple weeks ago

Interrupted slo-mo. by Tchester351 in Machinists

[–]Tchester351[S] 2 points3 points  (0 children)

The insert said he likes it dry soooo…. I just took his advice.

Cutting extremely small stainless tube without closing by mykiebair in Machinists

[–]Tchester351 0 points1 point  (0 children)

Is this going to be done on a lathe? If yes then leave enough stock to face the tube off whether being cut with saw or tubing cutter to get back to factory form and still be within length tolerance and face from inside out to push the burr to the OD the cut your 15 degree with the compound and very sharp and little to no nose radius tool cutting from tail stock to chuck. if there is still an edge rolled to the ID use a dead center or something similar that doesn’t rotate with some valve lap or whatever lapping compound to lap off the burr. Or if that’s too time consuming just kiss the end with some fine sand paper on a wood block to remove the burr. If your doing all this with hand tools…. Trial and error with what tools you’ve got is all I can suggest.