SNS 379 90mm Pin Bosses
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- čas přidán 21. 06. 2024
- The welding shop needed some help with cutting and machining some 90mm weld-in pin bosses from some 3-1/2"x6-1/2" heavy wall tubing.
#manualmachining #lathe #machineshop
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I know you are just doing a “hey Man” job but I know I’m not the only one who would love to see you put that drop piece of tubing in your hardness tester and see what the actual rC is.
Great fun, Adam! As a science type, I love to find excuses to measure something. How useful would a hardness test be, especially in a few different spots? I suspect that with all sorts of exotic machinery being manufactured these days, a lot of rather funky steel alloys might be mixing into people's scrap metal bins.
I miss this kind of content so much. I love this real manual machining and love your knowledge but more so the way you explain every aspect of what you’re doing and your thought process.
Always fun working with a mystery material. Add to that an unknown insert. Nothing like stacking the deck against yourself. I enjoy your CNC learning, but I enjoy manual machining better. Thanks for sharing.
I am sure I am not the only home shop amateur that gets some satisfaction watching a PRO struggle as much as we do !!! Love watching you manual work, it's absolutely the best !
Pro lol
I know CNC is a game changer but this traditional machining is far more interesting to me. But then I prefer steam engines to diesel or electric.
Adam, thank you for showing the screw ups. I learn a lot when you show the adversity and difficulty of the problem. So many channels don't show this kinda stuff. In the real world difficulties will be encountered so showing them is critical.
Counterfeit blades? Seriously the number of knock offs in every market, including materials like titanium is scary.
That welding shop is a good source of weird problems and show content.
We got all these expert machinists up in the comments yo
Great video, Adam, I learned a bucketload. Thank you for the lessons in perseverance and troubleshooting! All the best!
Still love watching you work on stuff thanks for sharing from uk
Like a good old fashioned SNS. Just missing the old wooden bench. 🙂
Great stuff, old school machining. Love it.
Just love these manual machining operations...🤘
This video right here is the kind of stuff that will keep me coming back to watch your videos! Thanks for such an interesting video...
I love how you got more pissed about the inserts fouling the finish than you did about losing the screw from your hook rule. Sparks flying. Great episode!
Awesome a man who takes pride in his work takes pride in himself
Nice one! Thank you abom79, getting it done!
Abom, you have answered several questions that i have had in this one video, Thanks.
thanks for adding the sound the saw makes. It helps hoby machinist like me.
Fascinating. Chocked full of great information.
Thanks for the show Adam 🍻
Questionable Material Steel vs Abom with a carbide blade...yeah...I am backing carbide here, nothing beats carbide!
Classic SNS. Love it!
Abom I know how you fill i was a tool and diemaker and machinest for 40years.. 83 years old now. i whatch all of your
.love them. keep sending. vidios.
THIS is quality ABomb material!
Way back in the day I used to make hooks and chains for GM. We cut 1 inch hot roll to length then forged them into hooks. The hot roll started having hard spots. Literally hunks of carbon in the rod. Had to use an abrasive saw to cut.
that mystery metal your buddy supplied you to be used as weld on 90mm pin bosses is probably some form of stress proof material....
Good to see a job where you make the best of not-so-great starting conditions. And I always enjoy seeing manual work when it makes sense. 👍
Great to see a SNS after a long while! And a great ome too.
Wasn't really an SNS without showing viewer mail and tools from his father/grandfather or flea market finds.
awesome video
Amazing machining. Excelent video, thank you
Right tool for the right job
Best Abom Video In Ages!!!
I wonder if they put the blade on backwards
No. You’d have to flip it inside out which would be almost impossible with that size blade.
Since I’m a professional video watcher, I’ll say you did a fine job!! Love watching you work Adam!!! Nice job!
Definitely enjoyed the video. Thanks as always for the good filming.
You did good Adam. Yes I did enjoy your videos and as usual thanks
Elephant in the room, the blades were put on backwards obv
I doubt that anyone would be that dumb.
@@ellieprice363 Ive seen it with bandsaw blades and circular saw blades. There is no reason when putting on the other replacement bandsaw blades they were then on the correct way, if you dont know the difference in the first place.
With as hard as that was to cut, it might have been worth while to toss it in a 500 degree F oven for a few hours to anneal it some.
I've had to do that with some cheap stainless that I've had to turn before.
I came to say the same thing ie try annealing it 👍
My eyeball sez that stuff was machining like a 4140HT in the lower Rockwell C range, or something similar. No forgiveness but always finishing beautifully. Decent carbon and alloy content, not enough hardness. Gooey. Prayers to the guy who has to weld it.
heh heh heh 😉
Great video, Adam! Nice job.
Thanks for sharing 👍
That alternate/extra ending was a nice touch.
Good manual lathe!
Years ago I asked a machnists while making cuts in angle iron some sections took twice as long to cut thru. Told me angle iron is mostly recycled steel and anything goes into the steel furnace .
Bed frames. They are the worst.
Rebar is the worst.
WOW! Frustrating day at the lathe. Thanks for showing me how to recover from this.
Great stuff!
Did you use your Rockwell test to see how hard it is
Thank you for sharing with us. Just right across the state line in Mobile.
Why didn't you use your hardness tester before machining the material to see if that was within spec for the material? Couldn't that impact the welding? I'm not a welder is why I asked.
hardness of the material will definitely change the welding parameters, you are correct
Thanks for verifying that for me. Ive done a few tack welds and run a couple of beads, thays it.
The hardness tester people weren't sponsoring the vidio the band saw mfg was
Material hardness is only an issue when welding if you’re trying to retain the hardness afterwards. The process of welding is going to heat the material up past critical, which will remove any hardness wherever the bead penetrated. Ductility can be a bigger issue, which is why pre-, interpass and post-heat in things like cast iron are so important.
The cut from the other bandsaw was not cut straight it took you several passes to straighten it out they might have a alignment issue
Another in the books!
That crusty scale on the OD looks like a real blade eater. It sure cut good, but my ears hurt through the TV. 😂
The teeth unzipping on a blade is a real phenomenon. As soon as that first tooth goes, the next one gets slammed and starts that chain reaction and all of the sudden you've got a blade with six halves of a tooth left.
I'd have gone at those embedded teeth with a shark wheel (tiny abrasive cutoff disc) in a die grinder
Great work. It,s always good to meany strings to your bow. Well done.
Test for Hardness on the waste end of the one with saw cuts in it. Maybe wrong shop. On the bandsaw carbide did it. How about a skip tooth or dual pitch - fine and wide gullet. I bet scrap steel and has bearing races that melted in to make the alloy harder.
How many other people are screaming that the screw fell on the back of the compound.
Good content Adam! Keep it coming. As others have mentioned as well, I'm definitely partial to the manual work but I also understand the need to have CNC capability in today's world.
Good vid. interesting see not perfect stuff and ways to sort it.
Adam "I am not one to tell somebody what they're doing wrong" well said. After all there is no need for you to do that, you have all the expert commentators below to tell everyone and anyone what is going wrong. LOL
He's been around a lot of journeyman machinists all his career and has learned not to presume he knows better. He knows there's often hidden information and something new to learn.
Most excellent.
This is the kind of stuff that finds me. The chaos ensues. 😅
good job Adam
Its unreal that blade isn't even deflecting all over the place. Love the look of a hefty, laser sharp cut of hardened steel !
Something that I saw and wasn't sure if you'd run into it. The hydraulic/air feed on these saws have a place where they drop when they are sitting on the stop. I usually had to push the saw back up to it's full height, and then let it go. This worked when the saw was set to cut a heavy feed rate so that it wouldn't crash the blade. Basically it would preload the hydraulic/air cylinder to keep it from dropping the blade onto the part. Kept me from chewing up blades and still cut fast.
I see the screw in your video. . Directly under your boring bar. . Clear as day. .
Nice initial break in.
Still well done job. Patience is the key and persistence.
That's what I'd call making sheet metal the hard way!
A.W.E.S.O.M.E., thanks a lot!
Great video Adam. Glad you did some more manual machining that is what made your channel. Hope to see more. THANK YOU. PS. keep on doing your bbq.
That was fun.
Hi Adam, greeting from "across the pond". Congratulations on an absolutely superb bit of turning and problems solving. Commentary "just the right amount", (short and to the point), with plenty of good working input. Lovely to see some classic turning again!.
Reminds me of something I made from an alloyed tool steel (I think something with chrom and molybdenum), it also produced a lot of blue stringy chips. It only started to behave once I got to smaller diameters with higher stepover and lower surface speed (I only have a small benchtop lathe).
I've run into plenty of hard spots in A36/A500 or equivalent, I've taken to calling it "mystery steel." It's often recycled material and if they threw in too much high carbon steel it'll do this. They're usually small spots though, just enough to peel off 3-4 teeth. I'm thinking it really is just a lemon batch, something like too many leaf springs in the brick of crushed cars they melted down for it.
We're so lucky... we got two outros...
That cuts like 4140 tubing. I always run atleast .014" feed for roughing to get chip control.
You know you need a new tool guy when you call and ask for Iscar and he sells you YG.
love it! Get pissed Adam!
Had that issue on a CAT machine trying to drill on some places. There were pretty soft spots, but also extremely hard spots. We're also having that lately on raw material as well on remelted steel.
we have been getting lousy 1018, really ductile wont break a chip. finish is great but its giving us a ton of grief with our iscar dr drills not breaking a chip, which normally cut great with fantastic chip control. we think its metallurgical, low sulfur and high aluminum content seems to be a recurring theme in the stuff that wont break a chip, the "good" stuff is high sulfur and nearly no aluminum
That chip is telling a story. I'd like to see a follow up from joe about how that welds out.
Hopefully they use a rather high preheat and wrap it up to slow cool. What material do you think it might be?
@@davidbennett288For me it's definitely an alloy steel this surface finish is not mild steel finish
@@tristansimonin1376 that's my take. I've seen that before were some alloys will work harden in a blink of an eye. *Effectively* not mild. No idea why though.
@@evil16v1 yes and with a carbide saw there is no problem to cut hard steel
From the looks of them chips I’d say that’s harder than you average mild steel. And it doesn’t finish out like that for me at least. Looks like some good material for some adapter plates or flanges. I hope it welds up alright.
we cant get 4140 hollow bar here in Aus but even at that it would still cut easy on a bandsaw. interesting to see what happens when it trying to be welded ?
This is the kind of Abom we come for. Thanks, Adam!
This is a problem with remelt steel. If there is a tap or some kind of vanadium steel in the mix that wasn’t stirred in well enough you’ve got extremely hard spots.
If you still can, please do a hardness test on the steel. I know nothing about machining besides what I've watched and seen, but to my musical ear that sound was off from a normal lathe work. There was like a high pitched ding in there and normally when watching and listening machining the cutting sounds constant (as one would believe a material be that's all the same composition). I'd like to see the hardness from both OD and the cut itself, just because curiosity.
Sometimes as a job trickles down to the Machine shop, the shop of last resort, it's the worst of fixing the previous fixes before actually doing the actual job that the part needed to begin with. Fortunately, Adam cut his teeth on just such jobs, all the "getter-outs" and "hey man" jobs that come to live or die on the machinist's job shop floor.
Perhaps when that first blade broke it left teeth in the cut and destroyed the second.
Oh man no kidding that carbide tipped band saw blade is screechy 😖, I could hear it way over here at the California Oregon border! 😂👍
if a cnc machine makes 10,000 parts runs super fine, puts in a new rod and everything goes wrong, then you know there is an old bike in the material . there may be hard points or the whole bar is hard, or the opposite long chip everything goes wrong, it's not the same as a manual where you change the parermeter according to what you see
No worries, those inserts will probably work for the high-speed CNC 😊
That PM TL-1660 is one sweet lathe....I hope you find that tiny Starrett screw during the clean up phase.
We have been turning a ton of tubing at our shop lately and you usually have to drop the sfm by like 40% and up the feed on that tubing and it still won't break the chip well
I'm suddenly in the mood for some Morse Pizza
That material, I would venture to guess, is Abrasion Resistant steel.
I'm thinking the other guy has a problem with his bandsaw. Something is bent/misaligned.
pushing saw to hard or put the blade on backwards need to try the new cert wita that speed and feed ,that your cert required
I have experienced that same blade destroying situation my self few years ago. 80 mm or just over 3” Bar stock had hard spots in it. I turned bar when it stopped cutting and it just kept stopping at same spot even after turning like there is small carbide pieces inside or something
Abom, I need that 6ft fan you got there for my 11x14ft room. It's hot and humid in NJ today. NJ is like FL but with slightly less humidity and slightly less bugs. lol
Looks like my chips from my Amazon special inserts lol. I’m just a hobbyist so I buy the cheap ones because I can never remember how to read the packs and which one I left on last. I remember you did videos on that a few years ago, but if I remember right I feel like you left out a couple things. I could also be a dummy though. The way that’s stringing up reminds me of stainless. Maybe he ran his saw to fast.
The need to leave a proper finish can be appreciated as somebody who loves machining things (I’m not a machinist) but, as a welder, there comes a time when it’s disheartening to weld something so beautiful in place…. Just knowing it’s going to be destroyed when the equipment starts getting used. Kinda like watching a veterinarian examine cattle leaving his Rolex on without gloves. Lol