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 !
Those are the kind of videos I like. No fancy stuff, just real world scenario. I'm a machinist myself and I felt little less alone by watching this video cause it shows what most of us have to do every single day. Solving other people problems by having to have more problems
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.
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.
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.
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!
I used to transport heavy walled tubing like that, to various companies in England and Scotland, the ones in England were typically JCB Depots for hydraulic rams, the ones to Scotland were for Oil Rig drilling tubes, I begged a few bits for home, they welded well and certainly machined well too.
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.
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!.
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.
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 ?
I use a casting cutoff blade that is special made for cutting castings ,they work great on stuff like that, i have been using one for over two years and use it just for tough stuff.
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.
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.
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 .
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.
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.
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.
You (and your customer) have a material problem. I would guess that stuff is rC 45. Did you try it on a hardness tester? I wouldn't weld it without further identifying the material. I'd expect it would Crack under weld without 700⁰ preheat.
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.
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.
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
Greetings from England big man. I've been watching the channel for years and i don't think I've seen you this frustrated! Or as close to frustrated as you get, possibly the most laid back guy on yt. 😎
I am a factory Iscar Rep in Southern IN/Kentucky. IC8250 is a great all around turning grade. Have you been able to try any of our newer F3P and M3P chip formers? They are great for chip control depending on your application. Your area Rep should be able to get you some samples. If not, please let me know and I will send you some! I love watching your videos!
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.
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
@@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.
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.
Having machined enough boiler tubes over the years like stainless, low alloy, medium, and high alloy carbon steel, this material almost looked like it could be 9 chrome. Giant pain in the butt!
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
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.
![I.N "HALLUCINATION" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/n5B5q1Hwt_U/mqdefault.jpg)
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
This is the OG abom kind of videos I like!
Those are the kind of videos I like.
No fancy stuff, just real world scenario.
I'm a machinist myself and I felt little less alone by watching this video cause it shows what most of us have to do every single day.
Solving other people problems by having to have more problems
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.
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.
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.
Great video, Adam, I learned a bucketload. Thank you for the lessons in perseverance and troubleshooting! All the best!
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...
Great stuff, old school machining. Love it.
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.
Like a good old fashioned SNS. Just missing the old wooden bench. 🙂
Did you use your Rockwell test to see how hard it is
Still love watching you work on stuff thanks for sharing from uk
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.
Since I’m a professional video watcher, I’ll say you did a fine job!! Love watching you work Adam!!! Nice job!
Awesome a man who takes pride in his work takes pride in himself
thanks for adding the sound the saw makes. It helps hoby machinist like me.
Thanks for posting these videos. Even though I'm not in the trade there is still knowledge here that crosses over!
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!
We got all these expert machinists up in the comments yo
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.
Abom, you have answered several questions that i have had in this one video, Thanks.
I used to transport heavy walled tubing like that, to various companies in England and Scotland, the ones in England were typically JCB Depots for hydraulic rams, the ones to Scotland were for Oil Rig drilling tubes, I begged a few bits for home, they welded well and certainly machined well too.
You did good Adam. Yes I did enjoy your videos and as usual thanks
Definitely enjoyed the video. Thanks as always for the good filming.
Best Abom Video In Ages!!!
Just love these manual machining operations...🤘
Good manual lathe!
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.
Nice job work video. Thanks Adam
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!.
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.
Thanks for the show Adam 🍻
Questionable Material Steel vs Abom with a carbide blade...yeah...I am backing carbide here, nothing beats carbide!
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 quality ABomb 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. 👍
That welding shop is a good source of weird problems and show content.
I use a casting cutoff blade that is special made for cutting castings ,they work great on stuff like that, i have been using one for over two years and use it just for tough stuff.
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.
Nice one! Thank you abom79, getting it done!
WOW! Frustrating day at the lathe. Thanks for showing me how to recover from this.
That cuts like 4140 tubing. I always run atleast .014" feed for roughing to get chip control.
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.
I had a feeling you'd bump it in another 5 thou. Good job.
Nice and clean 😊
Best regards from Greece
John Grizopoulos retired machinist
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.
Amazing machining. Excelent video, thank you
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 😉
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 👍
Counterfeit blades? Seriously the number of knock offs in every market, including materials like titanium is scary.
Could it have been tool hardened from a dull blade?
You (and your customer) have a material problem. I would guess that stuff is rC 45. Did you try it on a hardness tester? I wouldn't weld it without further identifying the material. I'd expect it would Crack under weld without 700⁰ preheat.
hardness and PMI would answer a lot of questions for sure
Great video, Adam! Nice job.
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.
That PM TL-1660 is one sweet lathe....I hope you find that tiny Starrett screw during the clean up phase.
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.
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
Greetings from England big man. I've been watching the channel for years and i don't think I've seen you this frustrated! Or as close to frustrated as you get, possibly the most laid back guy on yt. 😎
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.
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
It's amazing, the blogger is really creative and worth watching
I am a factory Iscar Rep in Southern IN/Kentucky. IC8250 is a great all around turning grade. Have you been able to try any of our newer F3P and M3P chip formers? They are great for chip control depending on your application. Your area Rep should be able to get you some samples. If not, please let me know and I will send you some! I love watching your videos!
Right tool for the right job
awesome video
that mystery metal your buddy supplied you to be used as weld on 90mm pin bosses is probably some form of stress proof material....
Classic SNS. Love it!
Rockwell test ? Looks acts hard when machined to me.
Great work. It,s always good to meany strings to your bow. Well done.
Thank you for sharing with us. Just right across the state line in Mobile.
Good Job, keep up the good work.....
Thanks for sharing 👍
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.
All watch at 32:10 and take Adams advice😮
good job Adam
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
Fascinating. Chocked full of great information.
I don't know much about different types of metal. I'm just a hobby machinist. I'm curious if he could have tempered it to fix this issue?
I think you mean annealed. I was wondering that.
You mention 'mild steel' during your commentary, but if it really work hardened, then probably some sort of alloy, right?
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.
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 guess there was some stress in the material that clamped down on their band saw blade causing it to bind up and break teeth?
Where's the finished Hardtail Vise? Love that project!
Need a chip removal hook?? Instead of needle nose pliers?
Having machined enough boiler tubes over the years like stainless, low alloy, medium, and high alloy carbon steel, this material almost looked like it could be 9 chrome. Giant pain in the butt!
That's what I'd call making sheet metal the hard way!
Still well done job. Patience is the key and persistence.
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
First time I have seen ABOM stressed and understandably.
That alternate/extra ending was a nice touch.
Its unreal that blade isn't even deflecting all over the place. Love the look of a hefty, laser sharp cut of hardened steel !
try the tungaloy AH120 cnmg inserts, theyre great inserts.
UF is a finishing chip breaker.. you need either UG for general or UR for roughing
I don't understand why you didn't use your hardness tester to verify the "hardness" question !
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.
I wonder if it's high energy pipe such as p91
If so that opens up a whole can of worms regarding welding particulars.......
If sections of the part were work-hardened from the band saw, doesn't that mean, for sure, that we're not dealing with mild steel?