Machining 90mm Pin Bosses - SNS 379

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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[@samuelclubb9529]

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.

[@tbw21007]

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.

[@stuartschaffner9744]

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.

[@daniele3275]

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

[@patrickcolahan7499]

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.

[@jaybailey3518]

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 !

[@marley589]

Pro lol

[@jondavidmcnabb]

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.

[@millzee60]

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.

[@DaGerardeau]

This is the OG abom kind of videos I like!

[@powerq21]

Great video, Adam, I learned a bucketload. Thank you for the lessons in perseverance and troubleshooting! All the best!

[@myname4516]

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.

[@Awegner176]

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.

[@a24396]

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...

[@bernardwright2420]

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.

[@iangriffiths9840]

Like a good old fashioned SNS. Just missing the old wooden bench. 🙂

[@RGSABloke]

Great stuff, old school machining. Love it.

[@johnscott2849]

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.

[@guygfm4243]

Still love watching you work on stuff thanks for sharing from uk

[@89firebird]

Awesome a man who takes pride in his work takes pride in himself

[@dondotson4604]

thanks for adding the sound the saw makes. It helps hoby machinist like me.

[@TheMooster845]

Since I’m a professional video watcher, I’ll say you did a fine job!! Love watching you work Adam!!! Nice job!

[@Convict78]

Just love these manual machining operations...🤘

[@plainnpretty]

Nice job work video. Thanks Adam

[@lowcashranch1412]

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!

[@ernestrhoades5147]

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.

[@carlwhite8225]

Abom, you have answered several questions that i have had in this one video, Thanks.

[@KJ6EAD]

That welding shop is a good source of weird problems and show content.

[@andymaltby4518]

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!.

[@rexmyers991]

WOW! Frustrating day at the lathe. Thanks for showing me how to recover from this.

[@martineastburn3679]

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.

[@support2587]

Counterfeit blades? Seriously the number of knock offs in every market, including materials like titanium is scary.

[@RobertGracie]

Questionable Material Steel vs Abom with a carbide blade...yeah...I am backing carbide here, nothing beats carbide!

[@TreySully]

Thanks for posting these videos. Even though I'm not in the trade there is still knowledge here that crosses over!

[@kiwishamoo6494]

We got all these expert machinists up in the comments yo

[@frfrpr]

Definitely enjoyed the video. Thanks as always for the good filming.

[@skwerlz]

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.

[@ΓιαννηςΓριζοπουλος]

Nice and clean 😊 Best regards from Greece John Grizopoulos retired machinist

[@toms.3977]

I had a feeling you'd bump it in another 5 thou. Good job.

[@scott.lindroth]

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. 👍

[@garbo8962]

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 .

[@MotoRestoFL]

Bed frames. They are the worst.

[@ellieprice363]

Rebar is the worst.

[@hemanthharrilall6469]

You did good Adam. Yes I did enjoy your videos and as usual thanks

[@Danglebarry62]

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.

[@apistosig4173]

heh heh heh 😉

[@courtney123a]

Great to see a SNS after a long while! And a great ome too.

[@kindabluejazz]

Wasn't really an SNS without showing viewer mail and tools from his father/grandfather or flea market finds.

[@robdixon945]

Thanks for the show Adam 🍻

[@AmiPurple]

Nice one! Thank you abom79, getting it done!

[@kennyrmurray]

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.

[@ernerstowerdum3942]

Amazing machining. Excelent video, thank you

[@rockerpat1085]

Best Abom Video In Ages!!!

[@MealTeam6_]

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!

[@SeishukuS12]

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.

[@yooochoooob]

I came to say the same thing ie try annealing it 👍

[@ilaril]

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.

[@euclidallglorytotheloglady5500]

THIS is quality ABomb material!

[@adimarcu4334]

Good manual lathe!

[@peterlee8982]

Great work. It,s always good to meany strings to your bow. Well done.

[@jwboilermaker]

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!

[@oldpup2182]

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.

[@davidbennett288]

hardness of the material will definitely change the welding parameters, you are correct

[@oldpup2182]

Thanks for verifying that for me. Ive done a few tack welds and run a couple of beads, thays it.

[@braddobson2060]

The hardness tester people weren't sponsoring the vidio the band saw mfg was

[@SergioPena20]

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.

[@rascalwind]

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.

[@geraldestes2470]

that mystery metal your buddy supplied you to be used as weld on 90mm pin bosses is probably some form of stress proof material....

[@ericsandberg3167]

That PM TL-1660 is one sweet lathe....I hope you find that tiny Starrett screw during the clean up phase.

[@LablnberGaunt]

It's amazing, the blogger is really creative and worth watching

[@simcoespring]

awesome video

[@snifitall]

Thank you for sharing with us. Just right across the state line in Mobile.

[@sunelarsen]

Good vid. interesting see not perfect stuff and ways to sort it.

[@HolzwurmBW]

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.

[@markramsell454]

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

[@wprobe]

Did you use your Rockwell test to see how hard it is

[@davidberry1338]

Right tool for the right job

[@mjshorty19]

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

[@heliarcweldandmachine]

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 ?

[@TheJohndeere466]

That cuts like 4140 tubing. I always run atleast .014" feed for roughing to get chip control.

[@tedsaylor6016]

Adam, you might (this is just a suggestion) want to find a cheap and slooow cordless drill and hook it to your compound feed. It makes for easy smooth long compound cuts.

[@kindabluejazz]

I think he likes to 'feel' the cuts. He's been doing this a very long time, and can do some very nice and smooth manual movements.

[@NSResponder]

That's what I'd call making sheet metal the hard way!

[@randyhughes5160]

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

[@gregdawson1909]

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

[@chrisv4640]

I wonder if they put the blade on backwards

[@ellieprice363]

No. You’d have to flip it inside out which would be almost impossible with that size blade.

[@evil16v1]

That chip is telling a story. I'd like to see a follow up from joe about how that welds out.

[@davidbennett288]

Hopefully they use a rather high preheat and wrap it up to slow cool. What material do you think it might be?

[@tristansimonin1376]

​@@davidbennett288For me it's definitely an alloy steel this surface finish is not mild steel finish

[@evil16v1]

@@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.

[@tristansimonin1376]

@@evil16v1 yes and with a carbide saw there is no problem to cut hard steel

[@jasonhull5712]

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.

[@CreamyCornCob]

Its unreal that blade isn't even deflecting all over the place. Love the look of a hefty, laser sharp cut of hardened steel !

[@CatNolara]

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).

[@GAS1950]

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.

[@1320pass]

This is the kind of stuff that finds me. The chaos ensues. 😅

[@tonyturner487]

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

[@LoganPEade]

Oh man no kidding that carbide tipped band saw blade is screechy 😖, I could hear it way over here at the California Oregon border! 😂👍

[@mdvener]

Still well done job. Patience is the key and persistence.

[@ValiRossi]

Fascinating. Chocked full of great information.

[@zorbakaput8537]

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

[@kindabluejazz]

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.

[@corndog6700]

Hey check this out. That blade was squealing pretty loudly. Personally, I'd slow that sucker down. Those blades are $100+, the carbide blade is much more expensive. It's obvious that the blade went away and work hardened in the groove. I'd be worried about welding that piece into whatever they're fixing, and creating some very hard spots against the weld.

[@bobkonigsberg6907]

I've worked with enough recycled steel to learn that unless it's certified to be a particular grade, there are both ridiculously soft spots and then, there are some hard spots that will ruin multiple brand new drill bits within seconds. I imagine the same is true for cutting blades.

[@RetArm]

That alternate/extra ending was a nice touch.

[@RayCardona-u9l]

Your work is the best. Have you ever seen the lathe work from Pakistan? After seeing your work, I don't know how they survive doing work on big rigs, axels, splines and so forth!

[@andreabennett]

Great video, Adam! Nice job.

[@paulcurtis2779]

I see the screw in your video. . Directly under your boring bar. . Clear as day. .

[@passenger6735]

I use those YG inserts and I don't have a problem. I had similar strings on a piece of unknownium the other week but increasing the feed solved the issue. I don't get as upset as you Adam when I trash an insert and I pay for mine.

[@SergioPena20]

His whole shop is sponsored, that’s why he always trashes the competition. He said himself that the feed rate was too low. But did he change it? No. He needed to make the other inserts look better.

[@kumoyuki]

@@SergioPena20 do you have evidence that his whole shop is sponsored? Or are you just guessing?

[@SergioPena20]

@@kumoyuki watch his videos. Whenever he gets equipment, he always makes a video about it and says “my friends at so and so sent me this…” Now if he can get his AC, his welder and other things like that given to him, what makes you think he can’t get inserts for free?

[@kumoyuki]

@@SergioPena20 In fairness though, I have known people from the American South that speak that way about literally everyone. It's arguably circumstantial, but I was wondering about something more concrete

[@poorboy6988]

@@kumoyuki Most everything he has including his CNC machines he has received for free. Everything @SergioPena20 said is correct. Sorry to say, but he is nothing more than an influencer these days.

[@larryrobinson7492]

I run alot of tubing that looks like that, its called 4140 HRHT on the sheets I've seen. I think that means Hot Rolled Heat Treated, I do know it's plenty hard when I run it, I usually have to run it around 375 Surface feet it seems, taking about .500 off the diameter per pass. I use a Iscar 643 8250 insert with good results but I use the 432 8250 alot as well on other stuff. This is a aircraft tail wheel fork spindle housing I machine lots of.

[@ronnydowdy7432]

😢 You could get a saw blade welder for the shop and save some money. Enjoyed the show and keep em coming.

[@michaelgillen3537]

First time I have seen ABOM stressed and understandably.

[@forrestaddy9644]

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.

[@davidbennett288]

hardness and PMI would answer a lot of questions for sure

[@dalee.mccombs8571]

I don't understand why you didn't use your hardness tester to verify the "hardness" question !

[@sobocinski123]

UF is a finishing chip breaker.. you need either UG for general or UR for roughing

[@stevehenke678]

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. 😎

[@premiersi]

This is the kind of Abom we come for. Thanks, Adam!

[@davidt8438]

You should use high magnification to look at the insert to see what effect that steel had on it compared to what you normally use. It would be interesting to see.