Threading Metric Titanium Rod
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- Опубликовано: 6 сен 2024
- Small job requiring some 12mm titanium rods to be threaded on both ends for an M12x1.25 pitch. I wanted to show more detail on how I set up and operate the Victor lathe when I'm machining metric threads. I use the technique where I disengage the half nuts after each pass.
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Hi Adam. I've been machining over 45 years and never threaded that way. I'm going to give it a try. This is one of the reasons I watch your videos because I can always learn something.. Thanks.
Watching this guy work is like watching an opera show. It's fascinating and jaw dropping. The experience, the skills, unbelieveable.
Love the trick for releasing the half nut. i have a imperial lathe but i only cut metric threads 90% of the time. Going to be a great help. Thanks Abomb
yeah man. never seen that one before. still not sure how the F it works. but I'm gonna give it a twirl!
I love that 6-jaw Chuck, Hoss.
I think the reason this method works with metric on a converted lathe, is that the carriage is not moved after disengagement of the half nut. So when you catch the dial mark going back, you really are in the same lead screw thread. Just like it would be if you just stopped the lathe and backed up. Neat idea....Dave
Hi Dave. any progress on the planer.
As ever I am always impressed by the level of skill that Adam displays, I must admit to having a slight smile on my face when he says "that's good enough", you know damn well it's spot on.
The thing that always amuses my about the US insisting on feet and inches. After all this is the Imperial system of measurement that Great Britain made the world work to. I would have thought that on the day the US declared independence they would have thrown out the British system.
In GB, where we have supposedly adopted the metric system I still go to the timber yard a buy a 12mm 8' X 4' plywood or I get 2.4m of 4"X2".
Metric wasn't invented until 1791, and wasn't widely adopted until about 1900. A bit late for the US independence of 1776. Imperial has its advantages - especially in the earlier days with lower technology and lower needs for super-precision, when it was much easier to take halves and halves and halves of things. 64ths are higher precision than whole millimeters.
Adam, be sure to get all those chips out of the tray. Years ago I was working at an aircraft landing gear plant and we had our first experience with titanium on a lathe. A lot of chips gathered in the tray and caught fire. By the time the fire was out, a portion of the ways were melted scrapping the lathe. Titanium, magnesium, zirconium as well as some other metals are flammable in fine chip form.
Recall reading science article, only inert gas (Helium, Argon etc) will extinguish a titanium fire. Will continue to burn under water and sand.
You are correct there. Water is the worst, the fire is so hot that it breaks (dissociates) the water molecules into hydrogen and oxygen and creates more fuel. Potassium is like that, drop a piece into water, and instant fire.
Thanks for the order of operations. I like to see everyone else’s methods. Helps me refine mine.
Excellent set-up for small batch production.
Thanks for sharing and stay safe all.
Wow, that intro photo! Titanium looks so much neater than even 316 when threaded.
I remember your story of the prop-shaft told a couple years back, and that changed the way I plan things out.
Now-days I would have done one end complete, and then parted off and then done the other end of each piece. That way I'd have 3 chances in 6 of saving any big error on the first thread of each piece. This has saved me on at least one occasion.
Well done. I learned something about metric threading today. "Time is never lost or wasted as long as you're learning something."
Nice to be able to do work like this from home when lot's of people locked down in their houses. I know some youtubers put hours of work in for the few minutes that get loaded up but that's makes for good regular viewing figures. Thanks
It's truly a joy and a privilege to watch an expert at work! Thank you for another great video!
Best,
Jon
My customers give me excellent reviews and I'm going to pass them along to you because you are one heck of a great machinist...bravo to you bud...you rock, BIGTIME
Great use of camera angles. Makes for a very professional looking video!
Excellent demonstration! I have a lathe that has a metric leadscrew so I can cut metric threads with no fuss at all. However, when I cut inch threads I have to maintain the halfnut engagement point just like you do for metric. I think I first saw this method demonstrated by Tom Lipton and I've been happily using it since.
@24:10 0n. Perfect demonstration of how you have to keep that tool moving. Titanium waits for no one. Awesome watching you rip some threads. Stay Safe and Healthy, Mr.and Mrs. Booth.
That trick about disengaging and then backing out to re-engage is brilliant! I've done some metric threading and just stopped the machine and banged into a shoulder a time or two. I will definitely be adopting this!
You set a very high bar, Adam. Your machining skills are second to none and your attention to detail with your camera shots are awesome. You are so generous giving your skills to us amateur hobbyists that watch you, if my engineering teacher at high school had been like you I would have definitely taken this up as a career.
Thank you Abomb.
There is something so soothing and satisfying one gets from single point threading.
We did a lot if titanium turning when i worked at the Univ of Hawaii and the chips all balled up in. We saved the chips and crunched them into a real ball and used them as pot scrubbers. Lasted for years.
Perfect tutorial. Excellent "just the way it is done" presentation. 10/10 Thank you Sir.
Typically I watch wood working videos, but this is very satisfying to watch as well. I'm glad that YT recommended this channel. *Well done btw.*
One little time-saving trick I learned: As you started the next cutting pass I could tell that you weren't looking at the thread dial indicator. I watched a few more times and realized that you set the dial indicator during the reversing trip back to the starting point, so it was all ready to go on the next pass. That is a nice rhythm you have!
Great technique for threading on your Victor Adam.... you’ve perfected it...
Thanks for the threading lesson. Looks like a very effecient way to do it...dial doesn't drift very far after you disingage, so don't ever have to wait long coming back the other way. Oh, and who says machinest can't dance...nice work. Even in boots.
You make it sound simple and fun, the challenge of it, not work. In awe at you a Master of your craft. Keep smilin'!
Big thanks to AVE for sending me over here I don’t do machining at all I’m an equipment operator converted to truck driver but I find it interesting thanks for explaining it where a complete know nothing in machining person like me can understand it
Best competent/advanced user threading video ever!
I've been using this same method for over 25 years at least. Best way to cut metric threads on an imperial lathe,in my opinion.
Good technique Adam. I've always left the half nuts engaged when doing metric threads. A few weeks ago I did a metric thread on a hydraulic cylinder ram with a wide shoulder and no relief groove. My lathe has a powerful foot brake so I could back the tool out and jam the brake on before hitting the shoulder. Needless to say I wasn't running the spindle very fast. If I had seen this video back then I could have gone much faster. I will try it the next time a metric thread comes into my shop. Thanks for the this, Ken
I've been using this method for a decade. I thought I invented it, and was the only one in the world doing this! Not only are you using it, but your using it faster and better.
Bummer man! 😆
Great video. Thanks.
Isn’t it awesome! 👍🏻
Thanks again I really appreciate your effort coming out with new video every day. You're making my quarantine that much better
Allí have to say is thank you very much for your videos in a time like this you keep use from going crazy at home
I used that threading method on a M60 x 1.25 a few weeks ago. Love it. Can't imagine leaving the half nut engaged now.
This lathe is running soooo smooth......incredible!
Beautiful job!!! A pleasure to watch :-)))!!!
Adam, this is one of my favorite videos you've done lately. Nice to see you showing your impressive machining skills and knowledge!
I didn't get how the machine "knew" how to hit the same starting point on the rod each time, but now I do! Cool video, great to see how you work the machine too. Great to watch someone experienced work with tools they know well.
Lots of nice angles filmed here, Adam, thank you for putting so much effort into your videos!
It's useful for us dreamers to see that machining can also be a heap of repetitive operations - still, I dream ;)
really enjoy watching you and how you are carefull with your tools
I'm just more impressed with that lathe chuck than anything,,,,
ha ha, mee too I think it is the first time I see a six jaw chock
Your skill, knowledge and experience is truly shown in this video Adam. It was a joy to watch a master at work. Real good job man!
Really enjoying your videos during my quarantine... I hope you'll do a follow up with those counterbores
Thanks for showing how to use the dial on the lathe.
These are my favorite videos from you, as someone just getting into the trade these simple informative videos are really enjoyable and I pick up some important lessons.
Nothing is better than moly D for tough , cutting treading tapping , drilling saving $$$ on tooling (ABSOLUTELY) .
Nice finish to the product , even better job teaching . Thanks for the lesson , stay healthy brother .
Awesome. Showing the hands was genius
Great to see some Abom machining with his patented teaching!
When I saw you using the file backwards, I thought, that's a new trick, then I realized the chuck was spinning backwards. Lol
Excellent filming, narrative and machining. Thanks
Thank you for this Adam, it was a very relaxing way to close out my day. Keep up the excellent work
I lost a bet one day at work he the older machinist was doing it like you and I was disengaging the half nut we all know who won that was about 40 years ago I remember watching your video when you got that chuck ended up getting one for my old sheldon lathe at home retired now seems like I have forgot a lot of things then my memory comes back when I run the lathe and its older than me
I see many comments on various forums where some state that you absolutely cannot disengage the halfnuts and retain the origin of starting point when cutting metric threads on an imperial screw with conversion change gears.....some of us know that is nonsense. I've been doing it the same method as Adam for donkey's years.
Adam finally talking some of my metric language. :D
Magnificient filming
I agree! The multiple angles really helped understanding
The threading dance with the lathe, always enjoyable to watch, especially to us who are lazy and would just buy a die to cut the threads
Good luck with cutting an M45x5.0 thread with a die!
Good luck sourcing a die, for that matter.
That's a badass chuck.
badass machinist too :)
Yes , it is a nice chuck , I've seen a few I was afraid to bring up to polishing speed
@@jafo766 Fear is the path of the Dark Side.
When Tom Lipton showed this half nut technique a couple of years ago, I didn't know whether to be happy about it or just mad because I'd been doing it the hard way for about 20yrs.
Adam, thanks for showing how the gearing works.
I know this video has been up a while, but I just learned this technique a couple days ago and running a 1951 South Bend 9A with no brake its pretty much a game changer for me. All you usually hear is never ever disengage the half nuts when metric threading on an imperial lathe. This makes shoulders and meteic threads a lot less scary for me LOL.
Thanks for all the angles Adam! It really helps to understand the whole procedure. Back in university, our lathes didn't have threading dials, so we had to keep the half nut engaged all the time. It was really nerve recking to turn the lathe off and back the cross slide fast enough not to crash into the part. Thanks for the great video, I really appreciate you taking us along!
God Bless Adam ! Thanks for all you do !
Like a well-choreographed dance routine!
A very intriguing video. I'm a mechanic and have use thread cutting dies and nuts as well as thread taps, I always thought that cutting threads on a lathe would be the same ways as the dies and nuts in a straight on position cutting both faces of the thread, but I've worked out that the angle cut is actually cutting only the one face of the thread and the x or is it Y axis always remains the same on 0 and you are moving the angles slide to cut the depth of the thread...... A very educational video on thread cutting. Thanks mate...
Use the angled cross slide to only cut one side of the thread. Reduces cutting load from a v shape to a / shape. Search for the this old Tony video on thread cutting absolutely worth your time.
@@frollard Yea but you end it with a cross slide and a V shape -but its just a small shallow pass.You can also cut it with full V contact but then you have to take more passes.In harder materials it can snap your blade (if its made of HSS for example).
@@zumbazumba1 I've watched Joe Pie's video on threading, thought about it a lot and have used straight in ever since. Seems to me that unless your compound is set to EXACTLY 30 degrees the insert is still cutting on both sides or most probably burnishing on the back side. The other big advantage is being able to turn away from the chuck, off the end of the work with no great precision needed about when to disengage the feed lever. It also allows you to run at higher rpm since you have a longer clearance area at the end of the work. Holds true for work between centers also. I've never turned threads in hard material but this works fine in 4140. I find it hard to believe you could break a HSS threading tool unless you had a huge stick-out.
For the threading operation I had thought the lathe does not have to be stopped after each cut as long as the same engage mark is used every time. In your case #1. It has been a while but on my SB 10K I have a metric gear set. Made 1st cut moved carage out, then to the right, reset depth, waited until mark came up, engaged and made 2nd cut.
Thank you so much for the different camera angles and showing you working those controls! It's quite a document, now. Also gives an idea what real work is like: it can be repetitive but you have to stay focused. Keep up the nice work!
I have titanium rods in both of my femurs. Good job
That's intense. Can I ask what happened?
You an ex motorcycle rider by any chance ?
I remember years ago when I was threading titanium custom bolts on an old flat belt logan using HSS. Lots of fun
Slick! I see why it works even with the half nut getting disengaged. The machine just isn't turning far enough to lose the correct leadscrew engagement. I made a spider for the left end of a spindle for gunsmithing on an Asian lathe but earned to leave the half nut engaged the whole time. The lathe was set up to cut and thread Imperial but the hardware on it was all metric. The chuck was smaller than yours though, so less inertia to keep things going and I was able to stop everything with the foot brake before running out of the relief cut. I was machining cold rolled garbage so not running 330 rpm either. It helped that it was a brand new lathe in perfect condition. It turned out nice, with a close fit on the threads. I polished and hot blued it and fitted it out with brass screws so it looked sharp. Thanks for sharing what many would consider a trade secret.
Yep, just keep track of the original position. If it rotates around you have to reverse vans engage in that same position. 👍🏻
You are a thread cutting son of a gun...a dance is what you do.I'll bet that lathe is warm when you finished those 3 rods.WTG Adam.
To keep coworkers away while doing "The threading dance" I posted a sign "Threading stay the hell away". HA!
Adam, this is an excellent tutorial on thread making. I always learn something from your videos. Thanks and stay safe.
Dang Adam, watching you run a lathe is like watching Horowitz play the piano. Just a pleasure to see a competent pro doing work. Thanks for all the vids.
Abom wasnt even phased going to metric ..... i'm in Australia and still struggle with it.
Truely the king of spin(chucks and tooling)and shoplife
Content is awesome and i like the way you make it seem so easy keep up the awesome channel
I grew up metric in Australia . I don't even know what a furlong (or thou) is.
Great to see metric being used.
@@simonbateman8803 can't help you with what a furlong is, but a thou is slang or short form for 0.001 of an inch. A tenth is when someone refers to 0.0001 of an inch, not to be confused with 0.01 :)
Excellent video and threading technique. I learned threading on antique lathe without any graduations on the crosslide or compound. That took awhile. After returning from 'Nam I worked for a company making titanium parts for the ultrasonic industry. Good work but did not pay enough to support my own household.
Always a pleasure to watch you work. 😁👍
excellent video! thanks for showing how you work the lathe.
When I machined titanium The first few cuts were intermittent. I found there was a lot of tool pressure. made it hard to work. I had a tracer att. and i set it up to back out at the end of the tread. That worked real well. looked like a ground thread. Sure enjoy your videos. reminds me of my working life means years ago.
Thank you for the top camera shot on that dial indicator. Really showed how much the cross slide shifts forward like you said. (not as if I didn't believe you before). Just surprised me just how much it did move off.
That brake on your lathe is just so cool. I'm easily impressed maybe, haha. I've been watching a good few of your turning videos being new to lathes. My first one is a little bit smaller than this one though.
Abom vs servo 1-0. Very impressive speed handling the lathe. Parts looked great. Gretings from Sweden
Nice to see a view of what your doing with the lathe controls for us newer guys.. Thanks for that! Stay safe Adam, take care!
You make that look to easy. Great video
Your production up bringing is showing through. Fast makes money.........
Nice trick for metric threading.......much friendlier on your machine than throwing it into reverse : )
That is a good way to check . I keep an old dial calipers in the tool box to check metric and odd threads. I ground the fingers on the calipers to a sharper edge to check fine threads. The angle you grind does not matter as you are only checking "Samenes" against a bolt or whatever you are copying.
Pretty cool technique .The only possible issue i see is the inrush current on that motor getting it hot not running long enough to cool it .Def. couldn't do that kind of duty cycle on a single phase machine . Great Video Adam
Or cut the thread in the reverse direction. No need for quick reflexes that way, no grabbing at you nuts.
I’m diggin that six jaw chuck
That thing is sexy. Almost seems like a 4 jaw had sex with a collet chuck.
@@jjsemperfi 😂
I have come back to your videos after a while and man, your camera work and angles has come a looong way..
This is some next level learning experience for me. This is exactly the reason why last time I was threading some left handed whitworth thread for a first time, I had this feeling that I have done it before.
Keep up the good work and stay safe with your family!
Like watching a machine. Dang you make this look easy.
Hay man I have been watching your channel for a while now Adam , you are a craftsman mate , your filming and explanations for what you are doing and why are second to nun , I am a machinist myself , I am not to proud to say but you have taught me a thing or 2 , By the way, Hi from Geraldton Western Australia !!
Long time sub. Im stuck inside the house up here at Long Island, New York. Please please keep the vids coming. Quarantine sucks.
Adam, Awesome video & content enjoyed the different camera angles, thanks for sharing your video, knowledge, & skills.!.!.!.
Got a summit lathe work (omg auto correct is fighting me) but it just have a lever to change to metric like changing speeds. It is so nice we have to swap around gears just flip it to mm from inch.
Glad you are back in the shop using tools.
I fear not the man who has practiced 10,000 threads once, but I fear the man who has practiced one thread 10,000 times.
Excellent tip with the threading dial/ half nuts. It'll save some white knuckles for sure
That and Joe’s trick to use an upside-down tool and cut right hand threads with the lathe in reverse and the carriage heading away from the chuck.
(Just don’t crash into your live center)
perfect, right to the machining. love it
Thank you so much for this video. I now have a much better understanding about how threading works. Your name is mentioned often in the comments at CEE's YT channel. I am very happy I came to have a look :) Best regards