This seems like an ideal application for a vacuum dust extraction system. That carbide dust seems like something you'd want to get out of there as fast as possible.
Lost for words again Adam, wow! Thankfully most of the comments have said it already. Appreciate you taking the time to make the paper prop to illustrate the need for the shallow counterbore to prevent chipping. It's a privilege to look over your shoulder while you show how you make these parts.
Friend, your skills/knowledge help many of us. I appreciate the time that you take to make these videos. You’re machining carbide, and I’m struggling with 316. Cheers man.
2:05 Screw stretching is unavoidable so the first thread will always take the biggest load. BUT There is another strategy. IF you can slightly increase the pitch of the female thread (or decrease the pitch of the male) then the load is shifted to the deepest thread engaged thus relieving the top thread of load. You can't do this with that multi tooth cutter, it has to be a single tooth. You can determine the required pitch change by measuring the stretch of the tightened screw either by direct measurement or by calculating it from the tightening angle. EX: if 1/4-20 screw from snug to full tight is 1/4 turn=90degrees. Pitch .050/4= .0125 stretch over the length of engagement. IF the length of engagement is 1/2" then the pitch of the female would have to be increase by .0125 in 1/2" or .025 per inch. So you cut the female thread to 20.5 TPI That strategy is used in ultra severe applications to keep threads from domino unzipping from the top.
I work at a facility that does a lot of carbide tool and die work and I have never seen carbide milling. that is pretty neat, thank you for sharing. We mostly sinker, grind and wire everything.
This looks incredible. The thought that hss will cut steel and carbide will cut hss and pcd will cut carbide makes sense but takes a bit of getting used to
It always amazes me that some folks think carbide is actually hard. I guess it is compared to some things, but diamond is way harder than carbide. I have spent the last 30+ years designing drill bits that use PDC (polycrystalline diamond compact). A slab of PDC is stuck on a carbide puck. It is analogous to a sheet of glass on bubble gum. Diamond is unbelievably hard. As long as it is kept cool. Diamond softens quickly at temperature.
@@athrunzala5337 You are welcome. Just a bit more info. Diamond can be used to machine certain materials because of how hard it is. However, it can not be used on many. Anything with iron is off limits because as it gets hot, the iron wants the carbon. Diamond is just carbon. Arranged differently than other forms, but just carbon. The iron will suck up the carbon. Expensive way to carburize. Diamond can not be “sharpened” in the traditional sense. It really just plows through, or gouges out what us in its path. Tensile strength is not high. All the bits I design, used to drill oil wells, have the cutter set so that it scrapes rather than cuts as one would visualize a lathe tool or end mill cutting. As long as the force is trying to push the PDC layer into the carbide puck, things go well. If the direction of force moves closer to trying to slide it off, things can go badly in a hurry. Nature makes it’s own Polycrystalline diamond. They are called “carbonados”
Love your videos! I am curious: What is the lifetime of the tools? How many of those threads and holes can you cut on average before you have to switch to a fresh cutter?
Now that's impressive for the freely given experience and information and the awesome surface finish on the completed job Adam. I doubt I'll ever mill carbide, but it's interesting to see how it's done.
Another great video. All usefully info and no faff. I will probably not use any of these techniques on my 50 year old BP but it's nice to know what can be done nowadays. Thanks Adam
Gosh I really do learn SO MUCH from your videos. As a home-gamer, I am unlikely to *ever* need to mill carbide with PCD, but the underlying approach and attention-to-detail are an absolutely invaluable way to look at how I work, and how I can get better results, even with manual machines. My old B'port is never going to be as rigid as your Mori-Seki, but by understanding that and paying attention to details in a similar fashion, I really think I can up my game. Can I get better surface finish? can I make my own reamers? These are questions I would've shouted "NO!" to just a week ago, but now you've made me very hopeful.
This totally reminds me of machining pure sintered beryllium metal. That this is actual tungsten carbide being frankly milled like this 😲😲😲 thats's God level 😲😲😲 usually EDM or similar are go to's for doing carbide other than a diamond saw for crude hacking of it.
Just wanted to say thank you for sharing your knowledge and experiences, this is some very cool stuff even if it's totally outside of the machining I'm currently doing. Learned a lot of new things here!
WOW.... That is hard core.... Got more guts than I do.. Well done. This video now has me wanting to give this a shot, even if my test coupon is a failure, I still want to learn and see what happens.
7:00 thanks for answering a question I often have about tools ......... the price. And those beautiful tools DID come with a beautiful price tag too didn't they
Wow. Stuff I never get to see… thanks Adam! Keep it up! Your content is really polished, if you could put out more faster I’d eat it up all the same; even if it came at a slight loss of condensed info I’d be all over it
It really comes down to what grade of carbide is being cut. Over on hour in cut on a tool isn’t uncommon but I’ve also dealt with grades that tools last less than 15 minutes in
For the ball mill being a different size, can you not use cutter comp to compensate for the difference size ball mills or is changing the program just the less error prone way? Now lets see milling diamond with, idk lasers?
BEAUTIFUL part!! The "rainbow" reminds me of an optical diffraction grating. If it's not proprietary, what is the pitch or step-over distance on the floor of the cavity? Thanks for sharing.
The maximum wavelength that a grating can diffract is equal to twice the grating period. The groove density can vary from a few tens of grooves per millimeter, to a few thousands of grooves per millimeter, and still give a diffraction grating appearance.
@@Bubu567 So, for the spectrum of visible light (380-700 nm), the advancement for each pass would be approximately 0.35 micron (350 nanometers) in this case ? That's some mighty fine tool control. Thank you.
@@FCleff Double the spectrum. 1400nm, or 1.4 microns to start getting visible diffraction. 0.76 microns to see the whole rainbow from red to blue. So basically, about 1 micron steps would give a great diffraction appearance.
A stamped part with a shape about the size of the area cut has a very sharp edge when stamp cut . This insert and its matching punch squeeze a chamfer on the sharp corners of the part
@@adamthemachinist awesome. (and thank you) ... it's v relaxing to watch. I'm not sure if it's the nature of carbide or your machining ... but it really is beautiful.
Very interesting video. You don’t see a lot with this type of video with the diamond tools in carbide. Awesome looking part. Can I ask what it does or function it might perform? Thanks again
Is not carbide dust kind of like asbestos in that it can cause cancer if you inhale it? Also do the diamond coated tools wear away like a grinding wheel to expose new grit?
It’s generally terrible for you , I handle it with precaution. The grinding wheel shown is a single layer electroplated wheel and just gets replaced when it begins to wear
The high density settles out fast. Asbestos fractures as flexible needles so it floats like a ballooning a spider web. I have used thoriated tungsten for GTAW, grinding with a diamond wheel. Thorium is radioactive so I've looked for the dust with a Geiger counter. It settles within seconds.
10:52 its crazy to know that part was milled And can you tell what purpose the parts youre making have? We know theyre tools or dies but what do they do?
Make a what is known in medicine a work field compress. Piece of PE foil whit hole in the midle, seal around whit painters tape or plain duct tape if mist is used.
Wish there was a shop that did this stuff around me. Would love to learn to do this sort of work. 90 percent of shops in my my neck of the woods are production, where I first started learning, then there are probably about four percent of job shops like I work at now. Then the one percent of places that do truly precise work making machining an art, but they are never hiring. It's very annoying being a younger person without a degree that loves and is willing to learn but every place that wants to higher you insists you start at the bottom of the ladder doing menial work...
that,s where most people start, at the bottom. You have to prove yourself, lower your expectations your not a shop foreman yet, look at it this way nobody is going to put you on a million dollar machine before you can opperate a drill press
@@oldog2 I fully understand that and have been through it several times and that is the problem. I come in give 100% every day and have run machines worth far more than a million dollars, all at the production shop. My old boss at my first shop was teaching me some small things, a bit of g and m code, but didn't have the time to teach me fully. He even gave me a reference when I quite because I wasn't really learning anything and one of higher ups tried to "big dick me". Then when applying for my current job I made it very clear that I was there to learn and that I would even take a pay cut to go there and learn. Spent the first six months doing shipping then actually started to learn some real stuff. I appreciate what they have taught me, but I don't have time to waste six months to a year of my life at every place I go trying to further my knowledge when the teaching stops, just to prove myself.
@@cods1pe3r you gotta know when you are putting in your time and when you are just wasting your time. Some people/places will just use your willingness to squeeze cheap labor out of you without ever letting you get into the good stuff, some places actually care and will respect you and give you opportunities.
shoot I already like the video I cant like it again at the end. I really appreciate these kind of videoa about the dark arts, Idk how many other people would but I would total pay a couple buck on patron to help make them more worth your while. but maybe not being responsible to keep making them or keep a schedule keeps it enjoyable for you and that's more important.
So you’re saying I shouldn’t try this on my little diy cnc mill? 🤣 Cool stuff though. Definitely interesting. Been in a lot of shops through the years, never seen anyone milling carbide like that.
That was really cool! Have you done any monocrystalline diamond machining? The single point diamond machining I've seen leaves optical quality finishes, so beautiful.
Hello Adam, I am considering this approach for some tungsten carbide form punches. We have a sinker EDM however with the age of the machine, at the time carbide required an additional power supply and settings (which we do not have) so it is not optimal, not to mention the electrode would need to be machined from tungsten and the part requires .0005 tolerances. It is a shallow surface feature only .007 deep at max within a .800 diameter of sintered tungsten carbide. We are considering a solid PCD ball mill from 6C Tools which I think may be a viable option. At .002 stepover it would produce a 1um cusp height which may be a high polish enough off the machine. I noticed that you did not mention the tool maker you purchased these from and I am curious as to what sort of tool life/part consistency you were able to attain after a few goes with these shown in the video. I would greatly appreciate your insight. Thanks, Erik
Most of the tools in The video are Union tool brand . One shot is a 6c and I find them to be the best solution but sometimes the lead time isn’t workable so I use union.
@@adamthemachinist Hi Adam, thanks so much for your response. It's been a while since I last checked these youtube posts. I really appreciate it. We did a trial in 58-60Rc D2 with some harvey 6flt tools. Thought it came out nice after polishing but didn't get the re-order. We considered an air turbine spindle for them but they couldn't stomach the tooling cost. Don't blame them either. Anyway thanks for your videos and feedback! Keep up the great work!
No electron microscope here unfortunately. Check out Marvgro on Instagram , he has some pretty cool shots of milled carbide . With the proper tool, the corner edge quality can be quite stunning
I'm not familiar with working with carbide as a material. Is the "carbide" tungsten carbide? I'm not quite sure what the material being referred to as "carbide" is.
Hi Adam, i have done some carbide milling and grinding on my vmc before. Now i have to do the same parts as before but give them an additional hole for positioning. Is there maybe an option to directly contact you for 1-2 questions/tipps for the hole making process? I would love to avoid ruining too many cvd tools on these holes. Would be much appreciated! Thanks!
I feel like this channel is the opposite of titans of cnc. Zen atmosphere, small cuts, minimal coolant.
And don't use the word "perfect" for everything
Those guys are trying to build a cult/religion full of 'followers'. That 'evangelist' vibe is too much for me.
Both channels are great, titans offer free education. You should look into it 😂
Adam is an actual machinist. Period.
"Boom" 😂😂😂
Its so nice to see a real world part/application, instead of the tradeshow demos.
Also: Appreciate the high production value of the thumbnail! :D
This seems like an ideal application for a vacuum dust extraction system. That carbide dust seems like something you'd want to get out of there as fast as possible.
Hey Stefan Gotteswinter, you've got some serious competition over here!
Stefan already appreciated the work in the comments below..
Lost for words again Adam, wow! Thankfully most of the comments have said it already. Appreciate you taking the time to make the paper prop to illustrate the need for the shallow counterbore to prevent chipping. It's a privilege to look over your shoulder while you show how you make these parts.
Friend, your skills/knowledge help many of us. I appreciate the time that you take to make these videos. You’re machining carbide, and I’m struggling with 316. Cheers man.
carbide can be pretty hard, but 316 is really tough =P
@@user-by7hj4dj9s Bloody tough😢
Absolutely fascinating. As a hobby machinist, I really love seeing the intricate details required for tool and die making. Awesome stuff!
2:05 Screw stretching is unavoidable so the first thread will always take the biggest load. BUT There is another strategy. IF you can slightly increase the pitch of the female thread (or decrease the pitch of the male) then the load is shifted to the deepest thread engaged thus relieving the top thread of load. You can't do this with that multi tooth cutter, it has to be a single tooth.
You can determine the required pitch change by measuring the stretch of the tightened screw either by direct measurement or by calculating it from the tightening angle.
EX: if 1/4-20 screw from snug to full tight is 1/4 turn=90degrees. Pitch .050/4= .0125 stretch over the length of engagement. IF the length of engagement is 1/2" then the pitch of the female would have to be increase by .0125 in 1/2" or .025 per inch. So you cut the female thread to 20.5 TPI
That strategy is used in ultra severe applications to keep threads from domino unzipping from the top.
Jam packed full of gold with a laid back and soothing audiovisual presentation. Thanks for sharing. Beautiful finish and great work.
Die makers are on another level in my mind. I appreciate you sharing your expertise and videos. Thanks!
Beautiful work,
I work at a facility that does a lot of carbide tool and die work and I have never seen carbide milling. that is pretty neat, thank you for sharing. We mostly sinker, grind and wire everything.
This is awesome Adam! The drilling blew my mind. Thanks for sharing.
This looks incredible. The thought that hss will cut steel and carbide will cut hss and pcd will cut carbide makes sense but takes a bit of getting used to
This was far more fascinating then i expected it to be. Thanks for sharing this. I have a new appreciation for the precision of carbide parts.
It always amazes me that some folks think carbide is actually hard. I guess it is compared to some things, but diamond is way harder than carbide. I have spent the last 30+ years designing drill bits that use PDC (polycrystalline diamond compact). A slab of PDC is stuck on a carbide puck. It is analogous to a sheet of glass on bubble gum. Diamond is unbelievably hard. As long as it is kept cool. Diamond softens quickly at temperature.
More like glass on plywood
Does CBN soften at temperature?
Thank you for the information
@@lindboknifeandtool I don’t know. It was too prone to fail in brittle fracture for our use.
@@athrunzala5337 You are welcome. Just a bit more info.
Diamond can be used to machine certain materials because of how hard it is. However, it can not be used on many. Anything with iron is off limits because as it gets hot, the iron wants the carbon. Diamond is just carbon. Arranged differently than other forms, but just carbon. The iron will suck up the carbon. Expensive way to carburize.
Diamond can not be “sharpened” in the traditional sense. It really just plows through, or gouges out what us in its path. Tensile strength is not high. All the bits I design, used to drill oil wells, have the cutter set so that it scrapes rather than cuts as one would visualize a lathe tool or end mill cutting. As long as the force is trying to push the PDC layer into the carbide puck, things go well. If the direction of force moves closer to trying to slide it off, things can go badly in a hurry.
Nature makes it’s own Polycrystalline diamond. They are called “carbonados”
Love your videos!
I am curious: What is the lifetime of the tools? How many of those threads and holes can you cut on average before you have to switch to a fresh cutter?
Now that's impressive for the freely given experience and information and the awesome surface finish on the completed job Adam. I doubt I'll ever mill carbide, but it's interesting to see how it's done.
Another great video. All usefully info and no faff. I will probably not use any of these techniques on my 50 year old BP but it's nice to know what can be done nowadays.
Thanks Adam
Keep up the good work. You really know what you're doing. It's art much appreciated.
I am amazed by your talent. Tool and Die Machinists are who maintenance machinist look up to.
Gosh I really do learn SO MUCH from your videos.
As a home-gamer, I am unlikely to *ever* need to mill carbide with PCD, but the underlying approach and attention-to-detail are an absolutely invaluable way to look at how I work, and how I can get better results, even with manual machines.
My old B'port is never going to be as rigid as your Mori-Seki, but by understanding that and paying attention to details in a similar fashion, I really think I can up my game. Can I get better surface finish? can I make my own reamers? These are questions I would've shouted "NO!" to just a week ago, but now you've made me very hopeful.
Hooray for those of us with old BPs!
This is very interesting. Had no idea you could machine carbide with such ease. If I didn’t know any better I would have thought Robin grew some hair
This totally reminds me of machining pure sintered beryllium metal. That this is actual tungsten carbide being frankly milled like this 😲😲😲 thats's God level 😲😲😲 usually EDM or similar are go to's for doing carbide other than a diamond saw for crude hacking of it.
Beryllium, sounds dangerous...
Stunning precision and quality.
Just wanted to say thank you for sharing your knowledge and experiences, this is some very cool stuff even if it's totally outside of the machining I'm currently doing. Learned a lot of new things here!
Really nice and satisfying work! Thanks for posting!
My grandma of all people did this for a living until retirement at a company here in Tenn called Kennametal
Really neat thanks for sharing about this technique. I dont intend to do any carbide anytime soon but lovely to see it being done. Charles
Amazing, this is like a precision oasis that is not supposed to exist!
Thank you for sharing, great discussion, as a home hobbyist I found this interesting
WOW.... That is hard core.... Got more guts than I do.. Well done. This video now has me wanting to give this a shot, even if my test coupon is a failure, I still want to learn and see what happens.
This work is truly a artist and hark nocks at work. Great video thumbs up for sure!!
7:00 thanks for answering a question I often have about tools ......... the price. And those beautiful tools DID come with a beautiful price tag too didn't they
Wow. Stuff I never get to see… thanks Adam! Keep it up!
Your content is really polished, if you could put out more faster I’d eat it up all the same; even if it came at a slight loss of condensed info I’d be all over it
Great video, I think I've taken longer to thread mill some 0-80 stainless holes than you do in carbide
So good Adam I one my own stampin facility in California and I'm so impressed
I don't know why i watched that, but I can't complain. It was very satisfying
Adam, excellent content keep up the good work.
Absolutely fascinating - thank you.
Such tools is expencive, but how is the runtime on them before they need changing?
It really comes down to what grade of carbide is being cut. Over on hour in cut on a tool isn’t uncommon but I’ve also dealt with grades that tools last less than 15 minutes in
👍all new to me as a machinist. Thanks for sharing!
I'll do this on my home CNC machine... Yeah right. Lol beautiful work!!! Hats off to you sir.
For the ball mill being a different size, can you not use cutter comp to compensate for the difference size ball mills or is changing the program just the less error prone way?
Now lets see milling diamond with, idk lasers?
Who made the threadmill? I didn’t think 6C threadmills were more than single point.
The pinnacle of machining hard things. Next, machining Diamond with Adamantium-Carbide
BEAUTIFUL part!! The "rainbow" reminds me of an optical diffraction grating. If it's not proprietary, what is the pitch or step-over distance on the floor of the cavity? Thanks for sharing.
The maximum wavelength that a grating can diffract is equal to twice the grating period. The groove density can vary from a few tens of grooves per millimeter, to a few thousands of grooves per millimeter, and still give a diffraction grating appearance.
@@Bubu567 So, for the spectrum of visible light (380-700 nm), the advancement for each pass would be approximately 0.35 micron (350 nanometers) in this case ? That's some mighty fine tool control. Thank you.
@@FCleff Double the spectrum. 1400nm, or 1.4 microns to start getting visible diffraction. 0.76 microns to see the whole rainbow from red to blue. So basically, about 1 micron steps would give a great diffraction appearance.
@@Bubu567 Thank you.
Your channel is amazing dude. And I really like your calm explanations.
If I could add a request..? Would've loved to learn what that part did..?
A stamped part with a shape about the size of the area cut has a very sharp edge when stamp cut . This insert and its matching punch squeeze a chamfer on the sharp corners of the part
@@adamthemachinist awesome. (and thank you) ... it's v relaxing to watch.
I'm not sure if it's the nature of carbide or your machining ... but it really is beautiful.
Very interesting video. You don’t see a lot with this type of video with the diamond tools in carbide. Awesome looking part. Can I ask what it does or function it might perform? Thanks again
It’s an insert in a stamping die the forms a small radius on the underside of the part
thanks for the video, fascinating
Is not carbide dust kind of like asbestos in that it can cause cancer if you inhale it?
Also do the diamond coated tools wear away like a grinding wheel to expose new grit?
It’s generally terrible for you , I handle it with precaution. The grinding wheel shown is a single layer electroplated wheel and just gets replaced when it begins to wear
It's probably more the cobalt binder in the carbide that would cause a health effect. It messes with your lungs, liver etc.
The high density settles out fast. Asbestos fractures as flexible needles so it floats like a ballooning a spider web.
I have used thoriated tungsten for GTAW, grinding with a diamond wheel. Thorium is radioactive so I've looked for the dust with a Geiger counter. It settles within seconds.
10:52 its crazy to know that part was milled
And can you tell what purpose the parts youre making have? We know theyre tools or dies but what do they do?
This is called a burr kill , it rounds the corners on the bottom sharp edges of a stamped part
Perfect audio! Love the video!
Make a what is known in medicine a work field compress.
Piece of PE foil whit hole in the midle, seal around whit painters tape or plain duct tape if mist is used.
Another awesome video. Can you briefly touch on how you program the thread milling? Thanks!
Running those 6C Tools end mills?
Very cool . I’ve never machined carbide
What is the brand of carbide machining tools?
Ouch! I will never complain about the price of carbide endmills again.
The chips are tiny. Is this closer to grinding than milling?
Very informative work. Thanks.
Adam can you please tell us who the thread mill supplier is ❤
Awesome!
ATB, Robin
Wish there was a shop that did this stuff around me. Would love to learn to do this sort of work. 90 percent of shops in my my neck of the woods are production, where I first started learning, then there are probably about four percent of job shops like I work at now. Then the one percent of places that do truly precise work making machining an art, but they are never hiring. It's very annoying being a younger person without a degree that loves and is willing to learn but every place that wants to higher you insists you start at the bottom of the ladder doing menial work...
The apprentice model of making them do crappy work for a year doesn’t help the issue of getting young people in the trade unfortunately
that,s where most people start, at the bottom. You have to prove yourself, lower your expectations your not a shop foreman yet, look at it this way nobody is going to put you on a million dollar machine before you can opperate a drill press
@@oldog2 I fully understand that and have been through it several times and that is the problem. I come in give 100% every day and have run machines worth far more than a million dollars, all at the production shop. My old boss at my first shop was teaching me some small things, a bit of g and m code, but didn't have the time to teach me fully. He even gave me a reference when I quite because I wasn't really learning anything and one of higher ups tried to "big dick me". Then when applying for my current job I made it very clear that I was there to learn and that I would even take a pay cut to go there and learn. Spent the first six months doing shipping then actually started to learn some real stuff. I appreciate what they have taught me, but I don't have time to waste six months to a year of my life at every place I go trying to further my knowledge when the teaching stops, just to prove myself.
@@cods1pe3r you gotta know when you are putting in your time and when you are just wasting your time. Some people/places will just use your willingness to squeeze cheap labor out of you without ever letting you get into the good stuff, some places actually care and will respect you and give you opportunities.
Your content is great! What cnc milling machine do you use and what cam software?
Amazing work!!
shoot I already like the video I cant like it again at the end. I really appreciate these kind of videoa about the dark arts, Idk how many other people would but I would total pay a couple buck on patron to help make them more worth your while. but maybe not being responsible to keep making them or keep a schedule keeps it enjoyable for you and that's more important.
What kind of milling machine do you use.? Do the spindle and linear axes use hydrostatic air bearings ?
It’s a Mori nvd1500dcg , the ways and spindle are rolling elements
Wow, mind-blowing. 👍
I'm surprised to hear you using the word 'swarf' I've not seen an American use it before, It's the word we use here in the UK .
Do you have any spare carbide chunks to make a nice carbide capped *"walking stick"* ? Self defense is a problem for many lately. Just a thought...
tips on drilling out taps made of HSS, Cobalt, Carbide?
how small is your finishing stepover to be able to get that kind of finish with a ball nose?
So you’re saying I shouldn’t try this on my little diy cnc mill? 🤣
Cool stuff though. Definitely interesting. Been in a lot of shops through the years, never seen anyone milling carbide like that.
That was really cool! Have you done any monocrystalline diamond machining? The single point diamond machining I've seen leaves optical quality finishes, so beautiful.
Just polycrystalline unfortunately. I’m mesmerized by those single point mcd finishes
What brand thread mill did you use? I need a one and done solution in my life!
Have you looked into the core drill hole at the grate pyramids site?
Wow ... blown away
Thanks so much for sharing!
Does the rainbow basically mean that it’s an atomically flat layer?
Great video, thanks!
Super interesting, thanks!
What tools are you running here? This is really neat!
Very interesting. Thanks.
can you tell me where you got the bits?
Would love to know what you charge for a part like that, in terms of order of magnitude. 500? 5k? 50k?
Love watching. 😊
Where do you buy that thread mill?
what did this 'die'? make
Hello Adam,
I am considering this approach for some tungsten carbide form punches. We have a sinker EDM however with the age of the machine, at the time carbide required an additional power supply and settings (which we do not have) so it is not optimal, not to mention the electrode would need to be machined from tungsten and the part requires .0005 tolerances. It is a shallow surface feature only .007 deep at max within a .800 diameter of sintered tungsten carbide. We are considering a solid PCD ball mill from 6C Tools which I think may be a viable option. At .002 stepover it would produce a 1um cusp height which may be a high polish enough off the machine. I noticed that you did not mention the tool maker you purchased these from and I am curious as to what sort of tool life/part consistency you were able to attain after a few goes with these shown in the video. I would greatly appreciate your insight.
Thanks,
Erik
Most of the tools in The video are Union tool brand . One shot is a 6c and I find them to be the best solution but sometimes the lead time isn’t workable so I use union.
Tool life really can vary quiet a bit depending on the composition of the Cabride
@@adamthemachinist Hi Adam, thanks so much for your response. It's been a while since I last checked these youtube posts. I really appreciate it. We did a trial in 58-60Rc D2 with some harvey 6flt tools. Thought it came out nice after polishing but didn't get the re-order. We considered an air turbine spindle for them but they couldn't stomach the tooling cost. Don't blame them either. Anyway thanks for your videos and feedback! Keep up the great work!
vrais beau travail !!
Very interesting. Do you have a preference of starting with preform blanks, or EDM blocks?
I don’t see preforms often , usually I’m working with other shops on this and they all lean towards blocks for lead time .
Cool! What's it do?
Amazing!
Would love to see what the surface of carbide machined like that looks like under an electron microscope.
No electron microscope here unfortunately. Check out Marvgro on Instagram , he has some pretty cool shots of milled carbide . With the proper tool, the corner edge quality can be quite stunning
What are these parts for?
I'm not familiar with working with carbide as a material. Is the "carbide" tungsten carbide? I'm not quite sure what the material being referred to as "carbide" is.
Yes , tungsten carbide
What is this for Adam ???
lovely
Hi Adam, i have done some carbide milling and grinding on my vmc before. Now i have to do the same parts as before but give them an additional hole for positioning. Is there maybe an option to directly contact you for 1-2 questions/tipps for the hole making process? I would love to avoid ruining too many cvd tools on these holes. Would be much appreciated! Thanks!
Sure drop me a line on Instagram, not sure I’ll be able to tell you anything revolutionary about the process though
Im assuming its Tungsten carbide? Theres a collection of hard, abrasive carbides.
Yep