Attacking Holes at Lightning Speeds to Save Time & Make $$$

Jessie pushes the limit on the High Speed Machining. He runs Kennametal's NEW KenReam Series on DN Solution's DVF5000 5-Axis CNC Machine. Jessies runs these these tools at 184 IPM and 546 SFM in 4140 Alloy Steel.
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00:00 Bugatti of Reamers
01:40 What is Reaming
02:23 CNC Drilling Operation
03:08 Testing the Limits Solidworks / Mastercam
04:25 Types of Reamers
05:41 Indicating in Runout Mitutoyo
06:37 Store.TITANSofCNC.com
07:17 Through Hole Reaming Operation
10:33 Blind Hole Reaming Operation
12:50 CNCExpert.com
13:07 Conclusion / Results
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#CNC #Machining #Machinist

[@auxchar]

I'm really glad you showed that chip buildup at 80% feed. I could see that being a huge problem with someone turning down the feed rate just because reasons. Absolutely right, have to run the tools for the feeds and speeds they're designed to run at.

[@Jessie_Smith]

Exactly. When you buy a high performance tool and run it slow it will perform worse than the general purpose tools a lot of the time. Because that’s not what it was designed to do! Thats exactly why I wanted to show the 80% feed and how that little change can cause a major effect

[@auxchar]

@@Jessie_Smith I bet some bonehead boss out there is gonna make their employees do exactly that for "reliability" and then blame them for the issue when the inevitable happens. That's always how it goes, isn't it?

[@Jessie_Smith]

@@auxchar sadly I’ve seen it happen a lot! I’m sure you have too

[@jackdowling101]

​@@Jessie_Smith yo off the topic of reaming, wondering if you have any advice on cutting a2 tool steel pre ht, high metal removal per part op1 roughing. And suggestions on cutter for max tool life and how long you'd expect it to cut for at what parameters?

[@jackdowling101]

30mm deep currently using 20mm solid carbide endmills

[@jeremymatthies726]

Jessie, you make a very good teacher. Always a joy to watch you explaining things in your videos.

[@Jessie_Smith]

Thank you! That means a lot to me to hear 🙏

[@jackprange9470]

These are my favorite types of videos! Extremely informational and simple to understand!

[@1gordon4u]

mind blowing, all my knowledge just went overboard....., again. You are another world!

[@travisjarrett2355]

Dig it man! Super informative and fun to watch.

[@cadenkorzan]

Man just pushing the limits on that 5 axis with that rectangular prism😅. In all seriousness, the reamer is pretty sick. Great video as always

[@christophervillalpando5865]

Great video! That tool just looks like a beast!

[@angrydragonslayer]

I feel like this is a good time to proclaim my love for TSC If you aren't using it, you're probably either sad or using TSA

[@Jessie_Smith]

It really makes a huge difference when you get to use TSC

[@john1182]

the last 4 ToCNC videos ive seen I've found them with in 10 min of been out :)

[@manueltorrez5729]

I tried the highspeed reamer from Gühring. Same cutting speed but 0.5mm/U. I had to start 50mm above the part to get on the perfect feed when the tool touches the Material. My part was in 1045 steel.

[@Brrraaack]

That´s the tool I thought about.... unbeatable performance with these.

[@Brrraaack]

@@manueltorrez5729 with HR 500 in steel 3mm/rev works fine. Feed of machine is limiting factor.

[@supercat380]

Titan didn't get his name by chance, he damn well deserves being a titan in every aspect!!!

[@markdavis304]

Great information Jessie! Well done👏

[@PeterRakowski]

can always tap around the nut or the tool of a er collet holder to dial in the runout

[@tdg911]

Always great information here. Much love and gratitude

[@Jessie_Smith]

Thanks for the support!

[@tdg911]

@@Jessie_Smith Bro you always have my support. Mad respect for you guys. I'm going to have to make another trip up there soon!

[@Jessie_Smith]

@@tdg911 man yeah come on!

[@NC-oy8hq]

If you are having trouble breaking the chip and due to fixturing issues just can’t get it done, I have stopped the spindle after the drill or reamer and spun it backwards to throw the birds nest off the tool before tool change and the next time it runs. Only works with spiral flutes obviously.

[@blahblah61334]

If you are running lights out or can't be at the machine constantly and have a bird nesting issue, one solution is to have a dwell and reverse the spindle for a couple seconds with coolant on and it should fling that bird nest off on it's own. Yes it adds time but if finish is a major concern it saves parts.

[@Jessie_Smith]

That is a good tip. Tricks like this are always a cool thing to learn

[@whispers391]

We do that and also will program with m code to raise the adjustable coolant higher in some cases to help push at a better angle

[@0Saints0Photography0]

Jessie, Great video on reaming! I've never reamed that fast in my life. I have a new content idea for you though. You did not address tapered reaming and I have not seen anything on tapered reaming especially cnc! Can you tackle this challenge??

[@gulch1969]

How close to the full diameter drill depth did you take the reamer?

[@Jessie_Smith]

I went to the same depth as the full diameter of the drill with the tip of the reamer on the blind holes. So like other reamers it has a chamfer on it so that would have to be taken into account on a real part

[@ThatOneFiesta]

just bought the #7 godrill and have been drilling 4140 for 1/4-20 tapped holes and god damn recommended feed at lowest sfm is like 32ipm i didn't even think i could drill 4140 like that, or spin tools that fast in 4140.

[@Jessie_Smith]

Lol sometimes I look at the parameters for drills in the NOVO app and say “ain’t no damn way” but they do it. Blows my mind every time

[@sebastianbeasti]

I love all of your Videos. I would like to see you guys make a swiss Cube, wich is a challenge to make.

[@1000crazypeople]

Company I work for expects this rate of production on our general purpose tools, worn out collets/holders, and old poorly maintained machines.

[@scottetling3887]

Well done Jessie. Thank you. #Kennametal

[@Jessie_Smith]

Thanks Scott!

[@jackdowling101]

​​@Jessie Smith yo off the topic of reaming, wondering if you have any advice on cutting a2 tool steel pre ht, high metal removal per part op1 roughing. And suggestions on cutter for max tool life and how long you'd expect it to cut for at what parameters?

[@Yamototamto]

Amazing...Love it

[@EnricoMarangonJunior]

Thanks for the Class !!

[@Jessie_Smith]

Thanks for your support!

[@elmedinmujkic8899]

You should give it more clearance because most maschines can't get the feeds up at such small distance to the workpiece.

[@zanechristenson3436]

Jessie and Barry videos are prime time/ varsity/ seemingly seasoned presenter level. This almost seems a stretch to be qualified in the same category as a reamer. Believe there are quite a number of non reaming tools out there now that can hold close to tenths tolerances these days? Seems like some weird and cool hole enlarging annular cutter lol even the chips resemble it

[@ObservationofLimits]

Seriously. I've never had a reamer pull off chips like that.

[@davegill8634]

Awesome !

[@diegomora1294]

Hello. I still have some doubts. If you first drill, the drill hardly will be perfectly centered. Shouldn’t the holes have an end mill pass for just correcting the hole center, and then apply the reamer ?

[@TITANSofCNC]

The drills that he is using are self centering but yes, if your dealing with incredibly tight locations… depending on drills being used… you may have to bore or interpellate.

[@gogelgebenec5270]

Wieder etwas gelernt!

[@swikocki]

Nice, never seen a reamer with flutes like that before, I assume its for through holes only

[@Jessie_Smith]

Yeah the one with no flutes is only for thru holes for sure

[@wilberreytor1122]

Saludos cuanto me gustaría adquirir una de esas fresas

[@fredrikmehlin]

We use urma reamers and that is some badass reamers. Do you use different chamfer angle then the entry chamfer on the reamer?

[@Jessie_Smith]

I have always used 90 deg chamfers and haven’t had any issues. Not saying that is the law, it’s just all I have done. If anyone has a case to be made for why a different angle is better then I would be glad to hear it.

[@fredrikmehlin]

We had issues with tool life with same chamfer angle as the reamer entry chamfer. The idea was that the same angle in both tools reamer and chamfer makes the start of the hole tough for the reamer as it has the same angle. Its like hitting a wall for the reamer as it has the same angle. But there is a more secure process with reamer after chamfer tool. Take care! You guys are the best!

[@chrisoconnell8432]

You should call these the Tesla Model S Plaid of reamers. The CNC Machine uses an electric motor after all :-D

[@TravisAnderson-ys2zx]

NASA runs those reamers they are great at putting a polish finish on parts

[@ridorodu129]

Direction of Rotation for both left and right handed is the same ?

[@Jessie_Smith]

Yes still an M3. Both are right handed cut. Just the helical flutes are opposite

[@MARCEL78945]

Did you tried Ceratizit?

[@apostolrobert5810]

Small holes are fast anyway, what's the biggest size ? And how fast is that? Using a 30mm hss reamer over a length of 80 mm takes forever to do , also sometimes the finish of the hole is equally as important, we had parts scraped because of one scratch mark on a reamed hole, even though it was mirror like

[@Jessie_Smith]

I believe this series reamers only go to 14mm dia. I used to turn extrusion blanks that were like that. The hole had to be smooth with no scratches or you run the risk of it getting caught on the extrusion arbor and bad things happen. They inspected every part visually and we made thousands. If they found even one with a scratch they would reject the entire order

[@chulangmo5799]

@@Jessie_Smith So, would you use a G85 or G86 cycle for that kind of surface finish?

[@koenvangeleuken2853]

but what about the surface finish? smooth ,no grooves?

[@Jessie_Smith]

I didn’t check it but they did look good and the pin felt good with no hangs when I checked it.

[@misfit3050]

Is there any reason you couldn't have just used the blind hole reamer for the through hole as well?

[@ryanclarke2161]

Rewatch the video and pay attention to the through coolant holes and how they work to get a better grasp on this

[@Jessie_Smith]

You technically could but it’s not ideal for several reasons. First is the coolant, the blind hole reamer coolant hole is on the bottom of the tool so it would just go straight thru the hole and not be beneficial at all. Second it is still not ideal to bring the chips out the top of the hole because they have to pass thru the tools flutes. Although that is what it is designed to do you always have the chance of them building up and eventually causing an issue or scratching your hole.

[@Imba-gt7qi]

Lesson learnt, thank you again, but what to do without inspindle coolant? Buy a CNC with inline coolant. 😭

[@Jessie_Smith]

Lol it does suck to run machines that don’t have it. Some shops don’t want to buy it but it is worth every penny and one of the most important features IMO

[@Imba-gt7qi]

@@Jessie_Smith The next will have inline cooling. But we need to build up budget. A two person shop, cant afford a doosan 5k. Unlucky 🙂

[@billroberts835]

More Jesse Nogo!!!

[@Jessie_Smith]

Lol Nogo gonna learn ‘em something today 😂

[@RoboDriller]

Put this in the Robodrill!

[@Yamototamto]

Funny thing that, Titans says in this video that You should run tools at speeds they are designed to run... Then on other video shows end mill that goes 4 times of designed speed, or lathe insert. 10 mm on side with insane feedrate. Even in Kennametal they prbably thing my god they are insane ppl at Titan's.

[@Jessie_Smith]

I said that mainly for the people that their first thought is to run the tools slow or slow them down to make it “better”. If you purchase a high performance tool and run it like a general purpose tool then a lot of times it will perform even worse and you will think “this is what they call high performance? It doesn’t even last as long as a regular tool”. When really it is because it wasn’t being ran hard enough. At my previous jobs we actually couldn’t use some of the inserts that were offered to us because we couldn’t run them hard enough to activate the chip breaker on them.

[@Yamototamto]

@@Jessie_Smith Exactly! I managed to get my hands on KOR5 end mill for steel and tried one Titans of CNC aproaches and it worked like marvel. Where I work, we dont have super rigid, high end milling machines but, for what we got, it went insanely well fast. Supper happy with results. So happy that there is someone like You guys who show that it can be done that way, and that in some tools running slow is bad for tooling and makes more problem than more aggresive aproach. Love it.

[@zajawamotocykle9256]

Hi Barry

[@barrysetzer]

Hey buddy!

[@PeckhamHall]

Creaming the reaming.. 😆 🤣 😂

[@D-TRIL]

😎

[@vipondiu]

..........Giggity

[@user-df1gy4qy3j]

Unsolved topic of surface roughness?

[@Jessie_Smith]

I didn’t have a way to accurately check it other than visual and feel. They looked good and the pin felt smooth when I checked it but if that’s all I said in the video then people would just yell at me so I decided to not even bring it up.

[@ObservationofLimits]

I'm more surprised a HSS reamer will run that fast in 4140 (must be annealed imo) without wearing itself down.

[@ObservationofLimits]

Dear god those are huge chips for a reamer

[@nihilisticman]

What was his run out? Three thenths? What does it mean in metric

[@MillTurn4Life]

Its .00762 MM ✌️

[@Jessie_Smith]

Sorry, I try to include metric every time I say something like that (at least in a graphic) but I forgot to have it added there

[@petermichaelgreen]

A "tenth" in american machinist speak, is a tenth of a thousandth of an inch. An Inch is 25.4mm, so a "thousanth" is 25.4um and a "tenth" is 2.54um.

[@stephenmarkovic878]

I’m Canadian and I don’t even machine in millimetres inches all the way

[@alanbjork9219]

did he say cylindricity

[@osmanioliva2453]

Ese tipo de escariador hace ya muchos años Beck y Mapal ya los tenían así como con placas intercambiables y ajustables

[@anthonyalbillar-montez5946]

One chip challenge.

[@shaunofthedead6389]

My wife is always disappointed when I high speed ream her 😂

[@fisherholmsfly]

Reaming is a countermeasure to make precise holes until someone discovers how to drill precise holes.

[@Mart3141]

There is a way to drill precision holes in one step by using single-lip drills with a drill bushing (or a pilot hole). Their disadvantage is their low feedrate. But if you need to drill a precision hole deeper than your reamers reach, they are first choice. I use them on a swiss type machine for titanium implants. The surface gets mirror like and the drills last for an eternity. But to achieve that you need a high coolant pressure and a special cutting oil with high pressure additives. Would be cool to see one of these in Titans of CNC.

[@dirtboy896]

Now get out the .0001” increment Deltronic pin gauge set and check every hole EDIT: Ok you mentioned that 😂

[@Jessie_Smith]

Lol I knew it was going to get brought up so that’s why I said it. If I had them I would have checked to see what it actually came out at but I didn’t so I used what I had.

[@dirtboy896]

@@Jessie_Smith the QC lab where I work has a big shelf of them with every size set .010” to .500” I’m sure they’re not cheap.

[@jorsanflo]

a

[@jan-ericlindstrom119]

Why don`t you bury the inch system so the rest of the World understand what you are talking about.🙂

[@meocats]

who the heck is going to need 250 side by side reamed holes?

[@ipadize]

Probably nobody, but if you do many reamed holes in your parts it will decrease the machining time drastically and you can produce more parts in a shorter time.

[@barrysetzer]

Plenty of people, I've done several parts with over 1,000 holes. Also, consider the people that need to ream 1 hole on 250 parts. A 1/4" reamed hole 1" deep with a HSS reamer will take about 30 seconds. With a carbide reamer, 15 seconds. With this reamer, less than 1 second.

[@Imba-gt7qi]

Chemical industry, Heat Exchanger. last i did (1980), ~2000 holes 20mm dia, 52mm trough, 850mm dia total. all reamed, Tubes were insert and solderd, so tolerances are narrow. All holes are driven by manual input of x and y, Z axis by program on paperstripe. one week per item. With this machine, i suggest 1 hour maximum. ok perhaps a bigger CNC.

[@davidchavez81]

Actually pretty common.

[@ubbgn]

Used moldino drills and and quality rimmers barely had any issues, this isnt new!