Testing the Lakeshore Carbide TAS Rougher: Tormach 770 WW150

Testing the Lakeshore Carbide TAS aluminum corncob style roughing end mill! Called The Aluminum Shredder, this tool boasts high aluminum removal rates, steel ramping (up to 45 degrees!) and smaller chips. Let's see how it compares to our Shear-Hog and experience with other roughing end mills!

[okflyer]

Great cutter there from LSC!! I'm also a BIG time ShearHog fan (1.00" single flute MIT), running it on my PCNC1100 (5100 rpm and 24 ipm works well all the time). The drawback on the ShearHog is simply the 1.00" diameter, making it unable to get into any kind of tight spot (yes I know theres a .750 one also). This Lakeshore TAS cutter might be the best answer for jobs that require a relative large amount of aggregate material removal, esp when working in tight spots (a job I have at the moment!). Crazy ramp angle. I run Lakeshore's variable 3-flute ZrN aluminum cutters with a 5 degree ramp and they probably could do more than that. Lakeshore produces some really great tooling. I'm a regular customer. Thanks for the highlight here!!

[jkotka]

John, i really like the lightning setup you have on our intros, very professional looking end result. thumbs up!

[derinteriors]

Looks like a winner for the small PCNC market... Looking forward to finding our if it survives the HAAS. Thanks for sharing.

[cavemansmancave]

Those roughens are awesome. They throw chips like nobody's business.
Thanks,
John

[LibertyEver]

Kudos to Carl! That looks like another great Lakeshore Carbide tool.

[MorganOliff]

Hey John we use roughers a fair amount in alum and stainless. Give them some stepover, they like to eat, re-ingesting chips is never good, BUT if any cutter tolerates it it's these guys. excellent for slotting.

Hey and you forgot to taper your helical ramp! :)

that's like my favorite feature.

Have fun!

Nice video, keep them coming more speeds and feeds videos.

[spencerleith]

Would be awesome to see the same test on the HAAS 💪🏻

[jasonlacoss]

What about all that tool chatter? is that normal for a corn cob style cutter? I'm still learning, but that whine would have worried me. Great video regardless (as always).

[GeofDumas]

Those are some great looking chips! Makes me wish I could work with more aluminum

[TheWidgetWorks]

Little bit of chatter on the final, not to bad though. What was the load meter saying? Those vector drives that tormach is using aren't the greatest for absolute spindle speed control, they don't run any feed back comp for spindle loading. As a result they will pull down even at 50% of full load but as long as it's not running over 100% for long you should be okay. Another thing to consider is that when your spindle pulls down like that your feed per tooth goes up! my ear was thinking that your spindle pulled down about 15% that means you chip load went up %15. Not a problem, obviously it worked fine, but some food for thought. Maybe try and put a tac on the spindle and see how much of a drop in rpm's you're actually getting?

[jsn]

Maybe I missed it, but did you say if the tool was carbide or cobalt... because it looks like cobalt. Also, what was the gizmo you used to measure runout?

[LumaLabs]

Why does the surface footage strike me as really crazy low in aluminum?
I'm running a Swift Carb Ramp Mill in the Robodrill... at like 1800SFM.

[fredlllll]

can somebody explain why the tool isnt going zig zag back and forth on the corners, but instead goes one way, stops, goes back in air, stops, and then goes over it again. its not a finishing cut, and cncs dont have backlash, so why waste the time by not going back and cutting there too? or just flying to the next corner if changing direction is bad??

[RookieLock]

Wow, that was quite impressive ! thanks for sharing

[SlashTen]

I've been trying to use this tool in a PCNC1100 S3 and can't get above about 1.5 cubic inches per minute without having the tool pull out. I have talked to Tormach support multiple times, we have the updated collet, I have followed the greasing procedure, and I have the power drawbar adjusted so tightly it crashes the tool changer. I've tried these parameters and also lighter, faster cuts and the tool still pulls out while climb milling around the outside of parts where there isn't any chip recutting. Does anyone have any advice for getting higher metal removal rates from a Tormach PCNC1100 without pulling the tool out?

[rlockwood]

These videos are great, but I think they come off with a somewhat misleading result. You're frequently discussing changing the surface speed to get a better result, and it comes off as though something with that surface speed is causing the change. It's misleading, as the surface speed itself isn't the limiting factor, rather the available torque/horsepower as a result of the spindle speed change.

I say this, as i'm certain that tool would gladly perform at 3000+ SFM in aluminum, given the horsepower and torque to maintain chiploads at those speeds.. The video leaves with the impression that a ridiculously low SFM is ideal for that endmill, when in reality it's only ideal for that tool in THAT MACHINE. Hopefully that makes sense.

Still, Cool.

[Clinteastvveed]

Most productive SFM for aluminum is around 2500 SFM, more with side cutting

[brocksdaddy]

John have you watched Titans of CNC on youtube? The guy gets 800 inch per minute on a haas mill. its truly incredible

[nmnarz]

How did you get the black dots on your toolpath in simulation?