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  1. Yeah, there is that. Hm. Seems a bit wild, but...

    Yeah, there is that. Hm. Seems a bit wild, but maybe I could go ripping through there with 3 cuts to depth.. .023 and hit some medium...

    I am very pleased with all the responses to this " Very...
  2. You know, re-circulating chips may be the bigger...

    You know, re-circulating chips may be the bigger part of the problem here.
    Thanks!
    Mark
  3. Ok, I'll add Harvey to the list. I am about to...

    Ok, I'll add Harvey to the list.
    I am about to chew my leg off trying to get through their catalog though...
    Thanks!
    Mark
  4. Yeah, but dang.. I killed that Maritool 5...

    Yeah, but dang..
    I killed that Maritool 5 flute necked yesterday, but I did it at 40" a minute. .001" chip load. Which may just have been a bit over the top for it. And it broke a corner off of...
  5. Well now, that is interesting. But, I do have...

    Well now, that is interesting.
    But, I do have about 40 gallons of coolant in the sump.
    Not sure if you are suggesting standing there...
    I can see on a one-off doing that.
    But I don't...
  6. Yeah, I got into Blaser 755B a couple years back...

    Yeah, I got into Blaser 755B a couple years back and it is good stuff.
    Nover stinks, I never change it anymore. I filter it through a 20" well-house filter, generally 5 micron. Hung that filter...
  7. I can if I toss another tool in the changer. ...

    I can if I toss another tool in the changer.
    I just checked the pile, and I have a 3/16" carbide ball-nose...
    Just rip through there to clear the slot..
    At .069" that is less than a...
  8. Yeah, there's that. Going through the slot twice...

    Yeah, there's that. Going through the slot twice now to get my .189" finish width. Across 36" at .069 depth.
    It becomes problematic at a point, but certainly the end mill would live longer if I...
  9. Ta Chen, purportedly California Domestic. ...

    Ta Chen, purportedly California Domestic.
    Chips seem good though. crispy.
    Thanks!
    Mark
  10. Well, just checked. Ta Chen, Metal...

    Well, just checked.
    Ta Chen, Metal Supermarkets says it is out of California, and he believes it is Domestic.
    And then he dove right in there and said that even if it were from the import...
  11. Wow, that is impressive. I am taking all these...

    Wow, that is impressive. I am taking all these tool recommendations down and will check them out.
    Thanks!
    Mark
  12. I just plow through there.. if I tried the HEM...

    I just plow through there.. if I tried the HEM I'd be in there with even a smaller end mill, wouldn't I?
    The saw is going to be the fastest option, but I am trying to tool my way out if I can.
    ...
  13. Hey, I haven't had any luck running one down. I...

    Hey, I haven't had any luck running one down. I love HSS for just being tough and sharp. I won't burn it up at 8K...
    Do you know where to get one?
    Thanks!
    Mark
  14. Well, that has occurred to me. The fastest...

    Well, that has occurred to me.
    The fastest way possible to make this slot is with slotting blade or key-seat.
    That adds a setup, but I could sure go like hell.
    That bears consideration. I...
  15. Slot is 36", all the way across the plate, at...

    Slot is 36", all the way across the plate, at .069" depth.
    I tried the Maritool 5 flute just for kicks at .001 IPT and it did well until it snapped off. That was my first departure from the 3 flute...
  16. Yeah, I was thinking that too, but haven't...

    Yeah, I was thinking that too, but haven't sourced a HSS 2 flute high helix end mill. As I stop at 8K RPM, surface speed is not at issue.
    Thanks!
    Mark
  17. Well, maybe if I do the slots in steps... at much...

    Well, maybe if I do the slots in steps... at much higher feed.
    This slot is 36" long..
    My feed charts go up to about .0018 IPT on the 3/16"..
    Still, if I went through there at 40", two...
  18. No ramp or plunge, just straight across the...

    No ramp or plunge, just straight across the plate.

    That is kinda what I would like to do is try some better mills, when you hit 3/16 you start running out of roughers... so I'll try these and the...
  19. Yeah, I have a couple of those, never liked them...

    Yeah, I have a couple of those, never liked them much just because they are a bit big, and I am afraid I might drop them out of the Fadal 4020 umbrella tool changer.
    But that may be the way I...
  20. That is what I have been looking for, I'll get a...

    That is what I have been looking for, I'll get a couple and try them.
    Thanks!
    Mark
  21. Yeah, using 755B and have 6 nozzles pretty much...

    Yeah, using 755B and have 6 nozzles pretty much point-blank squirting the mill..
  22. I use Blaser 755B, it's the best I have used so...

    I use Blaser 755B, it's the best I have used so far.
  23. Busting my butt trying to rough 3/16" slot in 6061-T651

    Hi Guys, i could use some wisdom.
    So, I am making these parts, a lot of 3/16" end-mill stuff in 6061.
    I have tried Aluma-power 3 flute polished end mills, and swift tool 45 Degeree helix end...
  24. Replies
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    Yep, and I tried 400 ipm, and went on to 600. ...

    Yep, and I tried 400 ipm, and went on to 600.
    It's fast enough to be realistic, but still safe with an open machine.
    Thanks for your contributions!
    But tell me, do you see much difference...
  25. Replies
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    675

    I'd sure like to hear how this worked out for...

    I'd sure like to hear how this worked out for you, it is a lot deeper digging than I have done.
    Thanks!
    Mark
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