Search Results - Practical Machinist - Largest Manufacturing Technology Forum on the Web
Close
Login to Your Account

Search:

Type: Posts; User: Orange Vise

Page 1 of 54 1 2 3 4

Search: Search took 0.02 seconds.

  1. I think a palletized 5-axis for prototyping is a...

    I think a palletized 5-axis for prototyping is a great idea.

    We run lights out almost exclusively. It's a necessity for us to stay competitive. I'll usually make dozens of a given part before...
  2. Replies
    14
    Views
    761

    As long as you don't crash your diamond, you will...

    As long as you don't crash your diamond, you will probably never replace it.
  3. Replies
    14
    Views
    761

    Since single point diamonds are periodically...

    Since single point diamonds are periodically rotated, they're self-sharpening. So you replace them when they get too small, which often takes years.
  4. Replies
    24
    Views
    1,505

    Can't go wrong with a Kaeser.

    Can't go wrong with a Kaeser.
  5. Replies
    20
    Views
    1,846

    1/2" variable 4-flute, 1.25" flute length, .031...

    1/2" variable 4-flute, 1.25" flute length, .031 corner rad. Use flood coolant.

    1. Helical bore the start hole to 0.67" diameter, stepping down 0.025" per helix rotation down to Z-.55
    2. Plunge...
  6. Replies
    43
    Views
    2,620

    You're right that size should not be an issue....

    You're right that size should not be an issue. I'm not disagreeing with you. I too have never broken a brand new insert, even when seating it in a half-busted pocket.

    What I'm getting at is that...
  7. Replies
    43
    Views
    2,620

    Not all small inserts are created equal. I'm...

    Not all small inserts are created equal.

    I'm suggesting that he start by going to the big insert (1505) version of the same cutter because it's a direct swap and it shouldn't cost him a dime.
    ...
  8. Replies
    15
    Views
    1,196

    The Set-Tru chucks are very repeatable at a given...

    The Set-Tru chucks are very repeatable at a given diameter, but a more thorough test would be to dial it in at 12mm (which you've already done), and then clamp on something much larger, e.g. 65mm....
  9. Replies
    43
    Views
    2,620

    Call your Iscar rep and have them replace your...

    Call your Iscar rep and have them replace your 1003 sized facemill and inserts with the 1505 equivalents. The inserts and screws are much beefier.
  10. Replies
    43
    Views
    2,620

    Something's definitely amiss. We use Iscar...

    Something's definitely amiss.

    We use Iscar HM390s extensively in cast iron and steel and haven't had any issues in over 6 years and probably over 1000 inserts. Mostly the 1505 size inserts but...
  11. It's most likely the coolant pressure. When...

    It's most likely the coolant pressure.

    When buying a new machine, anticipated deep hole drilling under 1/4" is generally what gets folks to upgrade from 300psi to 1000.

    You're right at 1/4",...
  12. Perhaps this would be a safer alternative moving...

    Perhaps this would be a safer alternative moving forward:


    https://www.youtube.com/watch?v=7OD042aSNEo
  13. Replies
    5
    Views
    639

    Common problem caused by user error. A tool is...

    Common problem caused by user error. A tool is only partially inserted into the collet and torqued down. This puts excessive tension on the bottom of the collet and it cracks.

    Usually the...
  14. Replies
    8
    Views
    963

    A Royal Quick-Grip or Hardinge Flex-C collet...

    A Royal Quick-Grip or Hardinge Flex-C collet chuck with wire-EDM'd collets should do the trick. You'll need one of these larger collet chucks for the 1x2.

    As for spindle liners, Trusty Cook makes...
  15. Replies
    43
    Views
    2,642

    Freudian slip! Was he shifty-eyed?

    Freudian slip!

    Was he shifty-eyed?
  16. Edit: Just noticed this is an old thread. Would...

    Edit: Just noticed this is an old thread. Would be curious to know how the project went.



    31.5 million seconds in a year, divided by 2 million parts, equals 15.768 seconds per part. Not sure...
  17. IME, replaceable tip drills start a little bit...

    IME, replaceable tip drills start a little bit straighter and require a little less spindle HP. They are excellent above 6xD. But when they fail, they fail badly. The only machine window I've ever...
  18. Replies
    21
    Views
    1,526

    At 1.5" OD / .375" wall thickness, you're looking...

    At 1.5" OD / .375" wall thickness, you're looking at DOM tubing, which is low carbon steel, e.g. 1020, not thru-hardenable.

    Are swaybars subject to stresses that high? Can high stress areas be...
  19. At 15" OD, you're going to be loading these by...

    At 15" OD, you're going to be loading these by hand anyway, so not much in the way of lathe automation. I'm not sure I see the benefits of moving away from a decent sized 5-axis mill (e.g. UMC-750 as...
  20. Replies
    7
    Views
    755

    We considered doing the retrofit to our NLX but...

    We considered doing the retrofit to our NLX but decided to save the money toward a future machine. Our current chip conveyor would've gotten in the way, and it wouldn't have been worth the expense to...
  21. Replies
    18
    Views
    1,801

    Your colleague can either fork over the $4K or...

    Your colleague can either fork over the $4K or pay an attorney to write an angry letter. There are laws against "cybersquatting".

    Back in the late 90s, a father and son in Silicon Valley bought...
  22. Replies
    12
    Views
    1,949

    Desktop Metal uses a 3-step process based on...

    Desktop Metal uses a 3-step process based on "metal injection molding": print, debind, sinter.

    This system appears to use a different type of binder to go straight from print to sinter,...
  23. Replies
    20
    Views
    1,494

    Hard to go wrong with case hardened 8620,...

    Hard to go wrong with case hardened 8620, centerless ground.

    Some, not all, Thomson shafts are hard chromed. Probably overkill for this application.
  24. Replies
    14
    Views
    1,037

    For small quantities, nothing wrong with a plain...

    For small quantities, nothing wrong with a plain old HSS jobber or parabolic.
  25. Replies
    45
    Views
    4,761

    The latter. To determine your shop's true...

    The latter.

    To determine your shop's true cost structure, you must decouple all expenses (machine, labor, overhead) as well as separate machine expenses into real costs and opportunity costs.
    ...
Results 1 to 25 of 1328
Page 1 of 54 1 2 3 4