What's new

Search results

  1. S

    Peripheral cooling through tool holder at high rpm

    Thanks for the superb answer; I really am grateful for the time you took to make photos. Unfortunately I'm in Italy but I live and work in Sicily (southern Italy), which is not as industrialized as the north, and tool companies have not a huge presence here and it is hard to have someone at...
  2. S

    Peripheral cooling through tool holder at high rpm

    Seeing this video was very helpful however I'm more prone to think that with a tool that tapers form 6mm shank to 2mm cutting diameter no coolant will reach the cutting zone at 15k rpm no matter what. All this solution seems to be aiming to a cutting zone for a tool with cutting diameter equal...
  3. S

    Peripheral cooling through tool holder at high rpm

    The material is C45 steel. Don't know the US name of the material but is a pretty soft steel.
  4. S

    Peripheral cooling through tool holder at high rpm

    For toolholder I tried Regofix ER collets, both with double contact (BIG+) and without, and Schunk Tendo E also with and without dual contact. I was considering to try Big Kaiser hydraulic holder on size (no reduction sleeve, according to the BIG guy no sleeve is the first choice) with side...
  5. S

    Peripheral cooling through tool holder at high rpm

    No, haven't tried. Usually endmills intended for steel have some coating on them. I might try your suggestion in January when I will start the next batch of parts. Right now I used Iscar (cheap), Garant (very cheap) and chinese stuff. I'm considering to try Fraisa (medium/high price), Mikron...
  6. S

    Peripheral cooling through tool holder at high rpm

    The grooves are mostly through slots, on the other side of the plate there are other wider grooves with a 90 degree offset. It is basically a net. The pressure of flood coolant is also very weak but personally I think that chip are not formed properly. I get a lot of burr with standard endmills...
  7. S

    Peripheral cooling through tool holder at high rpm

    Because the part has a lot of slots (2mm large and 3,3 mm deep). Right now the only option is to use small 2mm high feed endmills but it is too slow. A slitting saw can't be used. Powrgrip is cool and I use Regofix for my ER toolholders assembly. The price of the toolholder itself is not a...
  8. S

    Peripheral cooling through tool holder at high rpm

    I got one of those ready for quote. Price was a little high. I would prefer to use standard endmills because for my application I will need at least 2 endmill per part and I hope to run it at night so time shouldn't be a concern. I also fear that at high RPM coolant might not reach the cutting...
  9. S

    Peripheral cooling through tool holder at high rpm

    Yes. I thought that reduction sleeves also have collant channels and holes oriented but I'm not sure; maybe they are just straight.
  10. S

    Peripheral cooling through tool holder at high rpm

    Greetings, I have to do a slot milling operation where I would like to have a better chip evacuation. I was considering toolholders or reduction sleeves with peripheral cooling supply. I was afraid that at 15.000 rpm (the slot is 2mm so I need high RPM) coolant might not reach the tool cutting...
  11. S

    Tips on using a vise, stock pushed up when tightening

    Damn! Two pages of answers and haven't got an e-mail for notification; My bad for not activating them. Thanks everyone for the help and sorry if I didn't reply Thanks but I'm actually Siciliano, I guess we are famous in America after all those films. I hate the Nord Italy but yes they make nice...
  12. S

    Tool stuck in the spindle after tool change arm collision

    Thanks for the answers. I solved the problem with the technician and the spindle taper seems fine. For some reason I got a movement on the X axis and the spindle moved from the toolchange X position; I had to disassemble the arm and still it didn't fall off until I slightly moved the X axis.
  13. S

    Tool stuck in the spindle after tool change arm collision

    Hello, I was trying to uso a go pro to film a machining operation and I placed it in a indicator base with a 8 mm shaft. I attached it to a metal sheet cover that move with the Z axis. During tool change the ram collided with the lower part of the indicator base shaft. I don't know if I pressed...
  14. S

    Tips on using a vise, stock pushed up when tightening

    Greetings, I'm new to machining and I would like to have tips on how to solve a problem that I encountered recently. I bought some parallels for my cheap machinist vise and I noticed that when I tighten the vise the stock is never in contact with the parallels. I was aware of this problem so...
Back
Top