. .
Page 4 of 7 FirstFirst ... 23456 ... LastLast
  1. #31
    Quote Originally Posted by matt-b2 View Post
    With regards to just using cold air, I've never had much luck cutting aluminium dry. I use uncoated carbide tooling and regardless of what speed I'm cutting at, I always end up clogging my cutters without some sort of lubrication present.

    Matt.
    Well your doing it wrong then. I cut dry pretty much all the time using Carbide tooling with just touch of air and odd squirt of coolant.

    Your most likely cutting too Shallow. Carbide likes to be worked hard.
    Another Myth is that single and Twin flute cutters are needed for Ali. 3 flute work perfectly well and allow higher feed rates with more DOC.

    My Standard setup is 3 Flute serated edge roughing cutter followed with 0.35 finish pass with Twin flute. The Rougher allows quick stock removal with high DOC.

  2. #32
    Second dry cutting aluminium with carbide. I use 2 flute. I never use lubricant. You need to go fast and dont be shy :-)

    With mql probably provides a slightly better surface finish and longer tool life..

  3. Quote Originally Posted by JAZZCNC View Post
    Well your doing it wrong then.
    Hi Dean - I have no doubt in my mind that you're absolutely right. I'd love to run without any coolant, I've seen plenty of videos of other machines (yours included) happily munching through aluminium without any coolant present, so I know it must be possible, but I've not achieved it yet. Clearly I need to experiment more. So far, I've tended to play it safe by running plenty of coolant just because, for me at least, it leads to less disasters, even if it's a sub-optimal way of doing things.

    Matt.

  4. #34
    mekanik's Avatar
    Lives in Barrow in Furness, United Kingdom. Last Activity: 17 Hours Ago Has been a member for 9-10 years. Has a total post count of 786. Received thanks 96 times, giving thanks to others 176 times.
    Hi Matt
    Have a look @ this.
    https://www.youtube.com/watch?v=ifMn6pHXLMM
    Regards
    Mike

  5. #35
    Ooooh... I think he is definately close to the edge of what that tool will take.

    All good fun :-)

    interesting video, cheers!

  6. He certainly seems to be pushing that endmill pretty hard - Not sure my spindle/steppers would be up to that although I think I can push them a lot harder than I currently do.

    In the next couple of weeks, I'll find some time to stick a block of 6082-T6 on my machine and play with the cutting parameters - I've done that in the past to land on a set of figures that work okay with plenty of coolant. I think it is time to revisit the experiment with an aim to push my machine harder both with and without coolant.

    I'd quite like to experiment with different endmill geometries too (i.e. number of flutes), but I haven't got the cash to be forking out on loads of different endmills right now, so I'm probably stuck testing with 2-flute tools.

    Matt.

  7. #37
    Carbide 2 flute seem to work great for alu in my experience. With or without coolant..

  8. #38
    Olive oil work perfectly for threading, better than specialised oils. I am threading a lot of aluminum and brass. Emulsify it with water , mist it and prepare your salad.
    project 1 , 2, Dust Shoe ...

  9. #39
    Interesting. Couple of small possible problems. You have to clean up well immediately - oil will go off and smell, water will rust your machine. That is the attraction of a liquid with no water...

  10. #40
    Chaz's Avatar
    Lives in Ickenham, West London, United Kingdom. Last Activity: 2 Weeks Ago Has been a member for 9-10 years. Has a total post count of 1,600. Received thanks 110 times, giving thanks to others 69 times.
    Quote Originally Posted by matt-b2 View Post
    He certainly seems to be pushing that endmill pretty hard - Not sure my spindle/steppers would be up to that although I think I can push them a lot harder than I currently do.

    In the next couple of weeks, I'll find some time to stick a block of 6082-T6 on my machine and play with the cutting parameters - I've done that in the past to land on a set of figures that work okay with plenty of coolant. I think it is time to revisit the experiment with an aim to push my machine harder both with and without coolant.

    I'd quite like to experiment with different endmill geometries too (i.e. number of flutes), but I haven't got the cash to be forking out on loads of different endmills right now, so I'm probably stuck testing with 2-flute tools.

    Matt.
    I'd like to revive this slightly old thread.

    I have flood on my Triac, it works well but I had the residue / mess it leaves over time.

    Id love to cut dry if possible. Since I've upgraded to a 1.5 KW AC Servo Spindle, I may also take some test cuts with smaller (read, cheaper) endmills and see what I can do before I break them.

    How do Datron manage with Ethanol cutting without the health / risks?

Page 4 of 7 FirstFirst ... 23456 ... LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Dry Aluminium Cutting Problem
    By Tenson in forum Tool & Tooling Technology
    Replies: 22
    Last Post: 29-08-2016, 11:41 PM
  2. Aluminium cutting
    By Bush Flyer in forum Metalwork Discussion
    Replies: 55
    Last Post: 13-05-2016, 09:57 AM
  3. WANTED: Mist lubrication system
    By badgerman in forum Items Wanted
    Replies: 9
    Last Post: 21-08-2014, 12:28 AM
  4. RFQ: RFQ: Need some thin aluminium cutting
    By stewpid22 in forum Projects, Jobs & Requests
    Replies: 0
    Last Post: 21-09-2012, 01:11 PM
  5. WANTED: CNC Mill/Router for Cutting Aluminium
    By kylelnsn in forum Items Wanted
    Replies: 5
    Last Post: 09-08-2012, 09:54 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •