584,857 active members*
4,133 visitors online*
Register for free
Login
IndustryArena Forum > MetalWorking > MetalWork Discussion > tips for 304 st st plate
Results 1 to 5 of 5
  1. #1
    Join Date
    Feb 2018
    Posts
    26

    tips for 304 st st plate

    I'm taking 3mm off all faces of some flame cut 304 stainless steel plate - tough, 300mm sq, 50mm thick - but am struggling to get above 80m/min (260 ft) on my cutting speed. I'm using these tips at the moment - https://www.cromwell.co.uk/shop/cutt.../p/MTS1226266X - on an 80mm face mill, 2mm cut.


    Anyone suggestions? Different tips? Different strategy completely?


    I'm using CAM so could generate some small cut hsm style paths if that might help.


    Cheers

  2. #2
    Join Date
    Sep 2008
    Posts
    140

    Re: tips for 304 st st plate

    The description on the tips indicate "some stainless steels", check that out.
    The flame cutting doesn't help either.
    Larry

  3. #3
    Join Date
    Aug 2015
    Posts
    108

    Re: tips for 304 st st plate

    Normally 300 series requires a insert with a sharp\positive cutting edge. The problem is 300 series is notorious for its work-hardening abilities.

    The inserts you have will get you through the case hardened part of the stainless. Inserts with a sharper cutting edge will give you a better surface finish once you are through the flame cut.

  4. #4
    Join Date
    Jun 2015
    Posts
    4131

    Re: tips for 304 st st plate

    hello bspear i guess you allready know that the crust is hard ... not possible to go fast, vibrations, eats a lot of inserts, etc

    even a high quality carbide insert may fail sooner then expected

    if possible, try to avoid flame cut ...

    otherwise, use a holder with as many inserts as possible ( so to make the cutting proces more linear, more continuous ), and tool diameter as low as possible ( so to reduce required spindle torque, thus less vibrations, cutting force vector closer to spindle center, etc )

    i am not sure if hsm is ok, because crust is uneven , and this means that tools goes into material and goes out many times, and all these entries & exits into that crust may kill the cutting edge ... it may be better to keep the tool cutting, inside the material, as long as possible ?!


    just saying ; i don't know your setup / kindly
    Ladyhawke - My Delirium, https://www.youtube.com/watch?v=X_bFO1SNRZg

  5. #5
    Join Date
    Dec 2017
    Posts
    4
    If the scale is hard one thing you can try is reducing your feed and speed 20% and try conventional milling. This helps the insert when cutting a hard scale since it's scooping under the scale instead of slamming the cutting edge into every rotation.

    Quote Originally Posted by bspear View Post
    I'm taking 3mm off all faces of some flame cut 304 stainless steel plate - tough, 300mm sq, 50mm thick - but am struggling to get above 80m/min (260 ft) on my cutting speed. I'm using these tips at the moment - https://www.cromwell.co.uk/shop/cutt.../p/MTS1226266X - on an 80mm face mill, 2mm cut.


    Anyone suggestions? Different tips? Different strategy completely?


    I'm using CAM so could generate some small cut hsm style paths if that might help.


    Cheers

Similar Threads

  1. Any tips for designing a fixture plate / tooling plate?
    By thackman in forum Benchtop Machines
    Replies: 9
    Last Post: 12-19-2008, 06:26 PM
  2. anybody compare HT finecut tips to TD 1Torch tips for dross?
    By Knut in forum Waterjet General Topics
    Replies: 0
    Last Post: 09-29-2006, 07:17 PM
  3. Drafts: Tips for vendors and tips for RFQ writers...
    By InspirationTool in forum Employment Opportunity
    Replies: 3
    Last Post: 12-21-2005, 03:44 AM
  4. cutting Parts from a plate... need some tips
    By Bird_E in forum MetalWork Discussion
    Replies: 2
    Last Post: 04-10-2005, 04:40 AM

Tags for this Thread

Posting Permissions

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