Parting can be easy.

  1. grim_d

    grim_d Unlikeable idiot.

    Messages:
    3,103
    Location:
    Scotland - Ayrshire
    I'm a big fan of the Chinese tools and inserts but theres absolutely no comparison with parting inserts, the Chinese ones are ok but this iscar one is a beast!

    Get some good Inserts and take your brave pills, parting can become a dream.

    1" stainless, grade unknown.

    1600rpm @ 0.12mm feed per revolution

     
    fizzy, Anguz, Gritineye and 8 others like this.
  2. Brad93

    Brad93 M J B Engineering

    Messages:
    10,397
    Location:
    Essex
    Told you the iscar parting tools are good. I bought mine on @Hood s recommendation
     
  3. grim_d

    grim_d Unlikeable idiot.

    Messages:
    3,103
    Location:
    Scotland - Ayrshire
    I bought a box with 4 inserts in it a few months ago, I won't be going back to Chinese parting inserts.

    They are in the korloy blade that exploded spectacularly.

    I dropped one under the lathe never to be found again...that was annoying :mad:
     
    ronan and slim_boy_fat like this.
  4. roofman

    roofman Purveyor of fine English buckets and mops

    Messages:
    7,834
    Location:
    North West
    Impressive:thumbup:..did you take brave to the next level and use the power feed?
     
    slim_boy_fat likes this.
  5. grim_d

    grim_d Unlikeable idiot.

    Messages:
    3,103
    Location:
    Scotland - Ayrshire
    Absolutely. It's the way to go once you you've gained the confidence.
     
    fizzy, Hopefuldave and roofman like this.
  6. Pete.

    Pete. Member

    Messages:
    9,817
    Location:
    Kent, UK
    You can even part under power with a HSS blade with a good grind and coolant. The coolant is all-important, it stops the kerf, and the tip/blade expanding in the cut and jamming.
     
    Wallace, Hopefuldave, grim_d and 2 others like this.
  7. grim_d

    grim_d Unlikeable idiot.

    Messages:
    3,103
    Location:
    Scotland - Ayrshire
    Yes parting with HSS without coolant is not something I'll ever be doing again.
     
  8. ukracer Forum Supporter

    Can you fit Iscar parting tips into Chinese tools.

    What is the make and model of the tool and tips you use?
     
    roofman likes this.
  9. grim_d

    grim_d Unlikeable idiot.

    Messages:
    3,103
    Location:
    Scotland - Ayrshire
    I guess it would depend on the style but a GTN insert as I use would fit a Chinese blade no problem.

    I haven't seen any other types from China.
     
    fizzy, Hopefuldave and ukracer like this.
  10. Brad93

    Brad93 M J B Engineering

    Messages:
    10,397
    Location:
    Essex
    No, they’re special inserts.

    Iscar Tangrip
     
    Hopefuldave and ukracer like this.
  11. Brad93

    Brad93 M J B Engineering

    Messages:
    10,397
    Location:
    Essex
    This isn’t a rant coming on here, but every week it’s the same questions, and same problems.

    • Inserts breaking
    • Poor insert life
    • Poor surface finish
    • Etc, etc, etc

    Whether it’s a top flight manufacturer like Sandvik, Iscar, Kennametal or a slightly cheaper eastern manufacturer like Korloy or Mitsubishi.
    They spend £££££ reviewing their carbide formulation, the insert geometry, the toolholder geometry, the steel their holders are made from, the shim material and geometry.

    do you think your no name Chinese manufacturer is doing that?

    that’s why the top brands can publish data, best feeds and speed, best insert for which material, best chip breaker style, different coatings, TiAlN, PVD etc etc.

    You want fantastic results from subpar tools on old lathes. Now, I’ve no doubt that someone like @pressbrake or @Hood or any of the other skilled machinists on here could knock out quality work with Chinese tooling. But they’re guys who have years and years of experience and feel behind them.
     
    barking mat and ronan like this.
  12. grim_d

    grim_d Unlikeable idiot.

    Messages:
    3,103
    Location:
    Scotland - Ayrshire
    Where'd that come from?

    It's about finding a middle ground, I'm not paying £50+ for some inserts when the cheaper ones do me fine, when they aren't up to par..I'll spend a bit more.

    Most here aren't running a business with machining centres, just messing about on old clapped out machines.
     
    fenman, fizzy, slim_boy_fat and 6 others like this.
  13. Maker

    Maker nEw mEmBeR

    Messages:
    7,882
    Location:
    Don't ask questions
    I've just bought one, Iscar SGIH 26-3, it better be good. ;)
     
  14. Brad93

    Brad93 M J B Engineering

    Messages:
    10,397
    Location:
    Essex
    Then carry on with your subpar tooling.

    You don’t have to spend £50 on inserts. One insert from Korloy can be bought for as little £5.

    Decent inserts are worth 5 cheap ones. Buy cheap, buy twice.
     
  15. ukracer Forum Supporter

    But we see weekly on you tube cheap Chinese inserts doing good work.

    I get what you are saying but most of us do not make money using these tools so need to budget accordingly.

    That said , again you do have a valid argument. If we hear real world views as in this thread it helps immensely.
     
    slim_boy_fat and daleyd like this.
  16. grim_d

    grim_d Unlikeable idiot.

    Messages:
    3,103
    Location:
    Scotland - Ayrshire
    5 X 10 = 50. :dontknow:

    I will carry on, thanks for your blessing.

    Like I say, middle ground. It's not like I don't use good stuff...but where it's a true economy to use cheaper stuff, then why not? I'm not in it for bragging rights.

    Are the branded inserts better.... absolutely, I'm not arguing.

    IMG_20200725_211626.jpg

    Just for funsies...same speed and feed....Chinese Insert. Biggest difference is that the branded one is less likely to explode if things aren't quite perfect.




    Exactly. And IMO the Chinese GTN inserts are guff.
     
    daleyd, ukracer and zx9 like this.
  17. ukracer Forum Supporter

    @doubleboost which ones do you use?
     
  18. doubleboost

    doubleboost Member

    Messages:
    3,130
    Location:
    Newcastle upon Tyne England
     
    slim_boy_fat and ukracer like this.
  19. ronan

    ronan Forum Supporter

    Messages:
    10,276
    dublin
    The travelling salesman used to sell a lot of iscar tools and inserts into where i worked and used to give me a deal. I get ages out of the iscar stuff, so i don't mind paying for a packet of inserts. You gets what ya pays for in this life.
     
    Brad93 likes this.
  20. Milkybars

    Milkybars Forum Supporter

    Messages:
    547
    Location:
    Essex
    Well while we are on the subject can anyone identify these inserts for me they are 4mm
    The modern ones seem to be single ended ?
     
    • IMG_20200725_214509.jpg
    • IMG_20200725_214555.jpg
    • IMG_20200725_215155.jpg
Advertisements