Sourcing Hard-Milling Endmills
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    Default Sourcing Hard-Milling Endmills

    Looking for 1/32" dia ball endmills for some high volume, semi hard, engraving- material is 4340 rc36

    Is IMCO still on top of the hard milling game or should I be entertaining another tooling Mfg.?

    thanks in advance!

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    rc36 is pretty soft for hardmilling. A good quality 4 flute coated ball would also do the trick.

    IMCO is great, can't go wrong with them.
    OSG also has some great hardmilling stuff.

    I also have some great hardmilling. I currently don't have 1/32 but can have them made and stocked as a standard item. Closest I have is 1mm.
    .0394 Ball End 2 Flute Hard Milling End Mill 1mm dia x 2mm LOC PVD Coated MariTool

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    Quote Originally Posted by fmari --MariTool- View Post
    rc36 is pretty soft for hardmilling. A good quality 4 flute coated ball would also do the trick.

    IMCO is great, can't go wrong with them.
    OSG also has some great hardmilling stuff.

    I also have some great hardmilling. I currently don't have 1/32 but can have them made and stocked as a standard item. Closest I have is 1mm.
    .0394 Ball End 2 Flute Hard Milling End Mill 1mm dia x 2mm LOC PVD Coated MariTool
    Frank- I appreciate you reaching out. I am doing some machine testing so lead time may be an issue if we were to have you guys make us some 1/32" 4 fluters. Should I contact someone at the shop to see what the lead time would be or would you be able to say offhand what the lead time would be?

    Im affraid the cross section on the 2 fluter would make the tool too weak for the parameters my customer has spec'd. right now im running 9000rpm at 350mm/min with ultrasonic power.

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    Normally 2-3 weeks but my vendors are so busy I would say 3-4 to be safe. Let me know what flute length and I will get them going. No big deal they should be on my website anyway. It is a common size. Will be on a 1/8 dia x 1.5 blank unless you want a larger shank.

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    Quote Originally Posted by fmari --MariTool- View Post
    Normally 2-3 weeks but my vendors are so busy I would say 3-4 to be safe. Let me know what flute length and I will get them going. No big deal they should be on my website anyway. It is a common size. Will be on a 1/8 dia x 1.5 blank unless you want a larger shank.
    3/32" or less. The shorter the better

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    Quote Originally Posted by allloutmx View Post
    3/32" or less. The shorter the better
    If it's just engraving would you be better off having the 1/64R blend right into the transition curve on the blank body? No cylinder, just the full radius?

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    Quote Originally Posted by Milland View Post
    If it's just engraving would you be better off having the 1/64R blend right into the transition curve on the blank body? No cylinder, just the full radius?
    Absolutely- that would be desirable for sure-he was saying he wanted to throw them on the shelf, so I wasnt going to ask him to stock a custom tool for little 'ole me. If this were an option- we would definitely be willing to explore that in the future.
    Im only goin 100microns into the part so i really dont need much flute

    I tried the harvey engraving tools...Ive never had much success with them and this time was no different. Even with Ultrasonic power- im busting the tips off.

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    Quote Originally Posted by allloutmx View Post
    Absolutely- that would be desirable for sure-he was saying he wanted to throw them on the shelf, so I wasnt going to ask him to stock a custom tool for little 'ole me.
    Then there's the fact that they might ship a day late then you'd have to come here to complain about it.

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    Quote Originally Posted by allloutmx View Post
    Absolutely- that would be desirable for sure-he was saying he wanted to throw them on the shelf, so I wasnt going to ask him to stock a custom tool for little 'ole me. If this were an option- we would definitely be willing to explore that in the future.
    Im only goin 100microns into the part so i really dont need much flute
    Then ask for that - probably others doing similar shallow work would like them too.


    I tried the harvey engraving tools...Ive never had much success with them and this time was no different. Even with Ultrasonic power- im busting the tips off.
    When you get a second please link to the Ultrasonic tech (presuming this isn't home-grown), I'd like to see what their claims are.

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    Quote Originally Posted by allloutmx View Post
    Even with Ultrasonic power- im busting the tips off.
    What do you mean by ultrasonic power?

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    Quote Originally Posted by Milland View Post
    Then ask for that - probably others doing similar shallow work would like them too.




    When you get a second please link to the Ultrasonic tech (presuming this isn't home-grown), I'd like to see what their claims are.
    We are the machine tool MFG.

    Manufacturing Technology for Optics, Ceramics & Metals | OptiPro

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    Quote Originally Posted by CAMasochism View Post
    Then there's the fact that they might ship a day late then you'd have to come here to complain about it.
    its a new game called "strike one youre out!"

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    Quote Originally Posted by Mtndew View Post
    What do you mean by ultrasonic power?
    It might be something like this: Accuserve MTSUltrasonic

    Not sure I'm a believer (I'd think axial vibration would lead to pulverizing the brittle carbide cutting edges), but I'm always up for learning something new...

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    Quote Originally Posted by Mtndew View Post
    What do you mean by ultrasonic power?
    high frequency pulsating rotational tool

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    Quote Originally Posted by allloutmx View Post
    high frequency pulsating rotational tool
    Like this?

    Ultrasonic Cnc spindle - YouTube

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    Quote Originally Posted by Milland View Post
    If it's just engraving would you be better off having the 1/64R blend right into the transition curve on the blank body? No cylinder, just the full radius?
    Not to highjack, but this in a 1/32R TiAlN coated and uncoated would be awesome.

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    Quote Originally Posted by AARONT View Post
    Not to highjack, but this in a 1/32R TiAlN coated and uncoated would be awesome.
    Hear that, Frank? You're going to owe me royalties for my cutter design skills!


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    Quote Originally Posted by allloutmx View Post
    Thanks, I didn't see your post before throwing up my links and comments.

    Edit: And now I know who to go to with my next glasses prescription...

    Those are some very sweet looking tools.

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    Quote Originally Posted by allloutmx View Post
    high frequency pulsating rotational tool
    That's cool! I didn't even know something like that existed.

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    Ok. I will have a super short one made. I understand. I will ship it yesterday so I don't get another strike, :-).

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