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Type: Posts; User: gregormarwick

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  1. Replies
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    Like I said, Sandvik are not the only ones using...

    Like I said, Sandvik are not the only ones using it...
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    It really depends on the intent of note-leaver....

    It really depends on the intent of note-leaver. Only you know the person well enough to decide what their intent was when they wrote it, no way for us to know that. However it seems that you have...
  3. I know you hate Sandvik, you've most likely told...

    I know you hate Sandvik, you've most likely told me why in the past but I forget.

    I buy tools from a number of sources, but Sandvik are still my favourite. You will never convince me that Iscar...
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    Yep that's SACT. Interesting/curious! Maybe...

    Yep that's SACT. Interesting/curious!

    Maybe Bill or Kevin can shed some light on that?

    I will try and remember to watch that next time I get a chance.
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    On my Fanucs (pretty sure all of them, but...

    On my Fanucs (pretty sure all of them, but without going to check I could be wrong...) show SRPM (programmed speed) and SACT (actual speed) separately on the screen.

    SACT AFAIK comes from the...
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    Yes and no. TiAlN / AlTiN is supposedly...

    Yes and no.

    TiAlN / AlTiN is supposedly technically more likely to adhere than TiCN, but my experience has been that TiCN is the worst culprit. I have theorised that it's because TiCN coatings are...
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    Was that sACT or? It's probably an artifact of...

    Was that sACT or?

    It's probably an artifact of how it's implemented, like on our Doosan the C axis loadmeter is always enabled and reads 2500% whenever the main spindle is running in turning...
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    Sandvik have been pushing that front for nearly a...

    Sandvik have been pushing that front for nearly a decade now with ISO 13399. It's only in the last few years that others have started adopting it too, but it's gaining traction.

    On the CAM side I...
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    I can't honestly say if I've ever noticed the...

    I can't honestly say if I've ever noticed the numbers on the screen when rigid tapping before, I'll have to keep an eye out for that, out of curiosity if nothing else!

    Whenever I'm testing out a...
  10. You need to set up the angle on your grinder by...

    You need to set up the angle on your grinder by indicating the good arbour. Use a tenths indicator and try and get as close to zero indicator movement as you can along the length of the taper. Then...
  11. We'll see when the pricing turns up. Point is,...

    We'll see when the pricing turns up.

    Point is, there's practically no engineering in that product, so I don't get the fanfare. It's a basic C frame VMC with a bolt on B axis spindle, and a turning...
  12. Come on, it was clearly hyperbole. ...

    Come on, it was clearly hyperbole.

    Nonetheless, my point was that it is a very poor distance cousin of a real b axis millturn, and I really don't think that's an unfair assessment.
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    They have some specialised tools of their own...

    They have some specialised tools of their own (gear milling stuff), but otherwise not that I know of.
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    TiCN is by far the worst offender for build up in...

    TiCN is by far the worst offender for build up in aluminium. Usually when this is discussed on here a few people will pipe up stating that they use it all the time in aluminium and it works fine, but...
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    For general machining of wrought alloys...

    For general machining of wrought alloys completely uncoated is fine, polished flutes the better. If you're getting into production numbers then you're going to want aluminium specialised coatings...
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    Yes. I explained in the other recent rigid...

    Yes.

    I explained in the other recent rigid tapping thread why I don't like those for rigid tapping.

    Edit: sorry wrong thread. It was your thread about the broken collet
  17. Better one here, this is for DIN 2080 which is to...

    Better one here, this is for DIN 2080 which is to all intents and purposes the same as NMTB (metric drawbar thread is the only real difference)

    https://i.imgur.com/26GLmBL.png
  18. You can get those from Tungaloy. TUNGALOY...

    You can get those from Tungaloy.

    TUNGALOY United Kingdom | Turning > External Turning > Turning Indexable Inserts > TPGHR/L-W10 | TUN6997998

    Just one example, not the only insert available...
  19. The head is a Taiwanese clone of the D'Andrea...

    The head is a Taiwanese clone of the D'Andrea Testarossa which is a very rigid system with pretty good balance characteristics when used close to centreline. If it's a well made item, that should be...
  20. As much as I hate to suggest it, that information...

    As much as I hate to suggest it, that information can be found in the Machinery's Handbook.

    Alternatively a google image search should throw up plenty of results.

    For reference, the gauge line...
  21. Surface speed is way too low, which is probably...

    Surface speed is way too low, which is probably not helping. You're more in carbide territory there. Any particular reason for cermet?
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    Thanks, like I said I've not run up against this...

    Thanks, like I said I've not run up against this often as tapping on centreline in a lathe is just not something I've needed to do often.

    Regarding our Doosan, it's a bit of a black sheep - a 2006...
  23. When I said scrapped, it was.because if you...

    When I said scrapped, it was.because if you remove too much material from the taper the overall geometry will be altered to the point that it will not fit in the spindle - it will contact the face...
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    Douglas, do you know if this is a Doosan thing or...

    Douglas, do you know if this is a Doosan thing or does it apply to Fanuc machines universally?

    If the latter it would explain some problems I've had trying to do this on some of our other machines...
  25. Nowhere close to the correct taper angle - right...

    Nowhere close to the correct taper angle - right now you have only a very small amount of contact at the large end of taper, but it's impossible to tell exactly how much because of the excessive...
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