Author Topic: Mill Creep  (Read 11629 times)

Arbalest

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Re: Mill Creep
« Reply #45 on: January 06, 2015, 07:52:47 PM »
I've got a small end mill with absolutely no teeth on the bottom at all, it's perfectly flat. Is this normal or has it missed a stage in production? It's brand new, never been used.
Might need a picture of that

Judging by the weight it's solid carbide, about 5mm.


Offline smfr

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Re: Mill Creep
« Reply #46 on: January 06, 2015, 08:20:32 PM »
Looks to me like it's been ground down. Did you buy it new?

Simon

Offline Mosey

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Re: Mill Creep
« Reply #47 on: January 06, 2015, 08:21:24 PM »
Glad you reached a good solution  :ThumbsUp:  :ThumbsUp: Do you think that the old collet had worn to a taper?
So, you didn't buy the ultra precision collets,  you saving the money for "cutters :lolb: :lolb: :lolb: :mischief: :Jester:"

Cletus
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Offline Mosey

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Re: Mill Creep
« Reply #48 on: January 06, 2015, 08:21:59 PM »
Glad you reached a good solution  :ThumbsUp:  :ThumbsUp: Do you think that the old collet had worn to a taper?
It would seem so!
Mosey

Arbalest

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Re: Mill Creep
« Reply #49 on: January 06, 2015, 11:00:32 PM »
Looks to me like it's been ground down. Did you buy it new?

Simon

Yes. That's how it came, never been used.

Offline Allen Smithee

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Re: Mill Creep
« Reply #50 on: January 06, 2015, 11:14:29 PM »
I've got a small end mill with absolutely no teeth on the bottom at all, it's perfectly flat. Is this normal or has it missed a stage in production? It's brand new, never been used.
Might need a picture of that

Judging by the weight it's solid carbide, about 5mm.



Is it just me, or does it look like the flutes spiral in the wrong direction as well?

AS
Quidquid latine dictum sit altum sonatur

Offline b.lindsey

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Re: Mill Creep
« Reply #51 on: January 07, 2015, 12:03:45 AM »
I agree Allen...that's a strange one. I can only assume it was designed for a specific purpose though I have no idea what that is  :headscratch:

Bill

Offline GailinNM

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Re: Mill Creep
« Reply #52 on: January 07, 2015, 01:26:17 AM »
It's a Right Hand cut Left Hand spiral.  They are used extensively for profiling thin materials as they tend to force the work downward against a support so less clamping is required.  The profile is typically only a little oversize from the support.  They also have the advantage of the swarf is directed downwards where it can be collected easier. Since they are only used for profiling there is no need for cutting edges on the end.  I have used several of them.

Gail in NM
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