Re: [CAD_CAM_EDM_DRO] Inserts R US

Hello Jan,
Befoer you start to use turning or milling inserts it is very
important that you tune up your machine!!!!!!
Adjust the gibs, the nuts and avoid vibrations.
One point many people often do not check is the toolpost or carriage basement.
Frequently it is worn on the base so that it can tilt and vibrate.
Any vibration will damage your inserts.

Another very important point is: If the insert is only 0.1mm of center it is in danger.
Specially cut of inserts break their tips easily.
I hope this is a helpful hint.
Sven Peter

JanRwl@... wrote:

> In a message dated 27-Apr-01 22:32:13 Central Daylight Time,
> jvicars@... writes:
>
> > Is there a cheap source of no-name carbide inserts? These **** inserts are
> > gonna break me? Any suggestions?
> >
> JV: I began using insert-tooling only a decade back, and only avocationally,
> so I have used so little, my total cost for inserts has been tolerably-low.
> However, they are clearly way-overpriced!
>
> So, recently, I saw some "standard size" plain-flat triangles (TiN coated,
> even!) in the Enco or HF catalog, and ordered some (same price, each,
> individually, or in packs of ten! Go figger! They were out of the 1/64th R
> I wanted, so they substituted some with HUGE corner-R's (must be at least
> 1/32"?). They are "hard" and all that, but do NOT seem to be as "tough" as
> U.S.-made inserts. But I am only a hobbiest, with NO "training", so, what do
> I know! But the price was not just "cheaper", but VASTLY-cheaper, so maybe
> "inch-for-inch" of cut, they are a bargain. I'd have to do a "study" to find
> out, and, well, I ain't THAT bored!
>
> One thing: I find I hafta make "custom bits" now and then, and I have saved
> my "nicked, and/or worn-out" inserts all along, and silver-solder (braze)
> them to home-brew holders made of 3/4 x 3/4 1018, and then a little work with
> a diamond-grit wheel, and I got a custom lathe-bit. A little time, and 50¢
> worth of bar-stock, and a right-good tool is ready! Never have tried brazing
> a TiN coated insert. Wonder if that impedes, or burns-off, or what???
> Anyone know?
>
> Jan Rowland
>
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