04-20-2015, 01:35 PM
(04-18-2015, 08:06 AM)PixMan Wrote: OK. So now I'm wondering why the Iscar is a better option. A chipbreaker design is a chipbreaker design. No company has a magic bullet that hits every target in the center, and no insert maker has one chipbreaker design that is going to break chips in every material at every depth of cut and feed rate.
I gave two chipbreakers in a single grade which cover the widest range of those materials, cutting parameters and workpiece configurations of any inserts I know and have tested. I'm out.
KEN, KEN
Please, our humble apologies at the outset.
Slow down. It's all my fault coupled with some misunderstanding. Hear me out.
You gave us Two Types of Inserts and we still can't fathom the application or exact usage. We will use one to do the Rough cutting and the other to obviously Finish the piece, meaning that we will need change either Toolholder or change the Insert in the Toolholder to accomplish the given task with these TWO Different Inserts. May sound stupid but that unfortunately, is our take on how Two totally Different Inserts would be used. This change in Inserts on the run seemed daunting enough for us as we mentally grappled with how one ought to maintain exact Settings on the machine whilst trying to finish the piece at the same time. Easier said than done !!!
We did get Prices from Walter and the Iscar WNMG we looked at was approximately Fifty Percent cheaper than either of the Two Walter's cost wise. Well, unfortunately we all have our financial constraints and we are all not able to randomly fork out the Bucks for Tooling, which made the Iscar positives look a little more appealing. And that was without taking into account the cost of getting another new Toolholder - which really made no difference at the end of the day. So, like DAVE said, we were looking at our options or more so, the alternatives.
Please, don't take this personally. We know U mean well, would always advise sensibly whilst wishing the best for us.
We have not finalised our purchase and, after reading up a bit on the effect of Rakes as well, are now more than ever convinced from exactly what U just said above, that the use of Negative Tooling would really have minimal cutting difference with the superb Inserts U have so highly recommended. And this too, without us having to expend on additional Toolholders.
The bottom line - if we can't afford these today, then tomorrow has more hope and we will eventually get either of the Walter's, LORD WILLING.
So please, U can't stay out 'cos Your invaluable input is needed more here than elsewhere.
We are feeling terrible about this, anyway
aRM