High Speed Hard Milling

[MachineSMM]

I am looking for some information on High Speed Hard Milling
420 Stainless at 45 Rc

I would like to know the best type of tooling, how to program for this, stepover depth of cut so on.

Any information would be greatly appreciated.

Thanks in advance

[hardmill]

First off lets talk about what kind of machine you have(is it a good machine), holders, does your machine have aceleration/deceleration option, and are you capable of running
large programs.

[MachineSMM]

OK

Currently I am using a HAAS VF-2 with a high speed control. I would assume that means it has the aceleration/deceleration option. Yes it can handle large programs.

I am using Mastercam as the programming software.

There is a chance that I might be getting my hands on a newer Makino VMC. I know that this machine would be the best, but I do not know when this could be happening.

I am interested in any information that you could provide me with for both machines.

Thanks in advance.

[hardmill]

I am also a mastercam user so i know first hand the toolpaths
will work.
What will you be cutting.from solid? Are you roughing BHT?

You want to use z-level roughing method.
Side milling you use 5-7% step over.

Cutters: It all depends what you want to spend. Obviously
the more you spend the better the tools.
You want tialn and ALtin coated cutters.
Kobelco,Hitachi=the best
Osg,robjack=60-70% price & performance
Fullerton,roundtool=good for rough & semi finish.

If you want to see some sample Videos go to
www.hardmilling.com

If you need it programmed for you we can set you up with
what ever you need. Just tell Dale Steve sent you.


Good luck!!!

[MachineSMM]

Usually I will be cutting directly from solid. Would I be better of roughing out the cavities BHT?

I have been doing a little of it but I think that we will be getting much more buisness shortly.

Your link didn't work for me.

[hardmill]

Sorry the link was missing a "l".
Its entirely up to you whether or not to rough BHT.

[MachineSMM]

Is there any advantages either way, speed, cost?

[hardmill]

Actually if your tooled right you can rough quicker BHT.
Then you free up the machine to rough while your tool
is out to heat treat. Its all a matter of how you personally
want to do it. Inserts to rough are much cheaper than
end-millls for hard milling.

[F.Adams]

Makino offers a Die Mold Process training course in our Aurburn Hill office (Detroit) and covers all the areas you are interested in. It's a 3 day course. You get 2 free seats with the purchase of a new machine. If you are buying a used machine, you can still attend the course, but a fee will be required.

[hardmill]

Welcome to the forum F. Adams
Good to have you here.

[Oopee]

[QUOTE]Originally posted by hardmill
[B]


Cutters: It all depends what you want to spend. Obviously
the more you spend the better the tools.
You want tialn and ALtin coated cutters.
Kobelco,Hitachi=the best.....

Hi, I would add NS TOOLs to the list


Osmo

[MachineSMM]

What does NS stand for. Do you have a link?