mazak 640m circular tornado milling cycle

[magneto259]

Has anyone tried this canned cycle to do thread milling? I'm just curious because it asks for pitch one which looks like a chamfer at the beginning of the hole and pitch 2 which is in the actual hole you are wanting to thread mill.
Any help is appreciated. Thanks in advance!!!!!!

[Rcky123]

try this for thread Milling:Thread here is 1 1/16-12
Describe tool as Tap in Tool Data Exp:--un17s/12
In Size Box-- Enter the Dia of tool used
Where it says Fixed!!! Change to Floating

In Program:
Describe thread cycle as a tapping cycle:
UN Unit Nom Major Pitch Tap-Dep Chmf Chp
(+) 1 Tapping un17s-12 1.0625 .0833 . 75 0 0
sno tool No Hole Hole-Dep Per-Dia Pre-Dep Rgh-Dep
1 cdrl
2 cdrl
3 Tap un17s-12 1.0625 .75 Planet .02 Fix P.0833

Fig Ptn z x y
1 Pt 0 1 2

Now go and curser back up tp Unit1 Line
Hit Right arrow Key and select TPC
Change D49 to 0
Should Put a (+)in front of Unit #


This should work!
Proven on M Pro:M Controls
On mt pro par. is U63
this info use provided by :Jim Stone 11/22/04 (guess Mazak)
It did work for us! Be safe and run dry to prove

If single pointing use Tornado
I do have more info if you need it.

-

[magneto259]

Thanks for the reply. I 'll give that a shot. Have you ever used the Tornado cycle?

[Rcky123]

Here Is What I Understand About The Tornado. As Of Yet I Have Not Used It For Thread Milling. But I Have Used It Milling
You Will Lose The Last Thread. Because It Makes One Arc Around The Bottom Before Pulling Out. From What I Seen Using Tornado Milling Cycle.it Should Be The Same.

It Would Be Best To Start At Least .100 Above Cutting Point Due To Rapid Move.(starts At Center Od Bore And Rapids Out And Arc Into Cut)
And Thread At Least One Thread Deeper Than Required.for The Arc Out At End Of Cyclce.
Watch Out Off Clearance.
I Will Try It Tonight! Try A Couple Diferent Cases Tonight.

[magneto259]

Let me know what happens i'd really appreciate it! Thanks in advance!!!

[jimiscnc]

I think you must call surface finish as "0", which is NOT A SOFTKEY!

This forces all motion to be helical, even the pull out.

any number other than "0" results in a 360 sweep at the bottom with Z axis fixed.

Jim