Tapping with a Mazak

[RMagnusson]

After spending 2 hours searching through the archives I've learned some about tapping, but I'm not quite (not nearly) 100% yet. For starters I don't know what the M29 in line 116 is trying to do. Our mill doesn't use M29.

 

 

Here's the code that I just posted:

( TAPPING M6 X 1.0 HOLES )

N104 M8

N108 T55 M6

N110 G0 G90 G54 X.11 Y25.1245 B90.

N112 G43 H55 Z13.55

N114 G95

N116 M29 S809

N118 G98 G84 Z9.05 R9.8 F.0394

N120 G80

N122 G94

N124 M9

N158 M5

N160 G91 G28 Z0.

N162 G28 X0. Y0. B0.

N164 M30

 

We have a PFH-5800 w/ Fusion 640M and I'm using an Emuge M6 x 1.0 roll form tap. Im machining in cast aluminum, and predrilled to 5.5mm. Based off of the manufacturers suggestion of 50-70 SFM I got 809 RPM and 31.8 IPM.

 

I will be using lots of flood coolant @ around 8%.

 

Any info or suggestions greatly appreciated as I only have 2 taps and don't really want to break either one.

[3R!< W3NG3R]

We took the M29 out of the post on our machine. Was this from the generic post?

 

If you go through the manual (I know!!!) somewhere you will find samples of what you need.

It makes a difference if it is rigid tapping or not too.

 

Here is what my post puts out for rigid tapping.

 

T199 T00 M06 ( 1/4-20 TAPRH)

(MAX - Z.1)

(MIN - Z-1.)

G00 G90 G54 X.1675 Y1.6707 S1069 M03

G43 H199 Z.1 M08

G95

G99 G84 Z-1. R.1 F.05 H1

G80 M09

G94

M05

G91 G28 Z0.

G28 Y0.

G90

M30

 

The H value needs to be there, but I cannot remember what the values meen. That is shown in the manual with everything else.

[Ocean Lacky™]

no M29 listed in my book (VTC300C/640M)

[crazy^millman]

Well if you got Mazatrol use it and peck tap it and be done with it and not worry about breaking your tap.

 

HTH

[Psychomill]

You can do as Ron said....

 

Or, for G code...

 

Get rid of the M29. Mazaks don't use a synch code unless you have an oldie with a Fanuc board. The G84 will work with your feed in IPR as long as you have an H1 or the machine parameter is set for IPR. Otherwise, you use IPM. If you use G84.2, then the tapping is in IPR regardless.

 

quote:

---

The H value needs to be there, but I cannot remember what the values meen.

---

The H value doesn't need to be there but in your case, it does because your machine parameter is probably set to asynchronous.

 

[RMagnusson]

Thanks for the input gentlemen.

 

Is synchronous tapping (G84.2 for me) the same as rigid tapping?

 

I'll check out my manuals for an example too.

[3R!< W3NG3R]

quote:

---

Is synchronous tapping (G84.2 for me) the same as rigid tapping?

---

yes.

[3R!< W3NG3R]

thanks Psychomill,

 

I will look into this. mazaks have so many parameters that we are still learning them.

[RMagnusson]

Nicest threads I've ever made.

 

Thanks for the help folks.

[Psychomill]

[3R!< W3NG3R]