I have never tried rigid tapping metric threads before, I am programing in Inches, will a simple conversion work?
Normally I would just tap them out of the machine but I have over 40 m4x0.7 holes on this particular part. Anyone tried this?
I have never tried rigid tapping metric threads before, I am programing in Inches, will a simple conversion work?
Normally I would just tap them out of the machine but I have over 40 m4x0.7 holes on this particular part. Anyone tried this?
Just do the conversion and it should all work out just fine. The tap won't care about a couple of tenths...
On all equipment there are 2 levers...
Lever "A", and Lever F'in "B"
Works for me
www.integratedmechanical.ca
No need to be off a couple tenths. The feed for M4 x .7 is .0275591" per rev.
Just to clarify the feed rates for the Fadal control, the control will round the feed rates to it max default decimal places. Using excess of 4 decimals places on the "F" code means nothing to the control.
Neal
Programming CNC controls since 1978 I have found that various controls have the capacity to use different "F" code values for threading. For isntance the Fanuc lathe control can use 6 digits with an option applied.
The only concern I would have using more than 3 decimal palces it if I was creating a dry seal thread with a "J" root.
Neal
Thanks for the info, it all worked out well. I went ahead and tried a hole in a piece of scrap just to be sure.
4 Divided by 25.4= .1574
.7 divided by 25.4= .0275
.1574-.0275= .1299 is the minor dia.
1 divided by .0275= 36. is threads per inch.
I don't usually thread mill small holes unless it's tough material.