'help with threads in fanuc control cnc lathe'

help with threads in fanuc control cnc lathe

jose flores (70.131.48.93) -

looking for help with programing for threads in cnc lathe with fanuc control

Comment #1 DAVE (2) from HAMDEN,CT -

g76 code will give you a a treading cycle.lets say we were going to turn a .312 /24 tread the code would go like this

x=minor dia. of thread

z=length of thread d=1st pass cut

f=feed per revolution k=depth of thread

d=1st pass cut f=feed per revolution

Comment #2 Jason (71.187.251.174) -

Just use G92, it is a lot easier. a 1/2-20 thread would go as follows

G0 G99 X.55 Z.1

G92 X.46 Z-.75 F.05

X.440

X.425

WORK YOUR WAY DOWN TO MINOR DIA.

G80 G0 X.55 Z.1 M9

Comment #3 Bill from London (80.225.188.161) -

M24 = end chamfering off

G76 X_Z_K_D_F_A_

X = Minor Diameter on OD Threads #

= Major Diameter on ID Threads #

Z = Length of Thread #

K = Depth of the Thread #

D = The number of Passes "cut"

ie (K x K / cuts "you want" square rooted)

F = Pitch mm

E = Pitch ins"

A = Angle of thread 0 to 60 degs

M23 = end chamfering on

Name:           
E-Mail:         

Optional (please add to our directory first)
Web Link:       
Link Title:     

Message:

Note: once you register your email address with CNC Machine it is used across our whole network of forums and blogs. You can create seperate profiles for each forum or blog, but use the same login.