Help! How to lathe this part

[Rocky16]

I do not know how to lathe this spiral, can you help me?

Material 9310 steel hrc 36-42

88396-065 -.stp

[David Colin]

You probably have profile definition and spiral pitch on your drawing. You will need a custom tool and can use a standard thread cycle to program.

If needed (it depends of profile definition), maybe you ll be able to rough with a standard D or V insert and the same thead cycle.

[SlaveCam]

You can turn any round profile with controlled threading (G32 on fanuc) using any round insert that is smaller than the profile radius.

- Draw/extract the profile of the thread (single, not the whole repeating thread)

- Create a finishing operation on the profile

- Save the toolpath geometry in backplot

- Put some points over the toolpath geometry, the more points, the more accurate and smooth the profile will be

- Break the toolpath geometry at the points

- Post the finishing cycle to get the coordinates.

- Add G0 in front of each coordinate and G32 Z-(desired depth) after it

 

That should do it. Because Mastercam cannot do this automatically I am going to write a script myself next time I need to turn multi-start thread with custom profile (it was quite a drudge the last time

[cherokeechief79]

looks like a broom thread.

I think that's what its called.

I recently cut one of these but had to use a g32 cycle as stated above.

if you use a canned cycle it tried to feed in on a 30 deg angle to the correct depth and didn't work out right.

we had to use the mating part for a gage. lucky we had it because I don't know how we would have properly measured it.

[Guest]

I do not know how to lathe this spiral, can you help me?

Material 9310 steel hrc 36-42

 

Is there a reason you don't share this as a Mastercam already set up instead of having everyone who looks at it have to set it up?

 

Have you asked your reseller in Vietnam?

[Rocky16]

Thank you for your help. My customer gave me a screw to test. I start doing follow slavecam

[Rocky16]

This is my lathe with material 9310 steel hrc 38.

Can you give me some suggessions?

[DanielGingras]

Hello Rocky16,

 

Could you send me a PM with your SIM# or the name of your reseller?