Need Help!- Please enlighten me on pinch turning in a ZL-203

[Letter Buck]

Hello Everyone,
I thought I would throw this out there and get some feedback. I am using a Mori Seiki ZL-203 I need to pinch turn a peice of 4.25'' 1018 down to .625. I was thinking of using a canned cycle for each turret with different start points on the Z, then use wait codes to time it. Am I on the right track? I assume the second turret would have a DOC of twice that of the first turret?

Thanks in advance. This site is a great tool!

[WOLOG]

If I am correct, the depth of turret 2 is the same as turret 1. Your feed rates are doubled due to the fact you are only cutting half of the part. What control do you have on this machine? There should be a Capps function for pinch turning. check that out and I will see what I can find out

[Letter Buck]

Originally Posted by WOLOG If I am correct, the depth of turret 2 is the same as turret 1. Your feed rates are doubled due to the fact you are only cutting half of the part. What control do you have on this machine? There should be a Capps function for pinch turning. check that out and I will see what I can find out

I think what you are referring to is "balance turning" which actually has a G code for it. Mainly used for work pieces that arelong and prone to chatter. Using that, your upper and lower need to be dead on with each other. (From what I have read anyways)

I will look at the control on Monday.

[WOLOG]

http://www.feature-cam.co.uk/html/bo...ti_turret.html

Check this out. I just found this while looking for more info. Hope this helps.