Hello Everyone,
I am new to the group and this is my first posting. Here's my problem. I am trying to single point a M30 x 3.5 thread and the thread is not coming out right. I've tried running the thread on 2 different cnc lathes (Ameri-Seiki TC-5XL with a Fanuc OTC control and a Mori-Seiki SL-6 with a 6T control). I've tried using a G76 threading cycle and a G92 threading cycle and the pitch of the thread seems to be off. I'm running at 400 RPM and a thread lead of .13779. The insert is rated for a 3.5 thread pitch, so I am at a loss as to why the thread is not coming out right. I've run hundreds of threads before on both machines with no major problems, although this is the coarsest thread I've ever run.
Any suggestions?
I am new to the group and this is my first posting. Here's my problem. I am trying to single point a M30 x 3.5 thread and the thread is not coming out right. I've tried running the thread on 2 different cnc lathes (Ameri-Seiki TC-5XL with a Fanuc OTC control and a Mori-Seiki SL-6 with a 6T control). I've tried using a G76 threading cycle and a G92 threading cycle and the pitch of the thread seems to be off. I'm running at 400 RPM and a thread lead of .13779. The insert is rated for a 3.5 thread pitch, so I am at a loss as to why the thread is not coming out right. I've run hundreds of threads before on both machines with no major problems, although this is the coarsest thread I've ever run.
Any suggestions?