face groove

[mtnmike]

I am trying to put a .02 wide face goove in 316ss. it is on a AS fitting. I have a .02 wide scientific cutting tools face groover to do this with but I keep breaking tools. Has anyone had any luck with this before?

[chris m]

Are you breaking on the way in or the way out? Small grooving tools often break on rapid retracts; try feeding out and see if your tool survives.

[mtnmike]

Are you breaking on the way in or the way out? Small grooving tools often break on rapid retracts; try feeding out and see if your tool survives.

it is breaking on the way in

[chris m]

Does it blow up as soon as it touches the part?

Is the plunge diameter in the tool's range (if there is one for a tool that small)?

Is the tool on center?

Is the tool square to the part?

 

 

Does the tool make it into the part to a certain depth before it blows up?

Can you peck it before that depth?

What speed are you running (should be SLOW I'd think)?

How much feed are you running?

Is the part rigidity good?

Is the toolholder rigidity good?

Is your coolant concentration high enough?

 

Man there are about 1,000 factors involved in this; did you contact Scientific Cutting Tools?

[jeff]

As Chris said there are so many factors.

I would first look at SFPM and cut depth/peck feedrate.

With something this small it MUST be on center, there isnt much leeway here.

[Mic6]

Was the correct style ordered? I've seen this problem on a small face groove when I was ordered a tool for internal grooving and it had zero relief.