Rifling cutter head feed rate

[lazylabs]

I think we have a couple barrel makers that cruise through here. When your cut rifling a barrel what is the feed rate of the cutter as it passes through the barrel? I believe the depth of cut to be around .0001? Does the feed rate change per caliber or groove width?

Thanks

 

[shortgrass]

I'd say that's one of those "tid bits" of information that won't be freely given. Some stuff is just learned the hard way, trial and error, and experience!

 

[lazylabs]

I am guessing the general feed rate isn't that "secret" as compared to cutter head design, material and geometry that they have really worked on. I am guessing it's a very large range though. If you consider people are using everything from the P&W 40's era machines to new fancy CNC everything.

 

[shortgrass]

If it's that uncomplicated, just calculate SFM, just like any other machining operation.

 

[lazylabs]

I would really just like a real world number from someone that actually does it. If I don't get any answers I might just call a couple of the cut rifle guys and see if they are willing to give me a range. I just hate to interupt them for trivia questions.