Lathe 360 brass tool material and speed and feed reccommendations

Jacob653 · Jul 8, 2021

Hello,

I'm doing a big order with material of 360 brass on a cnc lathe. I have to drill, groove, and tap this material. Could I get some tool recommendations (material of tool/coating) and then the speed (SFM) and feed for the drilling and grooving. I'm also planning on using flood coolant so I can go as fast as possible.

TeachMePlease · Jul 8, 2021

Carbide. TiAlN. As fast as you can. .0015 - .010 per tooth.

It's 360 brass.

Jacob653 · Jul 8, 2021

Thank you for your suggestions. Would you reccomend anything besides carbide. Carbide tools are to expensive for this job.

Booze Daily · Jul 8, 2021

Well...
How about HSS then?

Screwmachine · Jul 8, 2021

How big is the order? 360 is literally the reference material for machinability, if you gotta use HSS (?!), look up the speeds and feeds for the carbide you can't afford (every maker supplies recommended f/s), and run the same- not even kidding.

On edit- you want tool and coatings recs but not for carbide, so HSS is the only answer, no need for coating or preground anything, just get good stuff it's easy as pie to grind since it's zero rake, run the snot out of it.

Scruffy887 · Jul 8, 2021

You say it is a big job? And carbide too expensive? HSS will do the job and use a flat rake on your drill. Otherwise you will get a brass birds nest. Depending on hole depth of course.

FredC · Jul 8, 2021

Had a friend that ran a billion piece order in brass. Needed a sharp pencil to get the job and make a profit. No clue what a big job is to you and how much material is being removed per part. Depending on thread size I would look at form tapping the threads.

david n · Jul 8, 2021

Jacob653 said:
Carbide tools are to expensive for this job.

Huh? Too expensive? One cheap CNMG insert could literally run a few tons of brass........................................

What tooling do you normally use in your lathe? Just run that.......................

Shiny uncoated HSS drills(or cobalt............. but it might cost too much :rolleyes5:

), shiny uncoated taps.............

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Lathe 360 brass tool material and speed and feed reccommendations

Jacob653

Plastic

TeachMePlease

Diamond

Jacob653

Plastic

Booze Daily

Titanium

Screwmachine

Titanium

Scruffy887

Titanium

FredC

Diamond

david n

Diamond

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