Hello.
I need to cut a logo into a stainless plate about 2mm max depth…anyone might know good bit to do this? 1/8, 3/16 preferred.
Tnx!
I mill a bunch of stainless on a manual milling machine, and I must say that keeping proper chip load is key. Especially since you’re likely not running flood coolant (but correct me if I’m wrong). I usually run a 4FL 0.25” carbide w/ coating, since I often snap or cook the smaller diameters from overheating on my manual mill.
Just note that 316ss is about 20 points higher in HRB than 6061-T6.
Post your results because I’d like to know for possibility for milling SS on my PRO machine.
Best of luck
I recommend completely abandoning standard engraving tools in favor of solid carbide end mills.
A 1/8-inch tool makes for an excellent starting point, particularly if your logo design features fine details.
If the design lines are broader and more open, you may also opt for a 3/16-inch tool. I suggest checking out this article: “What Are the Common Cutting Tools Used on Lathes?”
Specific specifications are recommended as follows:
Double-flute or triple-flute solid carbide end mills.
If conditions permit, it is best to select tools featuring a TiAlN / AlTiN coating.
While V-bits are suitable for extremely shallow cuts, attempting to use them to machine stainless steel to a depth of 2 millimeters will typically result in rapid tool wear and render the tool unusable.
Furthermore, never attempt to cut to full depth in a single pass; instead, employ a “shallow-cut, multi-pass” strategy by removing material in successive layers. If conditions allow, please use cutting fluid (coolant) during the machining process. Should the stainless steel overheat during machining, it will cause you significant trouble.