| Gallery, Projects and General > How do I?? |
| Milling Titanium |
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| DaveH:
John, Thank -you that's nice of you. Ask your friend if he runs the spindle faster or slower than he does for steel. :beer: DaveH |
| doubleboost:
No problem He made a con rod for a racing ic (glow plug ) engine on a big cnc machine out of titanium . Just to get some time in with the machine . It really was a work of art , i will try to get some pictures from him As well as feed and speed rates John |
| spuddevans:
--- Quote from: DaveH on June 12, 2011, 07:11:56 PM ---Tim, --- Quote from: spuddevans on June 12, 2011, 06:17:06 PM --- I have also used a carbide V-point for engraving using extremely shallow cuts, with a little bath of thin cutting oil. Tim --- End quote --- "extremely shallow cuts" - .001" slightly deeper or shallower. Any idea of the spindle speed for the engraving cutter. Thanks DaveH --- End quote --- I ran it at my mill's max (X2 with belt conversion) which I think is about 2500-3000rpm. DOC was 0.01mm-0.02mm for the engraving or I was breaking cutter tips (but I was using quite fragile and slender cutters). When I was actually milling (as opposed to engraving) I was using a 2mm end mill and ran it at about 2000rpm and 0.05mm DOC. When engraving I found that the titanium would leave a very slight raised burr around the edge of the engraved portion, but a few wipes over with some wet and dry 800grit on a flat surface would take care of that. :offtopic: This is what I did I broke a cutter after doing the "L", well actually several cutters, until I got the DOC's and feed's sorted. Tim |
| DaveH:
Tim, Thank you Tim, Looks a million times better than my feeble attemps. Mmmmm I think my spindle speed 200 - 1000rmp was too slow used the same DOC. For some reason I had it fixed in my head not to go above 1000rmp. :doh: I think I'm going to give my brain cells a jolly good talking too :lol: :lol: :lol: Thanks :beer: DaveH |
| spuddevans:
I forgot to say that the engraving on that ring took about 5-6 passes at 0.01-0.02mm DOC's. Tim |
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