ken98k Posted March 28, 2007 Report Share Posted March 28, 2007 I'm getting set to do my first clip removal / bridge re-contour. Can anyone recommend what rpm I should use? My mill has 18 speeds from about 135 to 2300 rpm’s. I’ll be using a ½” carbide end mill. Thanks for the help. Kenny. Link to comment Share on other sites More sharing options...
donmarkey Posted March 28, 2007 Report Share Posted March 28, 2007 For a quick reference you can use the formula of Cutting speed (CS) X 4/Diameter of cutter (D). cs is around 125 with carbide and low carbon hardened alloy steel. 125X4/.5=1000RPM. Is the sleel is softer use 300 for a cut speed. Depending on the steel you can go up to 600cs, but if your chips are black or dark purple slow it down until they are amber. Feed rate depends on the # of flutes on the cutter. -Don Link to comment Share on other sites More sharing options...
z1r Posted March 29, 2007 Report Share Posted March 29, 2007 650 or 1000 is what I ran my little Clausing at with a 1/2" 4 flute carbide endmill. Link to comment Share on other sites More sharing options...
polinidad Posted March 29, 2007 Report Share Posted March 29, 2007 I used 1000 and a 4 flute end mill. Worked geat. Link to comment Share on other sites More sharing options...
ken98k Posted March 31, 2007 Author Report Share Posted March 31, 2007 Well that was fairly easy. I used a 900 something mill speed, worked great, thanks for all the input. The bridge was a little screwed-up to start with. The peak of the radius was off center and I was able to straighten that out somewhat. Turk quality control wasn't anywhere near the Germans. Link to comment Share on other sites More sharing options...
z1r Posted March 31, 2007 Report Share Posted March 31, 2007 Ken, You should be able to "straighten" it out absolutely. Link to comment Share on other sites More sharing options...
polinidad Posted March 31, 2007 Report Share Posted March 31, 2007 Ken, Looks good!! Link to comment Share on other sites More sharing options...
Doble Troble Posted April 1, 2007 Report Share Posted April 1, 2007 Beauty! Link to comment Share on other sites More sharing options...
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