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#1
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I am primarily a plastics machinist and I was wondering about running some stainless 304. I want to use constant surface speed so that I can get a good chip break. On a haas sl-20 will this work for constant surface speed of 650 sfm? G54 T101 G97 S500 M03 G99 G00 X3.1 Z.1 G96 S650 G50 S2595 G00 Z.01 G01 Z0. F.01 Z-.25 G00 U.01 Z4. I'm thinking I need the g97 to get the spindle turning, then I have the g96 s650 for the constant surface speed, and then the g50 s2595 so that the machine does not exceed the maximum of what my chuck is rated. |
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#2
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| I think it would be safer to put the G50 line before the G96 line. Once you call G96, it could be too late to benefit from the G50. Also, if you're only turning a single diameter, there's no benefit from using G96.
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#3
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| Mike is correct... G50 before calling G96. you dont need a G97, altho i know some people program a standard G97 S100 M3( or M4 ) at rhe start of the tool and do not invoke G96 until tool is at the work piece. I m/c S304 at 160 ( metric ) Surface Meters per Min. - turning/boring - slightly slower if using 0.4r tips and need really good finish. ST |
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