A 6.5 inch dia shaft is to be machined on a TURNING CTR to 4.5 inch dia in 4 equal cuts. If CONSTANT CS is selected calculate the RPM at the beginning of each cut. ! H$ i- N* y' P9 }- _" s; KNOTE: CS=1000 ft/min for carbide insert used. 8 \. p. w; p7 [) j- g9 ^$ x: i
so RPM(1)= / q; b+ W* N; {; r' ]
RPM(2)=$ d/ R$ o+ f, |; p
RPM(3)=; f. z- y# U, V- }
RPM(4)=' n+ O/ M9 F1 J- @5 m
' t* q9 i( a* y
谢谢指教。
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发表于 2007-11-23 22:20
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