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. . r( V% `$ J d* V- dNOTE: CS=1000 ft/min for carbide insert used. 6 k' J: P: B$ F( m: l6 k$ q4 i2 ~* \5 a
so RPM(1)= ' n& u/ b% w P% A/ R RPM(2)=& {, Q$ t3 D" C
RPM(3)=' M8 R/ ]8 C7 _6 H% A# _( J6 ~
RPM(4)=0 `9 I8 o' N9 U5 x
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发表于 2007-11-23 22:20
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