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Old 09-15-2006, 04:29 PM
STS_John STS_John is offline
 
Join Date: Sep 2006
Location: USA
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First of many questions in learning curve

Our Daewoo 2500 LSY is our first production CNC lathe, So we are really green. Some of my questions are based on learning curve for the lathe, some will be lack of knowlwdge on tooling for cutting down cycle times. We have alot of work for the lathe, and would really like to get the most out of its' potential

We are currently making 4340 Q&A parts that have 8 6-32 holes tapped in them. Tapping cycle is running pretty fast. Tapping at 640 RPM. What is really killing the cycle time is the drilling. Using a #36 cobalt stub 135 degree split point drill. 2500 RPM, peck at .050 total depth .300, feed at 6 IPM. Haven't tried anything faster, mostly becuase we don't know any better.. Any suggestions on decreasing cycle time. All other operations are running pretty fast.

Thanks in advance
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