The G84 canned cycle is primarily used for tapping threads inside drilled holes. Unlike drilling cycles such as G81, G82, and G83, tapping requires precise synchronization between the spindle and feed with the thread pitch. Therefore, the G84 cycle automatically controls both spindle rotation and feed, so that the tap cuts correctly and, as a result, reduces the risk of tool breakage. In addition, this automation makes the tapping process faster and more reliable compared to manual programming
Tag Archives: tapping cycle
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When programming a Vertical Machining Center (VMC), certain operations like drilling, boring, tapping, and reaming are repetitive. Writing full toolpath codes (G01, G00, G02, G03) for each step would be time-consuming.
To simplify this, Fanuc controls (and most CNC controls) use Canned Cycles – pre-programmed subroutines that perform common machining operations with just one command line.