TEA – Tool Engagement Angle

The RDOC and TEA have a direct trigonometric relationship to one another.*


-More cutting work per tool rotation, requiring slower surface speed!
-Difficulty with chip evacuation may require lighter ADOC and/or fewer flutes
-Fewer re-positioning moves, resulting in shorter cycle time


-Less cutting work per tool rotation, allowing faster surface speed
-Better chip evacuation, allowing increased ADOC and/or more flutes
-More re-positioning moves, resulting in longer cycle time

*As stated above, there is a direct trigonometric relationship between the radial depth of cut and the tool engagement angle. Also important to understand is how TEA/ROOC affects “chip thinning”.


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