CNC Turning insert shapes and their cutting properties
When we select an insert for an operation, we select it based on these characteristics:
– How versatile it is in cutting different part contours
– Spindle power required to cut
– Vibrations during cutting, which are a result of the extent and direction of cutting forces
– Strength of the insert and its ability to take heavy cuts
This picture shows how the characteristics change with the turning insert shapes.
The arrow next to each property indicates the direction in which it increases. Here’s how you interpret the picture:
– Vibration during cutting: This is lowest for V shape, highest for R.
– Ability to turn complex contours: R is the least versatile, V is the most.
– Spindle power requirement: For a given set of cutting parameters, V requires the lowest spindle power, R requires the highest.
– Strength of insert: V has the lowest strength, R is the strongest.
– Ability to take heavy cuts: V has the least ability to take heavy cuts, while R has the highest.
Action point
Please consider these characteristics when selecting an insert for an operation. It takes very little time, but can make a big difference to cycle time and profitability.
