Insert life, cycle time and machining cost by best programming method
As we all are aware that every line of CNC Turning part program will have functional instructions to machine elements, like spindle rotation, axes movement (linear or circular) and miscellaneous function like coolant on/off, door open/close, chuck open/close, tailstock forward/retract etc, here we will discuss on shaft or long contact time tuning components:
It is not just programming, but considering the tool contact time and wear we need to modify the program to avoid operator intervention, improved insert life, zero accidents and optimum cycle time.
Considering above graph we will take one example of long contact time component.
Regular programming method/cycle:
As the tool move towards spindle, depth of cut and feed rate can be increased keeping cutting speed constant. This will help us to reduce cycle time and number of cutting passes.
Dividing the total length in to number of steps, will help us to:
- Reduce insert contact time
- Easy chip evacuation
- Increased insert life
- Every subsequent STEP we can increase cutting parameter