1. What are machining conditions?
Machining situation is changed by voltage, current, duration, etc. of the spark. Machining speed, size of craters, etc can change by varying "machining conditions".
<Main elements of machining conditions>
- ● τon (tau on)
- This is also called "pulse width". It means duration of the spark.
It is shown by unit of μSec (microseconds: 1 / million seconds) and is set in the range of around 0 ~ 1000 μSec. - ● τoff (tau off)
- It is also called "downtime". EDM discharges intermittent sparks. It means the downtime after each sparking.
It is set in the range of around 0 ~ 1000 μSec. - ● Open voltage
- It means the voltage applied between the electrode and the workpiece.
It is shown in unit of V (volt), and is set in the range of around 50 ~ 300V. - ● Peak current value
- It means the electric current value of the spark.
It is shown in unit of A (Amp), and is set in the range of around 0 ~ 500A.
