As we all know, the burr will influence the product quality and looks not so beautiful, so today I’ll share you how we to decrease the burr when drilling.
- First, the drilling bit must be new.
Usually, the drilling bit can be used for drilling 3000-5000 holes.
To avoid burr, we will change new drilling bit after drilling 2000 holes.
- The drilling speed must be suitable.
Normally, the drilling speed is around 20W/drilling. The speed shouldn’t be too fast or too slow. If too fast, it might cause holes burning.
The best drilling speed is 16W/drilling.
(Rigid PCB have no requirement).
- Pile up the boards shouldn’t be too much.
Flex boards pile up shouldn’t exceed 8PCS.
And it will be better to put some clear paper between each two boards.
(Rigid PCB have no requirement.)
If you want to know more about other process, please let us know, we will share with you by email.