Process Date: May 1999

Placing a number of holes to be identified by vision systems is an excellent and simple means of tracking/identifying fast moving sheets. In this application, hole sizes between 0.004 and 0.05 were produced in a number of thin fabrics, using less than 25 watts of power. The laser was externally gated to provide the desired hole size and spacing for different line speeds.

The photo to the left shows the "YN" of Synrad. The acceleration/deceleration of the moving table is evident in the variable spacing of the dots.

 
0.025" diameter holes made with 15W at 1200ipm