Product Code: JLA_18_3_205

Authors:
L. Tunna
A. Khan
W. O’Neill
Institute for Manufacturing, University of Cambridge, Cambridge CB2 2RX, United Kingdom

C. J. Sutcliffe
Micromanufacturing Laboratory, University of Liverpool, Liverpool L69 3BX, United Kingdom

Diode pumped solid state lasers (DPSSs) with multiwavelength capability have become a powerful tool in laser material processing over the last few years. One application of high beam quality DPSS lasers that has received increased attention lately is the drilling of small diameter (<100 μm) holes through industrially important materials. Processing parameters play an important role and limit the precision of the process. A systematic series of experiments was performed to investigate the effect of the high fluence laser-drilling event in ambient air. From this study suitable processing regimes were established.