Ultrafast Laser Micromachining - Fundamentals and Process Optimization
About the webinar: 15 September 2020, 19.00-20.30
Material processing using ultrafast laser pulses with pulse durations ranging from 300 fs to about 15 ps has gained considerable popularity in the last decade, mainly due to the low heat transfer to the surrounding material and the relatively high energy density during pulse penetration. The vast majority (more than 85%) of ultrafast industrial laser processing applications are currently based on laser ablation, e.g., cutting of imaging films and displays, medical stents, drilling of fuel injector nozzles, and surface microstructure formation. The remaining ultrafast applications use non-ablative processes, which include cutting with filler or auxiliary material, glass welding or polymerization.
This presentation presents the interactions of ultrafast pulses with materials in the infrared, green and ultraviolet wavelength bands as a function of pulse fluence and pulse duration. It also includes process optimization instructions for 25 different materials commonly used in industrial manufacturing. These instructions include optimal selection of pulse fluence, pulse duration, laser wavelength, and pulse timing sequence to maximize process speed and minimize the Thermal Impact Zone (TOZ). The presentation will conclude with an overview of industrial ultrafast laser applications.
REGISTER for the webinar HERE.
Original article on the Photonics website here.
