FABTECH 2023

F75: Laser Micro Processing (Room S502B)

*This conference session requires registration and payment.

Challenges in Laser Micro-Welding Process Monitoring
Weld process monitors are more sophisticated than ever, capturing greater detail and lending greater insight into the welding process. As applications get smaller, signal detection and maintenance of the signal level in production environments becomes increasingly difficult. Additionally, this high-resolution data capture results in copious amounts of data that need to be transferred and analyzed, creating a computing challenge. In this presentation, we will look at recent developments in laser weld monitoring - with a specific focus on micro-welding processes- and how they help manufacturers to overcome these obstacles and put welding firmly on the road to artificial intelligence and machine learning algorithms.
Mark L. Boyle - AMADA WELD TECH INC.

Corrosion Resistant Laser Marking Processes – Nanosecond Pulse Laser Annealing vs. Picosecond Pulse Laser Black Marking
Many industries require high contrast, corrosion resistant marking on a variety of metals for UDI purposes and human readable text. To achieve dark and corrosion resistant marks, an ultrashort pulse laser operating in either the picosecond or the femtosecond regime is often used. Ultrashort pulse lasers use a black marking process to achieve corrosion resistant marks. Due to the higher price range of ultrashort pulse lasers, it can be advantageous to use lower cost short pulse lasers in the nanosecond regime. For certain corrosion resistant marking applications, a short pulse laser can be used depending on the geometry and application requirements. This research will explore corrosion resistance annealing with a 25W nanosecond pulse laser. With this laser, it is possible to achieve very dark marks on a variety of metals with annealing. The nanosecond pulse laser will be benchmarked against a 20W ultrashort pulse laser operating in the picosecond regime.
Dylan M. Hancock - TRUMPF Inc.