Advanced welding strategies using short-pulse lasers: Integrating speedLAS®️ CAM processing interface (CPI) for medical implants and devices
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School of Engineering |
Master's thesis
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en
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84
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Abstract
The medical industry has excelled in the recent years due to the demands and advancements in the realm of medical implants and devices. Implantable medical devices have gaining commercial importance due to excellent strength and biocompatible properties, in which laser welding, specifically short-pulse laser welding, is emerging to be an process of immense importance. Due to the invasive nature of implants, very high standards for medical implants are set, which demand very high process and product quality requirements from implant manufacturers. The focus of this research is to investigate the processing strategy for medical implants using shortpulse laser welding. This research aims to make use of speedLAS® CAM Processing Interface (CPI)1 to implement G-code script interfacing for combined scanner and machine axes control for 5-axis laser machines. Processing strategy for Titanium and Stainless Steel will be carried out by studying the effects of laser frequency, laser power and feed rate through experimentation. The specimens obtained using optimized parameters shall be studied with Laser Microscope (LM) and Energy Dispersive X-Ray (EDX) Microscope to understand and characterise the composition and microstructure of the weld specimen in order to understand the effects of laser parameters on Titanium and Stainless Steel welding.Description
Supervisor
Bossuyt, SvenThesis advisor
Bohrer, MarkusStampfl, Jürgen