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View article: Life Cycle Assessment of Combined Additive and Subtractive Process Chains
Life Cycle Assessment of Combined Additive and Subtractive Process Chains Open
In this paper, the potential of a combined technology chain involving Wire Arc Additive Manufacturing (WAAM) and a subtractive milling process was analyzed in comparison to a conventional process chain, using a Cradle-to-Gate Life Cycle An…
View article: Spectral Visualization of Alloy Reactions during Laser Melting
Spectral Visualization of Alloy Reactions during Laser Melting Open
Laser materials processing includes rapid heating to possibly high temperatures and rapid cooling of the illuminated materials. The material reactions can show significant deviations from equilibrium processing. During processing of comple…
View article: Laser Cladding With Combined NIR and Blue Diode Laser Including In-Line Atomic Emission Spectroscopy
Laser Cladding With Combined NIR and Blue Diode Laser Including In-Line Atomic Emission Spectroscopy Open
For Directed Energy Deposition processes (DED) lasers in the near infrared (NIR) as well as in the infrared (IR) range are predominantly used. Recent developments have also made high-power lasers in the visible spectrum available. As the D…
View article: Investigation of Direct Metal Deposition Processes Using High-Resolution In-line Atomic Emission Spectroscopy
Investigation of Direct Metal Deposition Processes Using High-Resolution In-line Atomic Emission Spectroscopy Open
Process monitoring and control methods during direct metal deposition (DMD) ensure consistent manufacturing quality of the product. Naturally occurring optical process emissions provide selective and specific element lines, which can be in…
View article: In-Line Observation of Laser Cladding Processes via Atomic Emission Spectroscopy
In-Line Observation of Laser Cladding Processes via Atomic Emission Spectroscopy Open
Direct metal deposition (DMD) can be used for the cladding of surfaces as well as repairing and additive manufacturing of parts and features. Process monitoring and control methods ensure a consistent quality during manufacturing. Monitori…
View article: Prediction of Preheating Temperatures for S690QL High Strength Steel Using FEM-Simulation for High Power Laser Welding
Prediction of Preheating Temperatures for S690QL High Strength Steel Using FEM-Simulation for High Power Laser Welding Open
This study investigates a method for predicting the effect of preheating temperatures on the resulting hardness for high power laser welding of high strength steel. An FEM model is introduced containing a hardness calculation based on an e…