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View article: Active Torque Control for Speed Ripple Elimination: A Mechanical Perspective
Active Torque Control for Speed Ripple Elimination: A Mechanical Perspective Open
Torque fluctuations in drivetrains are the result of dynamic excitations and can be unfavorable for the lifetime of the system. Passive ripple suppression methods exist, such as torsional dampers and flywheels, which are often bulky and no…
View article: Spatial distributed spectroscopic monitoring of melt pool and vapor plume during the laser metal deposition process
Spatial distributed spectroscopic monitoring of melt pool and vapor plume during the laser metal deposition process Open
Laser metal deposition is an additive manufacturing process that allows the production of near net shape structures. In order to obtain structures with reproducible and excellent material properties, it is necessary to understand the behav…
View article: Comparison of visual and hyperspectral monitoring of the melt pool during Laser Metal Deposition
Comparison of visual and hyperspectral monitoring of the melt pool during Laser Metal Deposition Open
In the field of additive manufacturing the implementation of real time process monitoring is required to enhance the quality and repeatability of the printed parts. Laser metal deposition (LMD) is a technique where the deposition of materi…
View article: Hyperspectral and thermal temperature estimation during laser cladding
Hyperspectral and thermal temperature estimation during laser cladding Open
Although there is no doubt about the tremendous industrial potential of metal additive manufacturing techniques such as laser metal deposition, the technology still has some intrinsic quality challenges to overcome before reaching its indu…
View article: Fatigue Performance of Ti-6Al-4V Additively Manufactured Specimens with Integrated Capillaries of an Embedded Structural Health Monitoring System
Fatigue Performance of Ti-6Al-4V Additively Manufactured Specimens with Integrated Capillaries of an Embedded Structural Health Monitoring System Open
Additive manufacturing (AM) of metals offers new possibilities for the production of complex structures. Up to now, investigations on the mechanical response of AM metallic parts show a significant spread and unexpected failures cannot be …
View article: Proof of Concept of Integrated Load Measurement in 3D Printed Structures
Proof of Concept of Integrated Load Measurement in 3D Printed Structures Open
Currently, research on structural health monitoring systems is focused on direct integration of the system into a component or structure. The latter results in a so-called smart structure. One example of a smart structure is a component wi…
View article: High Resolution Temperature Measurement of Liquid Stainless Steel Using Hyperspectral Imaging
High Resolution Temperature Measurement of Liquid Stainless Steel Using Hyperspectral Imaging Open
A contactless temperature measurement system is presented based on a hyperspectral line camera that captures the spectra in the visible and near infrared (VNIR) region of a large set of closely spaced points. The measured spectra are used …
View article: High Resolution Temperature Estimation During Laser Cladding of Stainless Steel
High Resolution Temperature Estimation During Laser Cladding of Stainless Steel Open
Laser cladding is a technique that is used for the coating, repair and production of metallic parts. Material is added to the surface of the part by injecting a flow of powder into a melt pool that is created with a high power laser beam. …
View article: Modeling of laser beam and powder flow interaction in laser cladding using ray-tracing
Modeling of laser beam and powder flow interaction in laser cladding using ray-tracing Open
Laser cladding, also known as direct metal deposition, is an additive manufacturing technique for the production of freeform metallic parts. In the laser cladding process, a high-power laser beam is directed onto the surface of a solid met…