Hendrik Liborius
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View article: Influence of the Tool Geometry on the Surface Properties in Ultrasonic Vibration Superimposed Machining of Bronze
Influence of the Tool Geometry on the Surface Properties in Ultrasonic Vibration Superimposed Machining of Bronze Open
Ultrasonic vibration superimposed turning represents a highly efficient method for surface microstructuring, which enables a combination with finish machining. However, there are almost no industrial applications of this process due to the…
View article: Scale influence in surface design regarding laser structures for adhesion enhancement in polymer-metal hybrids: A fractal dimension approach
Scale influence in surface design regarding laser structures for adhesion enhancement in polymer-metal hybrids: A fractal dimension approach Open
Surface structuring enhances adhesion, particularly at the interface of polymer-metal hybrids. Therefore, laser beam machining is well-established. However, the influence of scaling of such structures was not sufficiently determined yet. C…
View article: The combination of diamond smoothing and intermediate cooling during wire arc spraying of Ni-5w%Al on EN 1.0032 to improve the high-cycle fatigue behavior
The combination of diamond smoothing and intermediate cooling during wire arc spraying of Ni-5w%Al on EN 1.0032 to improve the high-cycle fatigue behavior Open
The aim of this study is to improve the fatigue limit of thermally sprayed EN 1.0032 steel substrates by combining turning, diamond smoothing, and temperature regulation during wire arc spraying of Ni-5wt%Al. In contrast to conventional sh…
View article: High-Speed Laser Metal Deposition of CrFeCoNi and AlCrFeCoNi HEA Coatings with Narrow Intermixing Zone and their Machining by Turning and Diamond Smoothing
High-Speed Laser Metal Deposition of CrFeCoNi and AlCrFeCoNi HEA Coatings with Narrow Intermixing Zone and their Machining by Turning and Diamond Smoothing Open
The processing of high-entropy alloys (HEAs) via laser metal deposition (LMD) is well known. However, it is still difficult to avoid chemical intermixing of the elements between the coating and the substrate. Therefore, the produced coatin…
View article: Enhanced Abrasion Resistance of Spark Plasma Sintered and HVOF Sprayed Hadfield High Manganese Steel by Turning and Diamond Smoothing
Enhanced Abrasion Resistance of Spark Plasma Sintered and HVOF Sprayed Hadfield High Manganese Steel by Turning and Diamond Smoothing Open
Austenitic high-manganese steels (HMnS) offer very high wear resistance under dynamic loading due to their high work hardening capacity. However, resistance to static abrasive loading is limited. Various approaches to increasing abrasion r…
View article: Surface hardening in finishing of sintered and thermal sprayed X120Mn12
Surface hardening in finishing of sintered and thermal sprayed X120Mn12 Open
Finishing of sprayed coatings is required for applications in tribological systems. The mostly hard and wear-resistant coatings cause increased tool wear in machining. Functional coating materials with hardening capacity during machining r…
View article: Influence of Cutting Speed in Turning and Force in Subsequent Diamond Smoothing on Magnetic Properties of Steel 100Cr6
Influence of Cutting Speed in Turning and Force in Subsequent Diamond Smoothing on Magnetic Properties of Steel 100Cr6 Open
Magnetic properties are known to be crucial in the application of electrical steel and they are therefore covered by manifold studies. Other ferromagnetic materials are out of scope in this respect, even if the importance of magnetism of c…
View article: Influence of Thermochemical Treatment on the Surface Properties of Finish Turned Wire Arc Sprayed 17Cr Steel Coatings
Influence of Thermochemical Treatment on the Surface Properties of Finish Turned Wire Arc Sprayed 17Cr Steel Coatings Open
Structural features of thermal spray coatings, e.g., porosity, can be beneficial as oil retention volumes in tribological systems in order to improve emergency running properties. While thermal spray coatings can already have a considerabl…
View article: Influence of the cutting material on tool wear, surface roughness, and force components for different cutting speeds in face turning of CoCrFeNi high-entropy alloys
Influence of the cutting material on tool wear, surface roughness, and force components for different cutting speeds in face turning of CoCrFeNi high-entropy alloys Open
High-entropy alloys (HEAs) provide advanced properties like a high resistance to corrosion and wear. Concerning this and the elevated material costs wear protection layers are a possible field of application. Finish machining of these laye…
View article: Measurement system based on the Seebeck effect for the determination of temperature and tool wear during turning of aluminum alloys
Measurement system based on the Seebeck effect for the determination of temperature and tool wear during turning of aluminum alloys Open
Process-driven changes of the workpiece surface layer are difficult to identify during machining. Therefore, a measurement system has been developed that uses a tool-workpiece thermocouple to determine the temperature and the tool wear, bo…
View article: Influence of the cutting parameters on the surface properties in turning of a thermally sprayed AlCoCrFeNiTi coating
Influence of the cutting parameters on the surface properties in turning of a thermally sprayed AlCoCrFeNiTi coating Open
High-entropy alloys (HEAs) represent a comparably novel class of materials composed of approximately equimolar fractions of at least four chemical elements. Applied by thermal spraying, the material can be used as a wear protection layer. …
View article: Method for process monitoring of surface layer changes in turning of aluminium alloys using tools with a flank face chamfer
Method for process monitoring of surface layer changes in turning of aluminium alloys using tools with a flank face chamfer Open
Lightweight materials can contribute significantly to an enhancement of energy and resource efficiency. In this context, the properties of the surface layer (e.g. residual stresses) influence the performance of machined parts considerably.…
View article: SURFACE INTEGRITY IN TURNING OF FE17CR2NI0.2C IRON BASED THERMALLY SPRAYED COATINGS WITH SPECIAL RESPECT TO THE INFLUENCE OF THE FEED
SURFACE INTEGRITY IN TURNING OF FE17CR2NI0.2C IRON BASED THERMALLY SPRAYED COATINGS WITH SPECIAL RESPECT TO THE INFLUENCE OF THE FEED Open
Cylinder linings of lightweight combustion engine blocks made from aluminium cast alloys are typically coated with thermally sprayed layers to enhance the chemical resistance.Finish machining of the cylinder linings is currently done by ho…
View article: Influence of dovetail microstructures on adhesive tensile strength and morphology of thermally sprayed metal coatings
Influence of dovetail microstructures on adhesive tensile strength and morphology of thermally sprayed metal coatings Open
An approach for a reduction of weight and fuel consumption of passenger cars consists in a replacement of grey cast iron by aluminium alloys as base material of combustion engine blocks. Regarding the insufficient chemical resistance of th…