A5039347441- Advanced Sensor Technologies Research
- Advanced Surface Polishing Techniques
- Adhesion, Friction, and Surface Interactions
- Advanced Measurement and Metrology Techniques
- Advanced machining processes and optimization
- Sensor Technology and Measurement Systems
- Laser Material Processing Techniques
- Electronic Packaging and Soldering Technologies
- Scientific Measurement and Uncertainty Evaluation
- Mechatronics Education and Applications
- Manufacturing Process and Optimization
- Fault Detection and Control Systems
- Advanced materials and composites
- Gear and Bearing Dynamics Analysis
- 3D IC and TSV technologies
- Advanced Machining and Optimization Techniques
- Flexible and Reconfigurable Manufacturing Systems
- Welding Techniques and Residual Stresses
- Nanofabrication and Lithography Techniques
- Mineral Processing and Grinding
- Advanced Measurement and Detection Methods
- Lubricants and Their Additives
- Advanced Welding Techniques Analysis
- Aluminum Alloys Composites Properties
Leibniz University Hannover
2020-2024
New sensor and manufacturing technologies are identified as a key factor for successful digitalisation therefore economically important manufacturers industry. To address various requirements, new sputter coating system has been invented at the Institute of Micro Production Technology. It enables deposition systems directly onto technical surfaces. Compared to commercially available systems, it no spatial limitations concerning maximum coatable component size. Moreover, simultaneous...
The world's electrical energy demand is rising permanently and, at the same time, resources must be used economically and responsibly.An important part of turnaround are wind mills, where conventional machine elements such as gears or rolling bearings find application.These parts have optimization potential in terms service life reliability.To advance this potential, sensor integration for intelligent system monitoring combined with a compact electronic solution has to realized.In contrast...
This paper shows, that in comparison to conventional polymer foil-based metal strain gauges, sputtered thin-film gauges enable new measurement positions harsh environments because of their reduced thickness, fulfilling the modern needs special industry applications such as drilling bottom hole assemblies. It requires possibility sputter directly on components any size. is achieved by a novel patented coating system, invented at IMPT. Due direct deposition, there potential for optimized...
In the context of intelligent components in industrial applications automotive, energy or construction sector, sensor monitoring is crucial for security issues and to avoid long costly downtimes. This article discusses component-inherent thin-film sensors this purpose, which, contrast conventional technology, can be applied inseparably onto component’s surface via sputtering, so that a maximum information about condition generated, especially regarding deformation. examines whether continue...
Current limitations of silver sintering are long processing times and high temperatures. To overcome these restrictions, different tin contents added to the paste. Various preheating evaluated at a temperature 235°C. The positive effect micro scale particles on shear strength porosity reduced process parameters is demonstrated. addition enables reduction both time while maintaining strengths. At 60 s no time, 27.5 at% paste leads an increase in 417 % from 4.6 MPa 19.2 MPa, compared without...
Abstract Background Commonly, polymer foil-based strain gauges are used for the incremental hole drilling method to obtain residual stress depth profiles. These prone errors due application by glue. For example zero setting is thus often erroneous necessary removal of foil and This resulting in wrong use calibration coefficients resolution leading calculations obtained Additionally common sensors limited their regarding e.g. exposure high temperatures. Objective paper aims at a first step...
Abstract Precision machining is becoming more and important with the increasing demands on surface quality for various components. This applies, example, to mirror components in micro-optics or cooling microelectronics. Copper a frequently used material this purpose, but its mechanical properties make it difficult machine. In study, process strategy finishing copper surfaces batch-manufactured micro-grinding tools an electrochemically assisted grinding demonstrated. The tool heads are...
This paper shows the possibility of direct deposition strain gauge sensors on curved metallic surfaces arbitrary size. A novel, patented sputtering system from IMPT guarantees manufacturing directly onto surface any component. By this, need undesirable polymer foil and adhesive vanishes, which are both necessary for conventional sensors. Thin-film metal gauges thereby enable new measurement positions in harsh environments due to their minimal total thickness under 5 µm, example industrial...
Silver sintering is a very important state-of-the-art joining process in the production of high-performance electronic components, as conventional assembly and connection technology reaching its limits, especially due to increasing requirements e-mobility. particularly suitable for today's components such IGBTs or diodes. However, silver compound not yet widely used. This high pressures, temperatures, long times fluctuations strength joint. work shows potential preliminary results on...
The sensory equipment of components large production machines plays a major role for quality monitoring. In portal milling machines, conventional foil-based strain gauges can be applied manually on guide carriages in order to measure the process forces and torques all directions. Here, an improvement regarding accuracy, positioning automatability concerning sensor application is aimed by directly deposited thin-film sensors. Therefore, this article shows evaluates method trimming sputtered...