Research

FKM 1995 Project No. 160 Abstract: Circumferential bending tests were carried out on the quenched and tempered and nitrided condition of steel 31 CrMoV 9 (1.8519) on three specimen diameters, two shape numbers and five surface layer variants with comparable base material properties and statistically verified Wöhler curves were determined. The Wöhler curve parameters are...

FKM 1995 Booklet No. 198 Project No. 173 Final Report Abstract: The aim of the research project is to develop design guidelines that enable the targeted design of thermoplastic flanges with regard to their behavior under external loads, especially at elevated temperatures. In a first step, geometric design parameters of existing plastic flanges were determined and a model...

FKM 1995 Booklet No. 199 Project No. 157 Abstract: To determine the applicability of HT thermoplastics for dry-running plain bearings, the friction and wear behavior was tested both on simple test specimens and on cylindrical bearing bushes. Modified HT thermoplastics are suitable for increasing the application limits of these bearings due to their high temperature...

FKM 1997 Issue No. 200 Project No. 143 report Abstract: In centrifugal pump and blower construction, adjustable guide vanes are primarily used to control specific high-speed turbomachinery, and occasionally in compressor construction. This effective but expensive type of control is contrasted with the considerably more economical control by guide vane adjustment in terms of...

FKM 1995 Issue No. 201 Project No. 129 Abstract: For reasons of fire and environmental protection, hydraulic fluids containing water are being used in more and more areas of technology. The aim of the research project was to select suitable bearing steels and surface protection processes in order to achieve a sufficient service life for bearings in aqueous fluids. Due to...

FKM 1995 Booklet No. 202 Project No. 161 Abstract: Detailed FE calculations have shown that composite materials are particularly suitable for the construction of compressor blades and are capable of drastically reducing their weight. The described connection with the wedge base can transmit large forces in a small space and is therefore particularly suitable for substitution...

FKM 1995 Issue No. 203 Project No. 165 Final report Abstract: Shaft sealing rings with PTFE sealing lips (PTFE sleeve sealing rings) are becoming increasingly important due to their high chemical and thermal resistance. In this study, both commercially available sealing rings and sealing lips manufactured at the institute were investigated experimentally. The investigations...

FKM 1996 204-2 Project No. 184 Development of a system for automatic drawing recognition Abstract: In mechanical engineering, there is a large number of conventionally created drawings whose conversion to CAD systems is a prerequisite for the future standardized management and use of engineering data in industry. Such electronic archiving is desirable with regard to...

FKM 1995 Booklet No. 205 Project No. 172 Booklet No. 205 Project No. 172 Final Report Abstract: In a market characterized by cut-throat competition, it is crucial to differentiate oneself from the competition in terms of price, quality and delivery time. One strategic way to do this is to concentrate on the core business through make-or-buy decisions. The aim of the project...

FKM 1995 Booklet No. 206 Project No. 170 Abstract: Information on machines and systems is required in almost every area of a company. Nevertheless, machine data is either laboriously maintained by hand or stored in function-specific subsets in IT systems. In addition to redundancy, consistency and updating problems, this results in increased effort when evaluating the data,...

FKM 1995 Booklet No. 207 Project No. 153 Abstract: As part of the research project, systematic investigations were carried out into the dimensional stability of conical compression bracing with the aim of determining notch effect numbers, taking into account important influencing variables. Tapered interference fits with a taper ratio of 1:30 were investigated under...

FKM 1995 Booklet No. 208 Project No. 158 Abstract: Despite clear advantages, especially under the stress of high operating temperatures, there is no unanimous picture in favor of the high-temperature thermoplastic Victrex 450G. The user is therefore given conditions under which the use of this material makes sense. At the same time, the user is made aware of the limitations...