Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Thomas TOBIE"'
Publikováno v:
Applied Sciences, Vol 13, Iss 3, p 1546 (2023)
Due to their cost-effectiveness, pulsator tests are widely adopted as a testing methodology for the investigation of the effects of material and heat and surface treatment on the gear strength with respect to tooth root fatigue fracture. However, sin
Externí odkaz:
https://doaj.org/article/a1be0fb6f3654aac8c5ba72300cf3548
Autor:
Stefanie Hoja, Michael Geitner, Bernd Zornek, Franz Hoffmann, Thomas Tobie, Karsten Stahl, Rainer Fechte-Heinen
Publikováno v:
Lubricants, Vol 10, Iss 5, p 88 (2022)
Nitriding can significantly increase the load carrying properties of gears. While the diffusion layer is primarily responsible for improving the tooth root and flank load carrying capacity, the compound layer mainly determines the tribological proper
Externí odkaz:
https://doaj.org/article/09600080f15d4cf291b5fbf341d3347e
Autor:
Matthias Schmitt, Albin Gottwalt, Jakob Winkler, Thomas Tobie, Georg Schlick, Karsten Stahl, Ulrich Tetzlaff, Johannes Schilp, Gunther Reinhart
Publikováno v:
Metals, Vol 11, Iss 6, p 896 (2021)
The carbon content of steel affects many of its essential properties, e.g., hardness and mechanical strength. In the powder bed fusion process of metals using a laser beam (PBF-LB/M), usually, pre-alloyed metal powder is solidified layer-by-layer usi
Externí odkaz:
https://doaj.org/article/9fe4d44aa0b04414b1623a5724b20e06
Autor:
Nadine Sagraloff, Karl Jakob Winkler, Thomas Tobie, Karsten Stahl, Christopher Folland, Tobias Asam
Publikováno v:
Lubricants, Vol 9, Iss 3, p 24 (2021)
In most gear drive applications mineral or synthetic oils are used as lubricants, which are made of fossil raw materials and are non-biodegradable. In applications located in critical environmental areas such as boats or harbors, eco-friendly lubrica
Externí odkaz:
https://doaj.org/article/3e9062aaaa164171a5a1864dadffd020
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 12, Iss 1, Pp JAMDSM0016-JAMDSM0016 (2018)
Bending strength of injection molded polyacetal test gears is investigated in back-to-back testing using oil-lubrication. To validate state of the art calculation methods, tooth geometries with a variable number of teeth are investigated, maintaining
Externí odkaz:
https://doaj.org/article/09e130f4a1ec4ff79c1aaf3ce3cfb7df
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 11, Iss 6, Pp JAMDSM0074-JAMDSM0074 (2017)
Due to better material qualities, new surface finishing methods and better heat-treatment process reliability, flank surface damages, such as pitting or micropitting, can be prevented in a reliable manner. This results in an increase of unexpected fl
Externí odkaz:
https://doaj.org/article/5ac82f1539f04ad9a52746a8aa40e2df
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 11, Iss 6, Pp JAMDSM0075-JAMDSM0075 (2017)
The grinding of case-hardened gears after the heat treatment ensures a high quality regarding the gear geometry and tooth surface topography. If the limits of the gear material are exceeded during this process, the mechanical and thermal influence fr
Externí odkaz:
https://doaj.org/article/022dcaf73cea493db5dd4116018bf9b9
Publikováno v:
Lubricants, Vol 7, Iss 4, p 33 (2019)
The aim of the current research is to develop a gear transmission fluid based on water and plant extract. Up to now, mineral or synthetic oils are used as lubricants in most gear drive applications. These oils are made of fossil raw materials and are
Externí odkaz:
https://doaj.org/article/317581de90fe4cda96892664b5ff901d
Publikováno v:
Metals, Vol 7, Iss 10, p 415 (2017)
Both the tooth root and tooth flank load carrying capacity are characteristic parameters that decisively influence gear size, as well as gearbox design. The principal requirements towards all modern gearboxes are to comply with the steadily-increasin
Externí odkaz:
https://doaj.org/article/a8c426bdd9d54b138ff12cd0568bec4d
Publikováno v:
Tribologie und Schmierungstechnik. 70:24-31
In large gear drives, through-hardened ring gears or internal gears are often in contact with case-hardened pinions. This offers economic advantages, but involves an increased risk of wear during its operation. Various test methods exist to evaluate