Fatigue strength of inner knurled interference fit joined by forming and cutting methods
The joining of machine parts by plastic forming is a common method for transmitting forces and torque. In drive trains, the ‘knurled interference fit’ has a high transmission capacity through the combination of frictional connection and form fit. In the present study, the shaft specimen made of C45...
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2019-06-01
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doaj-5775ab2824134c29bed5ff340ae79f052021-01-27T17:13:43ZengGruppo Italiano FratturaFrattura ed Integrità Strutturale1971-89932019-06-011349Fatigue strength of inner knurled interference fit joined by forming and cutting methodsLukas Suchy0E. Leidich1A. Hasse2T. Gerstmann3B. Awiszus4TU ChemnitzChemnitz University of Technology, Institute of Design Engineering and Drive Technology, GermanyChemnitz University of Technology, Institute of Design Engineering and Drive Technology, GermanyChemnitz University of Technology, Institute for Machine Tools and Production Processes, GermanyChemnitz University of Technology, Institute for Machine Tools and Production Processes, Germany The joining of machine parts by plastic forming is a common method for transmitting forces and torque. In drive trains, the ‘knurled interference fit’ has a high transmission capacity through the combination of frictional connection and form fit. In the present study, the shaft specimen made of C45 steel material is joined with an inner knurled hub made of 16MnCr5 case hardened steel. The influence of the joining process parameters on the torsional fatigue strength of the shaft-hub connection is investigated by means of experimental studies. The most important parameter is the chamfer angle of the knurled hub, which determines the rate of strain hardening in the material and differs between the cutting and forming joining processes. This study shows that knurled interference fit connections joined by forming achieve a higher fatigue strength and a higher maximum static torque than connections joined by cutting. https://www.fracturae.com/index.php/fis/article/view/2309Inversed knurled interference fitNotch fatigueJoining by plastic formingHigh-cycle fatigue testingTorque transmission |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lukas Suchy E. Leidich A. Hasse T. Gerstmann B. Awiszus |
spellingShingle |
Lukas Suchy E. Leidich A. Hasse T. Gerstmann B. Awiszus Fatigue strength of inner knurled interference fit joined by forming and cutting methods Frattura ed Integrità Strutturale Inversed knurled interference fit Notch fatigue Joining by plastic forming High-cycle fatigue testing Torque transmission |
author_facet |
Lukas Suchy E. Leidich A. Hasse T. Gerstmann B. Awiszus |
author_sort |
Lukas Suchy |
title |
Fatigue strength of inner knurled interference fit joined by forming and cutting methods |
title_short |
Fatigue strength of inner knurled interference fit joined by forming and cutting methods |
title_full |
Fatigue strength of inner knurled interference fit joined by forming and cutting methods |
title_fullStr |
Fatigue strength of inner knurled interference fit joined by forming and cutting methods |
title_full_unstemmed |
Fatigue strength of inner knurled interference fit joined by forming and cutting methods |
title_sort |
fatigue strength of inner knurled interference fit joined by forming and cutting methods |
publisher |
Gruppo Italiano Frattura |
series |
Frattura ed Integrità Strutturale |
issn |
1971-8993 |
publishDate |
2019-06-01 |
description |
The joining of machine parts by plastic forming is a common method for transmitting forces and torque. In drive trains, the ‘knurled interference fit’ has a high transmission capacity through the combination of frictional connection and form fit. In the present study, the shaft specimen made of C45 steel material is joined with an inner knurled hub made of 16MnCr5 case hardened steel. The influence of the joining process parameters on the torsional fatigue strength of the shaft-hub connection is investigated by means of experimental studies. The most important parameter is the chamfer angle of the knurled hub, which determines the rate of strain hardening in the material and differs between the cutting and forming joining processes. This study shows that knurled interference fit connections joined by forming achieve a higher fatigue strength and a higher maximum static torque than connections joined by cutting.
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topic |
Inversed knurled interference fit Notch fatigue Joining by plastic forming High-cycle fatigue testing Torque transmission |
url |
https://www.fracturae.com/index.php/fis/article/view/2309 |
work_keys_str_mv |
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