Fatigue strength of inner knurled interference fit joined by forming and cutting methods

Fatigue strength of inner knurled interference fit joined by forming and cutting methods

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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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Main Authors: Lukas Suchy, E. Leidich, A. Hasse, T. Gerstmann, B. Awiszus
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2019-06-01
Series:Frattura ed Integrità Strutturale
Subjects:
Inversed knurled interference fit
Notch fatigue
Joining by plastic forming
High-cycle fatigue testing
Torque transmission
Online Access:https://www.fracturae.com/index.php/fis/article/view/2309
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spelling 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.
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
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AT ahasse fatiguestrengthofinnerknurledinterferencefitjoinedbyformingandcuttingmethods
AT tgerstmann fatiguestrengthofinnerknurledinterferencefitjoinedbyformingandcuttingmethods
AT bawiszus fatiguestrengthofinnerknurledinterferencefitjoinedbyformingandcuttingmethods
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