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mMINING METALLURGY MATERIALS
m m
WWW.UNILEOBEN.AC.AT
Universitätslehrerverband der
Montanuniversität Leoben (ULV)
The Effect of Machining on the Surface Integrity
The goal of this work is to identify a relationship between residual stresses, turning
process parameters and fatigue behavior of components.
The residual stress variation as a function of depth following
machining at different feeds and nose radii of the
tool was determined by a strain-gauge technique involving
blind-hole drilling. The results show that an increase
the feed rate tends to increase the compressive residual
stresses and an increase in the nose radius leads to a
decrease in compressive residual stresses.
This study is supported by the Austrian Aeronautics
Research and by the Pankl Racing Systems Group.
Ataollah Javidi
Lehrstuhl für Allgemeinen Maschinenbau
an der MUL seit: 2003
Zur Person:
1996 – 2003 Diplomstudium MUL
Seit 2003 Wissenschaftlicher Mitarbeiter
Lehrstuhl für AMB
The surface integrity produced by different machining
procedures can significantly affect fatigue performance.
Data are presented to show that the control of surface
integrity is extremely important toward improving the
reliability of highly stressed structural components. It is
therefore necessary to quantify surface integrity properties
as a function of machining conditions.
Forschungsschwerpunkte:
Entwicklungsmethodik(Bearbeitungsverfahren „Drehen“)
Untersuchung der Wirkungskette von
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Fertigungsverfahren
Randzoneneigenschaften
Bauteilermüdungsverhalten