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