ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The analysis on load characteristics and stress state of bearing races shows that the roll pathand outside layer of a bearing race are the main part to bear the load, and that residual tensile stress isoften found on workpiece surface. For the purpose of improving residual stress state on machinedsurface of a bearing race, a method of pre-stress hard cutting is put forward. In this paper, the principleof pre-stress cutting is introduced, and method of loading stress on bearing races, together with thecalculation for pre-stress, is analyzed. A set of device with expanding mandrel for realizing theprocess is designed too and an experiment of pre-stress cutting is carried out on a lathe with PCBNtool. The experimental results show that, by using this method, we can get residual compressive stresson machined surface layer of a bearing race and increase the quality and contact fatigue life of bearing
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/51/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.315-316.526.pdf
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