Open AccessTechnology of residual stresses removal at multi-cycle racers running-in
Author(s) -
A. F. Balaev,
Andrey Balaev,
А. В. Королев,
А. В. Королев,
Александр Яковишин,
A. S. Yakovishin
Publication year - 2017
Publication title -
naukoëmkie tehnologii v mašinostroenii
Language(s) - English
Resource type - Journals
ISSN - 2223-4608
DOI - 10.12737/24208
Subject(s) - residual stress , residual , computation , running time , simulation , dual (grammatical number) , stress (linguistics) , structural engineering , computer science , mechanics , mechanical engineering , engineering , materials science , algorithm , composite material , physics , art , linguistics , philosophy , literature
The substantiation of the new technology of multi-cycle racer running-in is shown. A technological method for racer resi-dual stresses removal by means of multi-cycle centerless running-in is described. For the computation of running-in basic time which is necessary for the complete removal of residual stresses there is developed a simulator. A simulator takes into account geometrical and mechanical conditions of the contact of rollers and a racer, physical-mechanical and geometrical parameters of a racer. On the basis of the simulator obtained there is carried out an investigation of the dependence of residual stress upon the duration of racer multi-cycle running-in for various stressed states. It is established that for the efficient stress removal the running-in time must be optimum. If time is lesser than optimum, then there is no a complete removal of residual stresses.
At processing time longer of optimum one after a complete removal of residual stresses the accumulation of new residual stresses takes place.