N.A. Zemlyanushnov
Engineer, Postgraduate Student at the Department of technical exploitation of automobiles, North-Caucasus Federal University
N.Y. Zemlyanushnova
Candidate of Technical Sciences, Associate Professor at the Department of technical exploitation of automobiles, North-Caucasus Federal University
THEORETICAL BACKGROUND OF THE TECHNOLOGY OF AUTOMOBILESPRINGS FROM HARDENED SPRING WIRE RECOVERING
The relevance of the investigated problem is caused by need of improvement and theoretical justification of technologies of springs recovering at the stage of their development.
The aim of the work is to present theoretical justification of technologies of springs recovering with the use of low-temperature thermo-mechanical hardening and contact predeformation and similarly with the use of low-temperature thermo-mechanical hardening, and contact predeformation. The variation in height of the operating part of the hardened spring with respect to elastic core of coil cross-section area is obtained. Compression of spring when it undergoes peen hardening have been theoretically specified. Theoretical research of strain-stress state of valve spring when it undergoes peen hardening subject to increase yield limit of material in hardened area has been done.
The results of the study are recommended to use during development of the recovering technique of expensive automobile springs.
Keywords: hardening of springs, recovery of springs, contact predeformation, peen hardening, power characteristics of springs.
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