Evaluation of residual stresses during mechanical treatment of machine parts

Keywords

residual stresses, plastic deformation, stress, Bauschinger effect, the direction of the vector cutting velocity.

Cite as

Shakhbazov Ya. O., Shyrokov V. V., Cheterbukh O. Yu., Griner I. M., Vasyliv Kh. B., and Melnykov O. V. Evaluation of residual stresses during mechanical treatment of machine parts. Physicochemical Mechanics of Materials. 2022. 58(5), 122-127.

Abstract

The technological possibilities of residual stresses control during mechanical treatment by correcting the distorted structure of the machined surface of machine parts by changing the direction of the cutting speed vector under rough and finish operations are considered. The possibility of using the Bauschinger effect in the process of cutting metals in order to influence the magnitude and sign of the residual stresses of the first kind by checking the technological conditions of processing is shown. Using the example of steel 45, it is established that mechanical processing of parts according to the proposed hypothesis allows us not only to improve the quality of the metal surface layer, but also to increase the service life of friction pairs by 25–50%.

References

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