MATEC Web Conf.
Volume 297, 2019X International Scientific and Practical Conference “Innovations in Mechanical Engineering” (ISPCIME-2019)
|Number of page(s)||7|
|Section||The Strengthening Technologies and Functional Coverings|
|Published online||13 November 2019|
The Metal Surface Layer Mechanical Condition Transformation in Machining Processes
T.F. Gorbachev Kuzbass State Technical University, Mechanical engineering Technology Department, 650000 Kemerovo, 28 Vesennya st., the Russian Federation
The metal surface layer mechanical condition transformation at the product life cycle stages key provisions are presented. The described approach feature is the hardened body effect consideration: the metal mechanical properties changing during it displacement through the deformation zone space. On the basis of the developed for surface plastic deformation process hardened elastic-plastic body model, the cumulative shear strain level, plasticity reserve exhaustion level and residual stress tensor components calculations are performed. It is established that the greatest residual compressive stresses are characteristic for the axial component, and the extremum can be located both on the workpiece surface and at some distance from it. The metal hardening influence on the residual stresses distribution is revealed. On the axial (largest) component example shown that the difference between the maximum values is almost 30%. The obtained result corresponds to the idea that the hardened metal having an increased yield strength allows a larger residual stresses presence.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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