Main Catalog Mechanical Engineering and Machine Science Technology and Equipment of Mechanical and Physical Processing

Reasons for the occurrence of residual stresses during machining of workpiece surfaces

Authors: Chudina A.A.
Published in issue: #12(53)/2020
DOI: 10.18698/2541-8009-2020-12-662
Category: Mechanical Engineering and Machine Science \| Chapter: Technology and Equipment of Mechanical and Physical Processing
Keywords: residual stresses, causes of occurrence, technological factors, machining, performance, temperature, cutting force, tool, workpiece, surface layer
Published: 21.12.2020

The paper considers basic information about residual stresses and a classification of residual stresses arising in the surface layer of parts. The main reasons for the occurrence of residual stresses are analyzed and the factors influencing them are established. It is concluded that the residual stresses on the part surface after machining with a blade tool can be caused by three main reasons: uneven plastic deformations in the cutting zone because of the force action of the tool on the workpiece, high temperatures accompanying the cutting process, and structural-phase transformations occurring on the surface of the workpiece. The results of the work can be further used for a more detailed study of the factors influence degree on the nature and value of residual stresses arising in the surface layer of the part after machining with a blade tool.

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