The formation mechanism and the influence factor of residual stress in machining

Zhaoxu QI, Bin LI, Liangshan XIONG

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PDF(298 KB)
Front. Mech. Eng. ›› 2014, Vol. 9 ›› Issue (3) : 265-269. DOI: 10.1007/s11465-014-0311-0
RESEARCH ARTICLE

The formation mechanism and the influence factor of residual stress in machining

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Abstract

Residual stresses generated in cutting process have important influences on workpiece performance. The paper presents a method of theoretical analysis in order to explicate the formation mechanism of residual stresses in cutting. An important conclusion is drawn that the accumulated plastic strain is the main factor which determines the nature and the magnitude of surface residual stresses in the workpiece. On the basis of the analytical model for residual stress, a series of simulations for residual stress prediction during cutting AISI 1045 steel are implemented in order to obtain the influences of cutting speed, depth of cut and tool edge radius on surface residual stress in the workpiece. And these influences are explained from the perspective of formation mechanism of residual stress in cutting. The conclusions have good applicability and can be used to guide the parameters selection in actual production.

Keywords

residual stress / analytical model / strain / plastic / cutting parameter

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Zhaoxu QI, Bin LI, Liangshan XIONG. The formation mechanism and the influence factor of residual stress in machining. Front. Mech. Eng., 2014, 9(3): 265‒269 https://doi.org/10.1007/s11465-014-0311-0

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Acknowledgments

The authors acknowledge the Foundation for Innovative Research Groups of the National Natural Science Foundation of China (No. 51121002) and the National Basic Research Program of China (No. 2011CB706803).

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
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