New approaches for evaluating rheological models in composites

Бобрышев, А. Н.; Лахно, Александр Викторович; Voronov, P V; Галимов, Э Р; Sharafutdinov, R F; Galimova, N Ya

doi:10.1088/1757-899x/86/1/012001

Cited by 2 publications

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Maxwell and Voigt models [3] are adequate for qualitative analyses, but generally poor for the representation of behaviour of real materials. In order to describe the nature of changes in stress and strain of metal and their dependence on metal structure, we need to increase the number of parameters in model [4]. In this paper in accordance with the results of previous research [5][6][7] we describe the formation of flat chip in the process of cutting as interaction between the cutting wedge and the workable material.…”

Section: Introductionmentioning

confidence: 66%

Simulation of plastic deformation and destruction in the process of chip formation

2018

View full text Add to dashboard Cite

Metal cutting is a complex process in which several mechanisms are at work simultaneously. The mathematical modelling allows carrying out research into the optimization of machining conditions. This work examines the simulation of chip formation during the process of cutting. The studies demonstrated that the chip formation process, taking into account the plastic deformation and destruction of metal in the local zone, is most appropriately represented by a rheological model in the form of a series connection of elasticductile- plastic relaxing medium of Ishlinskiy (reflecting the process of primary deformation of metal from the cut off layer) and the medium of Voigt with two elastic-dissipative elements (representing the process of deformation and frictions from the convergent shaving). The attained complex rheological model served as the basis for constructing a representative dynamic model for the chip formation process. The key factors that govern the chip formation have been taken into account, such as tool vibration frequency and amplitude, depth of cut, feed rate.

show abstract