Modelling and simulation of micro-milling cutting forces

Afazov, Shukri; Ratchev, Svetan; Segal, Joel

doi:10.1016/j.jmatprotec.2010.07.033

Cited by 146 publications

(70 citation statements)

References 15 publications

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“…The non-linearity at small uncut chip thickness arises from the micro-milling forces being significantly affected by the tool radius, which creates a negative rake between the tool and the workpiece, as pointed out by Afazov et al (2010).…”

Section: Validation Of Mpmmentioning

confidence: 99%

“…The material parameters for AISI 4340 are shown in Table 2. Afazov et al (2010): ρ 0 is the reference bulk density, E Young's modulus, ν the Poisson ratio, Q the artificial viscosity coefficient, γ the hourglass coefficient, and Cp the specific heat capacity at room temperature.…”

Section: Computational Setup and Simulation Proceduresmentioning

confidence: 99%

“…In addition, Coulomb friction is applied using a coefficient of friction µ = 0.4, as in Afazov et al (2010).…”

Section: Heat Transfer In the Substrate And Interaction With The Cuttmentioning

confidence: 99%

“…To validate the MPM algorithm, it is first attempted to reproduce results from recent FEM simulations carried out by Afazov et al (2010), where micro-milling cutting forces for various cutting velocities and tool tip curvatures were calculated. The same Johnson-Cook constitutive model and material parameters as in the cited reference given in Tables 1 and 2 Fig.…”

Section: Validation Of Mpmmentioning

confidence: 99%

“…12 in Afazov et al (2010). The sinusoidal force originates from the rotation of the cutting tool with a rotation angle θ.…”

Section: Validation Of Mpmmentioning

confidence: 99%

See 4 more Smart Citations

Development and validation of a meshless 3D material point method for simulating the micro-milling process

Leroch¹,

Eder²,

Ganzenmüller³

et al. 2018

Preprint

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A meshless Generalized Interpolation Material Point Method for simulating the micro-milling process was developed. This method has several advantages over well-established approaches (such as finite elements) when it comes to large plastic strains and deformations, since it inherently does not suffer from tensile instability problems. The feasibility of the developed material point model for simulating micro-milling is verified against finite element simulations and experimental data. The model is able to successfully predict experimentally measured cutting forces and determine chip temperatures in agreement with conventional finite element simulations. After having verified the approach, the model was applied to perform extensive numerical 3D simulations of the micro-milling process. The goal is to evaluate the response of the micromilling cutting forces as function of the hardening behavior of the micro-milled material. The meshless 3D simulations reveal a dependency of tool force slopes (with respect to the uncut chip thickness) on the hardening parameters. Based on these findings, a new approach is outlined to determine hardening parameters directly from two micro-milling experiments with distinct, sufficiently large uncut chip thicknesses.

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Section: Validation Of Mpmmentioning

confidence: 99%

Section: Computational Setup and Simulation Proceduresmentioning

confidence: 99%

“…In addition, Coulomb friction is applied using a coefficient of friction µ = 0.4, as in Afazov et al (2010).…”

Section: Heat Transfer In the Substrate And Interaction With The Cuttmentioning

confidence: 99%

Section: Validation Of Mpmmentioning

confidence: 99%

“…12 in Afazov et al (2010). The sinusoidal force originates from the rotation of the cutting tool with a rotation angle θ.…”

Section: Validation Of Mpmmentioning