Influence of Friction and Process Parameters on the Specific Cutting Force and Surface Characteristics in Micro Cutting

Weber, Moritz; Autenrieth, H.; Kotschenreuther, J.; Gumbsch, Peter; Schulze, Volker; Löhe, D.; Fleischer, Jürgen

doi:10.1080/10910340802518728

Cited by 33 publications

(26 citation statements)

References 9 publications

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“…The athermal part is furthermore coupled to the temperature dependence of the shear modulus. The strong softening of the material at high temperatures is adapted by an empirical function as shown in [10]. The complex material model structure allows for a better description of material behavior compared with the often applied Johnson-Cook model.…”

Section: Materials Modelmentioning

confidence: 99%

Investigation of surface near residual stress states after micro-cutting by finite element simulation

et al. 2010

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Section: Materials Modelmentioning

confidence: 99%

Investigation of surface near residual stress states after micro-cutting by finite element simulation

et al. 2010

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“…The available methods in ABAQUS for the separation of the material lead to a loss of information due to the deletion of element or nodes, for example. In [6,7], Schulze and Autenrieth present a self-designed continuous remeshing routine which avoids any loss of information in the results. In Figure 3, the scheme of the continuous remeshing routine is presented.…”

Section: Simulation Modelmentioning

confidence: 99%

“…The subroutine is called at each simulation point and the material properties are calculated under the new cutting conditions [6]. These dependencies of the material are described in more detail by Weber and Autenrieth in [7].…”

Section: Simulation Modelmentioning

confidence: 99%

Numerical Investigations on Changes of the Main Shear Plane while Broaching

2013

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The quality of broached components can be influenced by different factors, such as am-bient temperatures, human factors or vibrations of the machine structure induced by process-machine-interactions. These vibrations are normally initiated by changing pro-cess forces, which are mainly caused by cutting thickness or rake angle variations. Broached components are produced within one motion of the broach along the surface of the work piece, where multiple teeth in a row are in contact. The variation of the cutting thickness results from a wavy profile on the surface generated by the previous cut-ting process or the previous tooth. When the cutting thickness changes during the process, the rake angle varies, too. In some further published works, the changing cutting thickness and the changing rake angle during broaching were investigated by means of machining simulations with the result that the process forces are still adjusting after the cutting thickness and the rake angle have already reached a stable value. The adjustment of the shear plane on the new cutting conditions is mentioned as the main reason. This paper presents some deeper investigations on this effect. Therefore, 2D machining simulations for different cutting thicknesses and cutting velocities are performed. The investigations show tendencies for the still adjusting shear plane after changing the cutting thickness or the rake angle during the cutting process. Finally, the simulation results are validated with experimentally observed data.

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“…In the next subsection we present a method to calculate time dependent process parameters a p (t) and f (t) in order to www.zamm-journal.org calculate the actual forces. To model the specific force components a recently proposed modified Kienzle model [15] is used as starting point. The basic idea of this model is a product ansatz for the specific force, e.g.…”

Section: Force Modelmentioning

confidence: 99%

Modeling the influence of unbalances for ultra‐precision cutting processes

et al. 2011

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In order to produce components in optical quality in ultra-precision cutting processes it is very important to have a highly balanced system. Achieving the best possible balancing state is a time consuming process. Therefore, the prediction of the influence of the balancing state on the surface quality of the component is desirable. On the other hand, such a model should enable us to predict a necessary balancing state for a desired surface quality and thus save time in the balancing process. In this paper we present a model of an ultra-precision cutting experimental platform that determines vibrations and displacements of the platform caused by unbalances and forces from the cutting process. The actual cutting parameters are described by a second model. Since they depend on the unbalance displacements, both models have to be coupled to an interaction model. To compute balancing weights from vibrational measurements, regularization techniques for the solution of inverse and ill-posed problems are employed and presented.

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Influence of Friction and Process Parameters on the Specific Cutting Force and Surface Characteristics in Micro Cutting

Cited by 33 publications

References 9 publications

Investigation of surface near residual stress states after micro-cutting by finite element simulation

Investigation of surface near residual stress states after micro-cutting by finite element simulation

Numerical Investigations on Changes of the Main Shear Plane while Broaching

Modeling the influence of unbalances for ultra‐precision cutting processes

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