Prediction of stability in boring using a multistep tool
TypeArticles dans des revues avec comité de lecture
This article presents an original study about the dynamic of a machining operation based on the coupling receptance methodology. The Frequency Response Function (FRF) of a machine tool is numerically coupled with the FRF matrix of a multi-stage reaming tool in order to predict its dynamic behavior during the operation. This coupling results in a mix of measured and numerical FRF matrix and is used for solving the stability prediction of the operation with an analytical methodology. Stability lobes are computed in respect with the load factor. It is shown in the paper that this methodology is suitable for adjusting the cutting conditions in the case of a given operation where the tool is identified but also for a numerical model of a tool, for instance at a design stage. As a conclusion, the presented methodology can help to target the best cutting conditions for a given machine-tool and toll but also help the manufacturer in the tool choice or design in order to guaranty the stability of the operation.
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Etude du comportement dynamique de broche d'un centre d'usinage dans son espace de travail : application en fraisage SELMI, Jaouher; COSTES, Jean-Philippe; LORONG, Philippe; POULACHON, Gérard; CARRAS, Patrice (2014)Une méthodologie est proposée dans cet article dans le but de faciliter l’évaluation de la stabilité d’une opération de fraisage, pour une broche, un outil et une position connue de la broche dans son espace de travail. ...
SELMI, Jaouher; COSTES, Jean-Philippe; LORONG, Philippe; POULACHON, Gérard; CARRAS, Patrice (Congrès Français de Mécanique, 2013)Machine tool is the most used manufacturing means in automotive industry. This kind of manufacturing machine is very expensive and has immediate influence on produced workpiece quality. During machining process design, a ...
SELMI, Jaouher; COSTES, Jean-Philippe; LORONG, Philippe; POULACHON, Gérard; CARRAS, Patrice (MM Science Journal, 2014)It is proposed to apply a methodology in order to evaluate the ability of different machining systems (Spindle/Tool) to run a reaming process in a stable way.The methodology is based on an experimental measurement of the ...
CAMPOCASSO, Sébastien; POULACHON, Gérard; COSTES, Jean-Philippe; BISSEY BRETON, Stéphanie (Elsevier, 2014)The cutting forces are often modelled using edge discretisation methodology. In finish turning, due to the smaller corner radii, the use of a local cutting force model identified from orthogonal cutting tests poses a ...
CAMPOCASSO, Sébastien; COSTES, Jean-Philippe; FROMENTIN, Guillaume; BISSEY BRETON, Stéphanie; POULACHON, Gérard (Elsevier, 2013)In order to predict the characteristics of the machined part, such as geometry, surface roughness and fatigue or corrosion resistance, the cutting forces values should be known as precisely as possible. The edge discretisation ...