Spindle position influence on milling operation stability
TypeCommunications sans actes
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 tool machine specification sheet is written for each machining operation depending on workpiece required quality, material hardness and cutting conditions. In this way, in order to optimize investments, new machining center should be able to manufacture the quality set by workpiece specification sheet. The main aim of the work presented in this paper is to define and test a new method for spindle dynamic stiffness comparing. The used approach is firstly based on dynamic criteria attained through FRF (Frequency Response Function) measured experimentally on machining center spindle. Secondly, stability limits are calculated and then obtained experimentally. In this case the criterion of st eady state limit is used to compare different spindle configurations regarding the tool.
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SELMI, Jaouher; LORONG, Philippe; COSTES, Jean-Philippe; POULACHON, Gérard; CARRAS, Patrice (Springer, 2015)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 ...
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 ...
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. ...
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 ...
A generalised geometrical model of turning operations for cutting force modelling using edge discretisation CAMPOCASSO, Sébastien; COSTES, Jean-Philippe; FROMENTIN, Guillaume; BISSEY BRETON, Stéphanie; POULACHON, Gérard (Elsevier, 2015)The knowledge of cutting forces is of prime importance to ensure the success of cutting operations, the desired properties of the machined parts and therefore the functionality of the workpieces. Edge discretisation is one ...