Dynamic cutting force measuring

Tounsi, Nejah; Otho, Alain

doi:10.1016/s0890-6955(99)00117-0

Cited by 44 publications

(16 citation statements)

References 3 publications

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“…3 Views of modified friction device adapted on a hydraulic machine from one to three applied force components after the use of correction functions. These correction functions have to be built in taking into account the dynamic behavior of the load sensor in order to clean up the strain gauges recordings or piezoelectric dynamometer recordings [19][20][21]. The goal is to deduce accurately the cutting forces applied on the tools.…”

Section: Force Measurement For Other Applicationsmentioning

confidence: 99%

A Device Enhancement for the Dry Sliding Friction Coefficient Measurement Between Steel 1080 and VascoMax with Respect to Surface Roughness Changes

et al. 2010

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An enhancement of an existing tribometer device developed by Philippon et al. (Wear 257:777-784, 2004) is presented in this work. This experimental device is made up of a dynamometer ring and a specific load sensor allowing to apply an apparent normal force on specimens and to measure frictional forces respectively. A set of strain gauges are added to the upgraded dynamometer ring in this new configuration. The apparent normal force can be recorded accurately during the sliding process. The setup is adapted on a hydraulic testing machine to carry out steel-on-steel dry sliding tests. The first set of standard Steel on standard Steel specimens (XC 38 French standard steel) with two apparent normal pressures are imposed (8 and 80 MPa) as the range of sliding velocities varies from 0.12 to 3.72 m/s for the same contact conditions. The main set of experiments with low sliding velocities (varying from 0 to 3 m/s) for the Steel 1080 on Steel VascoMax are performed in the same tested setup. The recordings of normal and tangential forces leading to the friction coefficient determination are discussed. The values of dry friction coefficient μ according to the experimental parameters are in good agreement with those observed in the literature. Using this new configuration, the effects of the sliding velocity on the surface roughness changes and on the dry fiction coefficient are also investigated. Additionally the surface roughness changes are also investigated. Performing the scans with use of the scanning electron microscope in particular locations of the specimens show the roughness decrease and reveal the occurrence of the wear phenomenon. Moreover, very interesting relations between wear and sliding velocity are observed.

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Section: Force Measurement For Other Applicationsmentioning

confidence: 99%

A Device Enhancement for the Dry Sliding Friction Coefficient Measurement Between Steel 1080 and VascoMax with Respect to Surface Roughness Changes

et al. 2010

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“…Generally speaking, modal analysis measures the response of a system to a variety of types of inputs, including short-duration, high-amplitude impulses; constant random excitations; semiconstant excitations (such as the cutting forces used in [28]) and sinusoidal excitations with fixed or varying frequencies. For this research, impulse testing was selected because it generates a broad spectrum and it allows for the immediate identification of the device under test's impulse response function from the data collected.…”

Section: Impulse Response Of Spindle and Cutter Dynamicsmentioning

confidence: 99%

Modelling and experimental investigation of spindle and cutter dynamics for a high-precision machining center

Rehorn

Jiang

Orban

et al. 2004

Int J Adv Manuf Technol

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The geometric quality of high-precision parts is highly dependent on the dynamic performance of the entire machining system, which is determined by the interrelated dynamics of machine tool mechanical structure and cutting process. This performance is of great importance in advanced, high-precision manufacturing processes, including aerospace and biomedical applications. In this paper, the dynamics of the combined spindle/cutter system, a major component of any machine tool, is identified using impact testing techniques and is successfully approximated by a second-order linear model. Results of computer simulations of machining processes that include the identified spindle/cutter dynamics show a significant influence on the quality of the final product. From this, it is concluded that, for precision workpieces, the dynamics of the spindle and cutter system will have to be taken into account in order to improve future machining controls and processes.

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“…Tounsi and Otho [15] employed a method to indentify the machine-tool-workpiece system dynamics due to cutting force variations. Tounsi et al [16,17] verified the probability of piezoelectric dynamometer measurements of dynamic cutting force. As in the aforementioned research, this work used a piezoelectric dynamometer and acceleration sensors in its analysis of the cutting process.…”

Section: Introductionmentioning

confidence: 99%

Cutting force models for Fe–Al-based coating processed by a compound NC machine tool

Sun

Zhang

Zhang³

et al. 2015

Int J Adv Manuf Technol

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The arc-spraying Fe-Al-based coating cutting process is a spindle-tool-workpiece vibration system dependent upon the machine tool's dynamic performance, cutting tool vibration, the coarse coating surface and its thin cutting depth. To investigate the cutting force, this research indicates the coating cutting fundamental mechanics; furthermore, it represents two cutting steps and cutting force models in the machining process avoiding an analysis of the natural vibration parameters of the machine tool itself. In the first cutting step, there is a transient cutting force due to forced vibration of the rough surface; the second cutting step has a steady machining feature based on the first cutting surface and the reduced hardness of the inhomogeneous region. According to the different characteristics of each cutting step, this research presents dynamic cutting calculation models including cutting parameters, tool vibration and cutting depth effects in the first cutting step. A steady cutting model is based on three cutting parameters including cutting velocity, cutting feed and cutting depth. Piezoelectric force and acceleration sensors were used to obtain accurate experimental data. Then, response surface methodology (RSM) and the principle of least squares estimation of polynomial regression (PLSEPR) were applied to analyse the resultant cutting data. The results showed that cutting force calculation models were suitable for the coating machining.

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Dynamic cutting force measuring

Cited by 44 publications

References 3 publications

A Device Enhancement for the Dry Sliding Friction Coefficient Measurement Between Steel 1080 and VascoMax with Respect to Surface Roughness Changes

A Device Enhancement for the Dry Sliding Friction Coefficient Measurement Between Steel 1080 and VascoMax with Respect to Surface Roughness Changes

Modelling and experimental investigation of spindle and cutter dynamics for a high-precision machining center

Cutting force models for Fe–Al-based coating processed by a compound NC machine tool

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