Volumetric accuracy analysis based on generalized geometric error model in multi-axis machine tools

Kim, K.; Kim, M.K.

doi:10.1016/0094-114x(91)90084-h

Cited by 43 publications

(28 citation statements)

References 2 publications

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“…It can be observed from the linear nature of the curve that the stress values on the fixture lie within elastic limits and hence below the yield stress of Structural Steel (25HRC). [6] …”

Section: Resultsmentioning

confidence: 99%

Design and Analysis of Split Fixture for Gear Hobbing Machine

Shenoy¹,

Naik²,

Shettar³

et al. 2018

MATEC Web Conf.

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Abstract. Compared to the conventional gear hobbing fixtures, split fixture can effectively reduce job set-up time during the manufacturing process. This paper investigates the behaviour and analysis of split fixture under varying static loading conditions. Design of the part was established by considering the ability of the split fixture to carry jobs of various diameters. In order to validate the design, Static structural analysis was carried out on two positional configurations of the split fixture. A load of 1 ton was applied on the resting face of the fixture to simulate the effect of holding the job. The analysis included a study of the Stress, Deformations, and Modal analysis at different resonating frequencies to check for failure of design. By applying varying loads similar to practical conditions, it was observed that the design successfully withstood the applied forces without failure and a factor of safety of 142 was achieved in a critical loading case. Investigating the effect of dynamic loads on the Split Fixture and including auxiliary assembly components in design analysis.

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“…It can be observed from the linear nature of the curve that the stress values on the fixture lie within elastic limits and hence below the yield stress of Structural Steel (25HRC). [6] …”

Section: Resultsmentioning

confidence: 99%

Design and Analysis of Split Fixture for Gear Hobbing Machine

Shenoy¹,

Naik²,

Shettar³

et al. 2018

MATEC Web Conf.

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show abstract

“…Based on MBS theory, various parts of the machine can be described just as an arbitrary classical body in terms of a geometric structure, and a machine tool can be abstracted into MBS [35,36].…”

Section: Topological Structure and Lower Body Arraymentioning

confidence: 99%

An analytical approach for crucial geometric errors identification of multi-axis machine tool based on global sensitivity analysis

Cheng

Zhao

Zhang

et al. 2014

Int J Adv Manuf Technol

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Geometric errors directly affect the tool tip position, reduce machining accuracy, and are one of the most important errors of multi-axis machining tool. However, the geometric errors are intercoupling, and the measured values at different points vary and are stochastic. The identification of the most crucial geometric errors and the determination of a method to control them is a key problem to improve the machining accuracy of machine tool. To achieve this goal, a new analytical method, to identify crucial geometric errors for a multi-axis machine tool is proposed here based on multibody system (MBS) theory and global sensitivity analysis. The volumetric error modeling of multi-axis machine tool has been given by MBS theory, which describes the topological structure of multibody system simply and conveniently in a matrix. The stochastic characteristic of geometric errors is taken into consideration and Sobol global sensitivity analysis method is introduced to identify crucial geometric errors of machine tool. A vertical machining center is selected as an illustration example. The analysis results reveal that the analytical method presented in this paper can identify the crucial geometric errors and are helpful to improve the machining accuracy of multi-axis machine tool.

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“…La figure 7 présente les sources thermiques possibles ainsi que leur mode d'action dans une machine-outil. Les mécanismes de transfert de la chaleur à travers la structure de la machine-outil sont variés (conduction, convection et radiation) [34,37].…”

Section: Erreurs Dues Aux Chargements Thermiquesunclassified

Développement d'un système de mesure en temps réel des erreurs dans les machines-outils à axes multiples pour une compensatioin active /

Barka¹

2005

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Volumetric accuracy analysis based on generalized geometric error model in multi-axis machine tools

Cited by 43 publications

References 2 publications

Design and Analysis of Split Fixture for Gear Hobbing Machine

Design and Analysis of Split Fixture for Gear Hobbing Machine

An analytical approach for crucial geometric errors identification of multi-axis machine tool based on global sensitivity analysis

Développement d'un système de mesure en temps réel des erreurs dans les machines-outils à axes multiples pour une compensatioin active /

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