A new test part to identify performance of five-axis machine tool-Part II validation of S part

Wang, Wei; Jiang, Zhong Ping; Li, Qingchao; Tao, Wenjian

doi:10.1007/s00170-015-6869-9

Cited by 45 publications

(22 citation statements)

References 6 publications

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“…According to formula (26), there are 10 variables: ( , , , , , , , , , ), and these variables are related to each other. Therefore, putting formula (26) into formula (27), we can obtain the calculation formula of roughness uncertainty shown as follows:…”

Section: Uncertain Calculation Formulamentioning

confidence: 99%

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The Calculation of Roughness Uncertainty by Fitting B‐Spline Filter Assessment Middle Lines

Liu

Sang

et al. 2019

Mathematical Problems in Engineering

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The roughness and uncertainty are important parameters of surface morphology. The least square middle line method is often used to estimate the roughness and its uncertainty. However, the roughness and its uncertainty obtained by the least square middle line method are inaccurate. This paper proposes a method to calculate exactly the roughness and its uncertainty by piecewise fitting the smooth B-spline filter assessment middle lines. A B-spline smoothing filter is selected to determine the assessment middle line of roughness. The B-spline filter can not only give the accurate roughness, but also obtain the smooth assessment middle line. The model of roughness uncertainty is proposed by piecewise fitting B-spline filter middle lines as the quadratic curves. The S-shaped test part is used to verify the model of roughness uncertainty.

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Section: Uncertain Calculation Formulamentioning

confidence: 99%

“…The S-shaped test part can improve the defects of some samples with low processing precision. In recent years, the S-shaped test part [25,26] has been studied by more and more researchers. The roughness data of the S-shaped test part is obtained by contact surface profiler 2300A-RC.…”

Section: Experiments Of the S-shaped Test Partmentioning

confidence: 99%

The Calculation of Roughness Uncertainty by Fitting B‐Spline Filter Assessment Middle Lines

Liu

Sang

et al. 2019

Mathematical Problems in Engineering

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“…Wang et al studied the geometric characteristics of the S test piece and then analyzed the effect of the machining error on the S test piece. (23,24) Wu et al (25) proposed a new iterative compensation methodology for the five-axis machine tool and used the S test piece to validate it. Zhong et al (26) applied the R-test to run the trajectory of the S test piece to evaluate the geometric and dynamic accuracy of the five-axis machine tool.…”

Section: Introductionmentioning

confidence: 99%

Method of Evaluating Dynamic Accuracy of Five-axis Machine Tool Based on Test Piece and Comprehensive Evaluation System

Song¹,

Dai²,

Li³

et al. 2020

Sensors and Materials

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To improve the dynamic accuracy of a five-axis machine tool, an evaluation method based on a test piece and a comprehensive evaluation (CE) system is proposed in this paper. The test pieces, namely, cone frustum and S test piece, in ISO 10791-7 are compared to show their ability to reflect the dynamic accuracy. After the comparison, the S test piece is selected owing to its various changes in contour error under different dynamic accuracies. The kinematic and dynamic simulation model is established to affect the effects of the various dynamic factors on the S test piece. The relationship between the dynamic factors and the S test piece is applied to the construction of a CE system. Then, the evaluation of the dynamic accuracy of the fiveaxis machine tool can be completed. On the basis of the evaluation result, the error is identified to determine the factors that must be adjusted. Thus, the dynamic accuracy of the fiveaxis machine tool can be improved by the adjustment. The proposed method is validated by experiments.

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“…The test involves simultaneous five-axis peripheral machining by means of a square-end mill, which is widely applied in five-axis machining [15][16][17]. Wang et al [18,19] investigate the geometrical and kinematic characteristics of the S-shape, and Jiang et al [20] analyzed machined surfaces considering the behavior of feed-drive systems. Results of these studies clarify that the dynamic response of feed-drive systems has a significant impact on machined-surface accuracy because the velocity of each axis is subject to rapidly change during motion.…”

Section: Introductionmentioning

confidence: 99%

Influence of NC Program Quality and Geometric Errors of Rotary Axes on S-Shaped Machining Test Accuracy

Sato

Shirase

Ihara

2018

JMMP

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An S-shaped machining test is proposed for the ISO 10791-7 standard to verify the performance of five-axis machining centers. However, investigation of the factor that has the most influence on the geometrical accuracy of finished S-shaped workpieces has not been undertaken. Determination of the influence of NC program tolerance and geometric errors concerning the rotary axes on the accuracy of the finished S-shaped workpiece forms the main objective of the study. Actual cutting experiments as well as simulations were performed during the proposed investigation. Our results clarify that NC-program tolerance has a significant influence on the end quality of the machined surface. Although geometric errors pertaining to rotary axes also have a significant influence on machined-surface quality, it is difficult to evaluate the influence of each individual error, because all geometric errors make glitches at the same point on the machined surface. The proposed S-shaped machining test can be used to provide a complete demonstration of available machining techniques.

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A new test part to identify performance of five-axis machine tool-Part II validation of S part

Cited by 45 publications

References 6 publications

The Calculation of Roughness Uncertainty by Fitting B‐Spline Filter Assessment Middle Lines

The Calculation of Roughness Uncertainty by Fitting B‐Spline Filter Assessment Middle Lines

Method of Evaluating Dynamic Accuracy of Five-axis Machine Tool Based on Test Piece and Comprehensive Evaluation System

Influence of NC Program Quality and Geometric Errors of Rotary Axes on S-Shaped Machining Test Accuracy

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