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Relationship between chatter marks and rolling force fluctuation for twenty-high roll mill
Engineering Failure Analysis, 2015Abstract Chatter marks on the surface of a rolled steel strip may seriously affect the final product quality. It is still difficult to discover the generation mechanism of chatter marks and develop an effective method to identify chatter marks. In this paper a rolling force fluctuation model is proposed based on the variation of the rolling force ...
Shengli Wu +4 more
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CIRP Annals, 1981
Summary This paper is concerned with how to display effectively 2D surface roughness, which was measured by using light sectioning method and by taking self-excited chatter marks as objective. The marks due to chatter which was mainly caused for work and tool respectively are taken.
H. Sato, M. O-hori, H. Tsuwa
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Summary This paper is concerned with how to display effectively 2D surface roughness, which was measured by using light sectioning method and by taking self-excited chatter marks as objective. The marks due to chatter which was mainly caused for work and tool respectively are taken.
H. Sato, M. O-hori, H. Tsuwa
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Analysis and Control of Chatter Marks of Strip Steel on HC Cold Rolling Mill
Advanced Materials Research, 2012According to the chatter marks on strip steel of HC cold rolling mill , by analysis the collected vibration and simulation analysis on rolling mill, it is found that chatter marks of strip steel surface cuased by the Seventh-order natural frequency. Then, for analysising cuase of chatter marks on strip steel surface, relevant inhibiting chatter marks ...
Zhi Jiang Xie, Chang Gui Xie, Ping Chen
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Model-Based Identification of Chatter Marks during Cylindrical Grinding [PDF]
, 2013 The following paper presents an online model-based monitoring algorithm that identifies and quantifies the level of waviness caused by grinding chatter exploiting accelerations measured on the machine. A Weighted Least Squares method has been applied in the frequency domain that leads to a clear interpretation of the forcing effect caused by the ...
PARENTI, PAOLO +4 more
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International Journal of Precision Engineering and Manufacturing, 2012
Recently, vibration assistance has been mainly applied to feed and cross-feed directions for milling processes. This paper investigates the effect of ultrasonic vibration assistance in tooling’s axial direction for improvement of machined surface with reduction of chatter marks.
Jeong Hoon Ko, Shao Wei Tan
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Recently, vibration assistance has been mainly applied to feed and cross-feed directions for milling processes. This paper investigates the effect of ultrasonic vibration assistance in tooling’s axial direction for improvement of machined surface with reduction of chatter marks.
Jeong Hoon Ko, Shao Wei Tan
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Chatter Marks and Vibration Analysis in a S6-High Cold Rolling Mill
2013S6-high rolling mill is an advanced mode to work the steel: it allows the use of very small work rolls laterally guided by individually adjustable side support rolls, which are supported by two rows of roller bearings mounted in cassettes. In this paper the vibrations generated in a S6-high cold rolling mill are analyzed with the aim to investigate the
Sergio Cervo +2 more
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Journal of Mechanical Science and Technology, 2014
Detecting chatter mark vibration in rolling mills operating under normal working conditions is difficult. A novel characteristic recognition method of chatter mark vibration, where the non-dimensional parameters are calculated with time varying signals and kurtosis under normal rolling mill operating conditions, is presented in this paper.
Yimin Shao +4 more
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Detecting chatter mark vibration in rolling mills operating under normal working conditions is difficult. A novel characteristic recognition method of chatter mark vibration, where the non-dimensional parameters are calculated with time varying signals and kurtosis under normal rolling mill operating conditions, is presented in this paper.
Yimin Shao +4 more
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Advanced Materials Research, 2012
The chatter mark vibration generated in the rolling process of the twenty-high roll mill not only significantly affects the mill performance, but also reduces surface quality of the strip steel. To identify the excitation source, the online monitor for the real time torsional strain of the main drive shaft is performed for a Sendzimir twenty-high roll ...
Sheng Li Wu +4 more
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The chatter mark vibration generated in the rolling process of the twenty-high roll mill not only significantly affects the mill performance, but also reduces surface quality of the strip steel. To identify the excitation source, the online monitor for the real time torsional strain of the main drive shaft is performed for a Sendzimir twenty-high roll ...
Sheng Li Wu +4 more
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Spatial Frequency Analysis of Chatter Marks
2018Chatter vibration induces a characteristic pattern on the milled surface, known as chatter marks, causing a poor surface quality. This paper investigates the chatter marks generation mechanisms focusing on their distribution, i.e., the surface spectral proprieties.
Niccolò Grossi +3 more
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Chatter marks generation mechanisms in peripheral milling
2017Machined surface quality, key aspect of milling process performance, is affected by chatter vibration that produces distinctive marks on the surface. While several works have been proposed on the prediction of the machined surface in stable condition, surface under chatter vibration has not been extensively studied.
GROSSI, NICCOLO' +2 more
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