Results 161 to 170 of about 41,780 (205)

Elucidation of the mechanism of chatter mark formation during end-milling and inverse analysis of chatter vibration by two-dimensional discrete Fourier transform of chatter mark

Precision Engineering, 2023
Nobutoshi Ozaki, Toma Taniguchi, Toshiki Hirogaki, Eiichi Aoyama   +3 more
openaire   +3 more sources

Optical measurements of chatter marks

Wear, 1986
Abstract When testing geometrical elements of machined components one distinguishes between form, waviness and roughness. To describe the roughness there is a choice of parameters which cover various functions. To describe the form and waviness, there are only the peak-to-valley values.
N. Rau, G. Huebner
openaire   +1 more source

Optical Measuring Instrument for Chatter Marks

CIRP Annals, 1984
Summary A new instrument has been developed and is now in use on shop floor for inspecting chatter marks sometimes generated by the grinding and the ultra-precision machining process. The instrument is able to measure both geometrical waviness and fluctuation of glossiness of the finished surface.
Y. Sakai, S. Ogata, S. Asai, T. Hoshi
openaire   +1 more source

Self-Excited Chatter and its Marks in Turning

Journal of Engineering for Industry, 1984
Investigations were made on self-excited chatter of the work which is held at one end on a lathe machine. Analysis was carried out by a two-degrees-of-freedom system. It was verified that introduction of the multiple regenerative effect governs the finite amplitude of the vibration after it is excited.
T. Kaneko, H. Sato, Y. Tani, M. O-hori
openaire   +1 more source

Investigation of Control Methods of Chatter Vibration Based on Analysis of End-Milling Chatter Mark

Advanced Materials Research, 2015
Chatter vibration generated by coupling a work-piece, machine tools, and cutting tool is a serious problem for engineers. A regular pattern forms the machined surface when chatter vibration occurs. There must be a direct relationship between the relative displacement and machined surface.
Ryosuke Shiota, Tatsuya Furuki, Toshiki Hirogaki, Eiichi Aoyama   +3 more
openaire   +1 more source

An diagnosis method of chatter marks based on PCA

2010 8th World Congress on Intelligent Control and Automation, 2010
Chatter mark on the surface of the cold rolled or skin passed steel strips will seriously depress the product quality. This paper deeply analysis the mechanism and data relationship of rolling plant, find out the process data information and variables related to chatter mark.
null Jian Zhang, null Shengxi Wu, null Jiazhuo Xu   +2 more
openaire   +1 more source

Modeling, analysis, and removal of chatter marks in flexible turning

The International Journal of Advanced Manufacturing Technology, 2017
Chatter is a kind of self-excited, unstable vibration in almost all machining processes. Existing studies have been focusing on the pre-chatter stage, developing various techniques to detect, predict, and suppress chatter. In real applications, chatter will inevitably happen under certain cutting conditions, with generating chatter marks on the ...
Yuxin Sun, Zhenhua Xiong
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Scattered light sensor for chatter mark detection in nanometer scale

International Journal of Nanomanufacturing, 2012
The detection and analysis of chatter marks in nanometer scale, using an angle resolved scattered light sensor, is discussed in this paper. After explaining the fundamental principles of scattered light sensors, a transfer function is obtained which yields the limit of wavelength that can be detected.
J. Seewig, M. Wendel
openaire   +1 more source

Scatterometric analysis of chatter marks occurring in industrial grinding processes

SPIE Proceedings, 2010
Grinding processes often underlie chattering which results in a wavy surface of the ground metal sheet. In this work it will be shown that the angle resolved light scattering method is not only suitable to monitor industrial grinding processes, in both waviness and roughness modes, but also enables the determination of the waviness of a ground ...
J. Böhm, A. Vernes, M. Jech, M. Vellekoop   +3 more
openaire   +1 more source

A Method of Chatter Marks Identification Based on Autocorrelation-Threshold

Key Engineering Materials, 2013
Mill chattering is frequently observed in the strip rolling process which causes dark and bright fringes on the strip surface. Due to the complex vibration sources and the characteristic signals usually masked by the heavy noise signals, how to identify and control the mill chattering are always difficult problems.
Li Ming Wang, Yi Lin Yuan, Yi Min Shao
openaire   +1 more source