نتایج جستجو برای: grinding vibration
تعداد نتایج: 58037 فیلتر نتایج به سال:
According to the non-linear and non-stationary characteristics of vibration signal in roller grinding manufacturing process, background signals, namely when grinder is idling during contact grinding, are collected separately, decomposed into multiple by method CEEMDAN modal decomposition. Then several components removed correlation analysis. Finally, denoised analyzed wavelet threshold denoisin...
C/SiC composite material is the best choice for important parts such as hot-end structure of aerospace vehicles. Research and optimization cutting force ultrasonic vibration-assisted grinding are great significance when it comes to revealing machining mechanism composites realizing low-damage efficient machining. In this paper, comparative experimental study common carried out; variation laws r...
Vibration ball-milling in a zirconia-lined vessel afforded clean and quantitative nucleophilic displacement reactions between 4-methoxybenzylthiolate salts and nucleoside 5'-halides or 5'-tosylates in five to 60 minutes. Under these conditions, commonly-encountered nucleoside cyclisation byproducts (especially of purine nucleosides) were not observed. Liquid-assisted grinding of the same 5'-iod...
This paper describes the implementation of an integrated monitoring system for a CNC machine tool and its machining processes such as drilling, milling, turning and grinding. The monitoring system uses a variety of sensors such as force, torque, vibration, acoustic emission, and temperature to monitor the machining processes and the physical condition of the machine tool. The major aim is to im...
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