vibration grinding process
Study on ultrasonic elliptical vibration-assisted grinding …
This study investigates three typical structures of C/SiC composite material, subjecting them to both conventional grinding and two-dimensional ultrasonic vibration-assisted …
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Investigation of the effect of vibration characteristics on the
The grinding process is a complex dynamic system, and grinding vibration has a great influence on the grinding process. In this paper, the dynamic change of grinding depth a p is used as a bridge to establish a theoretical model of the relationship between blade vibration and blade tip surface roughness. The important …
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MOPSO process parameter optimization in ultrasonic vibration …
The ultrasonic vibration-assisted profile grinding process enables the formation of workpieces with exceptional shape accuracy and high surface quality, while also optimizing machining parameters. Ultrasonic vibration-assisted grinding (UVAG) is a highly effective technique for improving the grindability of difficult-to-cut materials, …
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[PDF] Study on Ultrasonic Vibration Effects on Grinding Process …
The results obtained have been compared with the conventional plunge grinding process without ultrasonic vibration and indicated that the surface roughness and fracture strength improved and the grinding forces decreased. Keywords—Engineering ceramic, Finite Element Method, Plunge grinding, Ultrasonic vibration.
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Ultrasonic vibration-assisted grinding of silicon carbide …
To solve the aforementioned problems, rotary ultrasonic vibration-assisted grinding (UVAG) is introduced for grinding SiC ceramics. ... As a special machining method, rotary UVAG introduces high-frequency vibrations during the process. Therefore, in addition to grinding parameters, amplitude and frequency are two important …
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Effect of Ultrasonic Vibration Assisted Grinding Process on …
This paper study on the influence of ultrasonic vibration assisted grinding (UAG) process on surface topography and properties of C/SiC composites. Through the surface quality experiments of common grinding (CG) and UAG, the height distribution parameters and function parameters are obtained and used to analyze the …
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Longitudinal ultrasonic vibration effects on grinding …
Figure 1 shows the diagram of UASG and UAEG; where the workpiece coordinate system O-XYZ is taken as the global coordinate system, a p is the grinding depth (μm), b is the grinding width (mm), and A is the ultrasonic amplitude (μm). As shown in Fig. 1(a) and (b), the longitudinal ultrasonic vibrations are parallel and perpendicular …
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AAC theory for ultrasonic vibration-assisted grinding
The grinding process enables the effective removal of difficult-to-machine materials, which presents a contradiction between machining efficiency and quality. …
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A comprehensive review on the grinding process: …
Grinding is a manufacturing process which significantly contributes in producing high precision and durable components required in numerous applications such as aerospace, defence and automobiles.
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Study on formation mechanism and regularity of residual …
The ultrasonic vibration grinding (dry grinding) process generates a lot of heat in the contact area between the grinding wheel and the workpiece. The generated heat is transmitted into the surface of the workpiece, carried away by the grinding debris, flowing into the grinding wheel and air, but most of the heat is flowing into the workpiece ...
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Spindle Bearing Vibration Characteristics of Surface Grinding …
Grinding process is one such machining operation used for finishing process, involving the parameters such as work piece, grinding wheel, speed and depth of cut. ... In this context, an effort has been made to explore the surface grinding machine tool vibration characteristics. 2 Experimental Model. Experimental trials were performed on …
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Research on modeling of grinding force in ultrasonic vibration…
From Eq. (), it can be seen that a single abrasive grain vibrates multiple times in the grinding zone in ultrasonic vibration, so multiple chips can be formed while only one chip is formed common grinding.According to the previous kinematic analysis of the single abrasive grains, it is known that the trajectory of the abrasive grains during the grinding …
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Effect of Ultrasonic Vibration Assisted Grinding Process …
The effect of process parameters on the machined surface morphology has been investigated. Wang et al. [20] explored the influence of ultrasonic vibrations on the surface morphology of composite ...
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Precision Grinding Technology of Silicon Carbide …
In ultrasonic vibration grinding of brittle materials, abrasive grains remove material from the surface of the workpiece through a mixture of diamond grain processing caused by rotation of the diamond tool, …
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Development of Real-time Grinding Process Monitoring and Analysis
To make the process in par with the latest industry 4.0, real-time process monitoring of the grinding process with the use of a vibration sensor is considered. The developed system in the paper focusses on the monitoring of the process behavior and log the occurred changes. The hardware architecture and software modules are introduced …
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Vertebral Lamina State Estimation in Robotic Bone Milling Process …
Abstract: During the robot-assisted laminectomy, vertebral laminas are removed via automatic milling operation, while inadequate estimation of the remaining lamina thickness will result in dangerous bone milling. In this article, a dynamic milling model is established to analyze the harmonic amplitudes in the milling vibration signals. …
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Grinding Machine: Parts, Types, Operations,
#1 Base or Bed. The horizontally positioned grinding machine bed, which is the machine's bottom, supports all of the grinding components. Starting up a machine causes some vibration, so the base …
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Monitoring of Self-Excited Vibration in Grinding Process …
Grinding is a manufacturing process that has the objective of granting the workpiece a high-quality surface and is located at the end of the sequence of machining processes.
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Surface texture formation mechanism based on the ultrasonic vibration …
Research on the process mechanism of ultrasonic vibration-assisted grinding had been carried out by some researchers. H. Wang et al. [35] studied the material removing process, single grain trajectory model, and tool-workpiece interactions considering many process parameters with elliptical ultrasonic vibration-assisted …
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Monitoring of Self-Excited Vibration in Grinding Process …
This work goal is to present a method for chatter detection in surface grinding of SAE 1045 steel with aluminum oxide grinding wheel by using acceleration signals and digital …
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Dynamic model of the grinding process
Dynamic analysis of the grinding process is necessary to reduce the surface waviness and roughness induced by vibrations, and to offer a machining accuracy in the order of nanometers. This research is to investigate the dynamic function of the grinding process. A new approach to determination of cutting factors in dynamic grinding is …
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Mechanism characteristic analysis and soft measuring …
1. Introduction. Operational optimization control and reduction on energy consumption for the entire production process of mineral processing enterprises are urgent problems that should be solved (Chai, 2013, Chai et al., 2014a, Chai et al., 2014b).Grinding process is a "bottleneck" operation in mineral processing, where …
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Grindability of γ‑TiAl intermetallic compounds …
The combination of ultrasonic vibration-assisted grinding (UVAG), the ultrasonic vibrating method, and the conventional grinding (CG) process is proposed to improve the grindability of hardened ...
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Vibration-based gear continuous generating grinding fault
Vibration signals from the grinding process are obtained, are pre-processed and then are transformed into 2D representations using WPD. The 2D representations are further fed to the designed deep learning model. Then testing data are loaded at the trained model and are classified at fault classes. The time and frequency regions related to the ...
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Underformed chip thickness and machined …
ultrasonic vibration could stre ngthen the self-sharpening of grinding w heel in the grindin g process. Dong et al. [18] carried out rotary ultrasonic vibration machini ng of titanium matrix ...
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IET Science, Measurement & Technology
2.2 Vibration signal applied to grinding processes monitoring. Vibration measurement techniques are important in industrial and scientific applications. Both forced and self-excited vibrations occur during the grinding process. Forced vibrations are caused by the rotation of unbalanced axes, collisions between elements at the end of …
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A dynamic model of cylindrical plunge grinding process for …
An improved model of the grinding process was developed which is able to simulate self-excited vibrations due to a regenerative effect on the workpiece and the grinding wheel surface.
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Monitoring of Self-Excited Vibration in Grinding Process …
Abstract: Grinding is a finish manufacturing process for high precision parts. As the part has high value added at this stage, anomalies and defects are unacceptable. Self-excited vibration or just chatter is an undesirable and complex phenomenon that occurs in grinding, as it may impair the performance of ground parts due to the negative effects …
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Coupling of double grains enforces the grinding process in …
Vibration-assisted grinding is an effective method for precision machining of hard and brittle materials realized via the application of a certain frequency and …
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Modeling of grinding force in longitudinal ultrasonic vibration
Ultrasonic vibration–assisted grinding is an effective method for improving the surface quality of brittle and hard materials. The grinding force is one of the key factors affecting the surface quality of the machined surface, and this has been investigated both experimentally and theoretically. However, the influence of process parameters on …
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