2014-12-14 of the process. In case of grinding, the data collected from a set of sensors can be used to analyze the relevance of grinding cycle and for estimating the performance of grinding process [Andrew et. al., 2006]. Therefore, the steps covered to diagnose a grinding process include: i) Process monitoring and
More2021-10-11 With the increasing requirements of environmental protection, energy conservation, and low consumption, minimum quantity lubrication (MQL) technology has attracted people’s attention. In the grinding process, the cooling performance of MQL has always been the focus. In this study, considering the influence of the grinding wheel speed, grinding fluid flow rate, and gas pressure on the useful ...
MoreMetal grinding is a one of the manufacturing technologies that is greatly connected to particles emission. Particles generated during the grinding process are dangerous in
More2021-11-1 Grinding is widely used for processing 4H–SiC single crystals. Many scholars have studied the grinding surface appearance , subsurface damage , and process means optimization [, , ] of the SiC grinding process. Recently, ultra-precision grinding has achieved sub-nanoscale and even nanoscale machining accuracy, but it is difficult to analyze ...
More2021-6-5 The abrasive particles on the surface of micro abrasive tool are very small and tightly distributed, which is prone to appear debris blockage and accelerate tool wear, so the service life and performance of existing micro abrasive tools have become one of ...
MoreThe chip formation mechanisms during grinding are not yet fully understood. The abrupt interruption of the grinding process with a quick stop device is a suitable method to analyze the chip formation mechanisms during grinding. However, there is no device available that enables a reproducible interruption at cutting speeds above vc = 5 m/s.
More2014-10-24 This study investigates warping of silicon wafers in ultra-precision grinding-based back-thinning process. By analyzing the interactions between the wafer and the
More2018-8-1 Crack induced surface/subsurface damage in SiC ceramic grinding limits the industrial application. A single-grain scratching simulation based on the smoothed particle hydrodynamics (SPH) has been used to analyze the SiC grinding mechanism, including the material removal process, scratching speed effect on crack propagation, ground surface roughness, and scratching force.
More2021-11-17 Process Improvement via Bottleneck Analysis. In Bottleneck Analysis we are seeking to understand imbalances within a process, which cause delays, inventory build-up’s, process stoppages. Ideally, we want a smooth continuous, even process flow, however, in reality process input flows can at times exceed the throughput capability of a process.
MoreAbstract The Dynamic Data System (DDS) methodology is used to reveal the grinding process dynamics from the cutting force signal. The discrete DDS models are fitted to 16 sets of cutting force signals and the models as high as tenth order are obtained. From the analysis of the discrete models, the natural frequencies corresponding to characteristics subsystems such as machine tool and ...
More2021-5-9 To address such a complex problem, it is necessary to analyze the mechanics of the grinding process using probability statistics, which is the subject of this investigation. Such an analysis is applicable to both form and finish grinding (FFG), such as surface grinding and stock removal grinding (SRG), such as cut-off operation.
MoreThis w ork intends to analyze w hether the use of a deflectors. ... The combination of ultra hard abrasives and the high speed grinding process enables the fragmentation of chips into smaller size ...
More2012-9-1 Study on Grinding Processing of Sapphire Wafer. This paper reports our recent results on the diamond grinding process of single crystallized sapphire wafers. It was found that the diamond grains were severely dislodged at the wheel/ workpiece interface and the material was removed by a mixed process of both grinding and lapping.
MoreREGULAR ARTICLES. Analysis of the cutting fluid influence on the deep grinding process with a CBN grinding wheel . Ronaldo Yoshinobu Fusse I; Thiago Valle França I; Rodrigo Eduardo Catai II; Leonardo Roberto da Silva III; Paulo Roberto de Aguiar IV; Eduardo Carlos BianchiV, * * e-mail: [email protected] . I Graduate Students - Paulista State University - UNESP, Department of
MoreThe chip formation mechanisms during grinding are not yet fully understood. The abrupt interruption of the grinding process with a quick stop device is a suitable method to analyze the chip formation mechanisms during grinding. However, there is no device available that enables a reproducible interruption at cutting speeds above vc = 5 m/s.
More2012-5-10 The first aim of this report was to introduce the research methods that can be used to analyze the generating gear grinding process in more detail. Therefore, a manufacturing simulation and an analogy trial have been introduced. The second aim of this report was the determination of cutting forces in generating gear grinding depending on the ...
More2014-10-24 This study investigates warping of silicon wafers in ultra-precision grinding-based back-thinning process. By analyzing the interactions between the wafer and the vacuum chuck, together with the ...
More2.2. Vibration Modeling of the Flat Surface Grinding Process. A free-body diagram of the flat surface grinding process with forces acting on the grinding wheel and the workpiece is indicated in Figure 2.There is a normal grinding force (), which acts due to the chip formation, and a normal grinding force (), which acts due to the friction between the wheel and the workpiece in the normal ...
More2021-7-18 Specifically, a process model for robot-workpiece interaction and grinding process cycle time is developed. This model is used to analyze the behavior of a face grinding process cycle. The results show that for a given robot stiffness, minimizing the face grinding cycle time requires the process to be operated at the highest achievable wheel speed and infeed rate with a wheel of higher hardness.
More2021-5-9 To address such a complex problem, it is necessary to analyze the mechanics of the grinding process using probability statistics, which is the subject of this investigation. Such an analysis is applicable to both form and finish grinding (FFG), such as surface grinding and stock removal grinding (SRG), such as cut-off operation.
More2021-5-26 Using a Rheometer to Analyze the Grinding Process of Coated Abrasives. In 2009, researchers at Anton Paar Germany utilized a rheometer linked to a tribology cell to effectively examine the tribological functionality of numerous greases. In a recent
MoreAbstract The Dynamic Data System (DDS) methodology is used to reveal the grinding process dynamics from the cutting force signal. The discrete DDS models are fitted to 16 sets of cutting force signals and the models as high as tenth order are obtained. From the analysis of the discrete models, the natural frequencies corresponding to characteristics subsystems such as machine tool and ...
More2012-9-1 Study on Grinding Processing of Sapphire Wafer. This paper reports our recent results on the diamond grinding process of single crystallized sapphire wafers. It was found that the diamond grains were severely dislodged at the wheel/ workpiece interface and the material was removed by a mixed process of both grinding and lapping.
More2020-5-4 Understanding the Thread Grinding Process. Published: May 04, 2020. Thread grinding is a method of creating screw threads that utilizes a CNC machine with an abrasive grinding wheel. Compared to other thread manufacturing processes, thread grinding can be used to create incredibly complex and highly accurate thread designs.
MoreREGULAR ARTICLES. Analysis of the cutting fluid influence on the deep grinding process with a CBN grinding wheel . Ronaldo Yoshinobu Fusse I; Thiago Valle França I; Rodrigo Eduardo Catai II; Leonardo Roberto da Silva III; Paulo Roberto de Aguiar IV; Eduardo Carlos BianchiV, * * e-mail: [email protected] . I Graduate Students - Paulista State University - UNESP, Department of
More2021-7-18 Specifically, a process model for robot-workpiece interaction and grinding process cycle time is developed. This model is used to analyze the behavior of a face grinding process cycle. The results show that for a given robot stiffness, minimizing the face grinding cycle time requires the process to be operated at the highest achievable wheel speed and infeed rate with a wheel of higher hardness.
More2018-3-5 Six Sigma has been successfully implemented in the grinding process in automotive engine manufacturing organization. The proposed Six Sigma methodology has been applied to facilitate defect reduction. The developed methodology with linkage of DMAIC (define, measure, analyze, improve and control) and change management techniques reduces defects.
More2020-6-16 Maximum grinding control benefits are obtained when the particle size analyzer receives a sample from: a truly representative sampling system; a sampler located as close as possible to the classifier to minimize measurement lag and
More2020-5-26 Called CBN Abrasives. Compared with diamond grinding wheels, CBN has more advantages in processing ferrous metals. Next, the editor will analyze the relevant process characteristics of Suzhou cbn grinding wheel in detail. 1. High hardness and high
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