The effects of structured grinding wheel designed parameters on the geometries of ground structured surfaces

Monier, Amr; Guo, Bing; Zhao, Qingliang; Guo, Zhenfei; Mahmoud, T. S.; El-Mahallawi, I.

doi:10.1007/s00170-022-09048-9

Cited by 9 publications

(3 citation statements)

References 29 publications

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“…The quality of the grinding wheel plays a vital role in the grinding process. Amr Monier [35] established a mathematical model of the grinding wheel and the workpiece and verified through experiments that the predicted surface of the mathematical model has good compatibility with the machined surface, which affects the grinding accuracy of the structural surface. Real-time event-based digital twin applications can provide support for users and decision-making processes.…”

Section: The Mainshaft Bearing Grinding Technology Based On Digital Twinmentioning

confidence: 99%

Application of Life Cycle of Aeroengine Mainshaft Bearing Based on Digital Twin

Yan³

et al. 2023

Processes

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Aeroengine mainshaft bearings are key components in modern aeroengines, and their main functions are to support the rotation of the main shaft of the aeroengine in harsh environments, such as high temperature, heavy load, high speed and oil break; reduce the friction coefficient during the high-speed rotation of the main shaft; and reliably ensure the rotation accuracy and power transmission of the aeroengine’s main shaft during operation. The manufacture of aeroengine mainshaft bearings requires complex processes and precise machining to ensure high performance and reliability, and how to intelligently complete the production and manufacture of mainshaft bearings and ensure the strength and accuracy of the bearings, quickly distinguish the fault types of the bearings and efficiently calculate, analyze and predict the life of the bearings are the current research hotspots. Therefore, building a high-fidelity and computationally efficient digital twin life cycle of aeroengine mainshaft bearings is a valuable solution. This paper summarizes the key manufacturing technology, manufacturing mode and manufacturing process based on digital twins in the life cycle of aeroengine mainshaft bearings, including the metallurgical process, heat treatment process and grinding process of aeroengine mainshaft bearings. It presents a fault diagnosis and life analysis of mainshaft bearings of aeroengines, discussing the key technologies and research directions of the life cycle of mainshaft bearings based on digital twins.

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Section: The Mainshaft Bearing Grinding Technology Based On Digital Twinmentioning

confidence: 99%

Application of Life Cycle of Aeroengine Mainshaft Bearing Based on Digital Twin

Yan³

et al. 2023

Processes

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“…The axial runout error can be reduced by using electric spindles or air-bearing spindles. Also, better grinding properties can be achieved by a structured grinding wheel [15] or an elastic bonded grinding wheel [16]. Condition monitoring of the grinding wheel [17] for the timely dressing of the grinding wheel also facilitates better profile deviations.…”

Section: Double Roller-guide Involute Lapping Instrumentmentioning

confidence: 99%

Gear involute artifacts with sub-micron profile form deviations: manufacture and new design

Ling,

et al. 2023

Metrology and Measurement Systems

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Gear involute artifact (GIA) is a kind of calibration standard used for traceability of involute metrology. To machine GIAs with sub-micron profile form deviations, the effect on the involute profile deviations caused by the geometric deviations and 6-DoF errors of the machining tool based on the double roller-guide involute rolling generation mechanismwas analysed.At the same time, a double roller-guide involute lapping instrument and a lapping method for GIAs was proposed for lapping and in-situ measuring the gear involute artifacts. Moreover, a new GIA with three design base radii (50 mm, 100 mm, and 131 mm) was proposed for more efficient calibration and was machined with profile form deviations of 0.3 μm (within evaluation length of 38 mm, 68 mm, 80 mm, respectively, measured by the Chinese National Institute of Metrology), and the surface roughness Ra of the involute flanks was less than 0.05 μm. The research supports small-batch manufacturing for high-precision GIAs.

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“…The above studies show that surface-structured grinding wheels can bring grinding fluid into the grinding arc [14][15][16] and have unique advantages in enhancing the heat transfer performance of the grinding arc, which is a current research hotspot. Among the many types of grinding wheel surface structure, the LSG-GW has a 'well-defined' contact zone and heat exchange zone.…”

Section: Introductionmentioning

confidence: 99%

Study on flow field and convective heat transfer characteristics in grinding zone of large spiral angle flow disturbance grooved wheel

Mao,

Liu,

Jiang

et al. 2023

Int J Adv Manuf Technol

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In view of the high specific removal energy, high heat generation rate, low heat transfer efficiency, easy to produce local high temperature and grinding burns, new macrostructured grinding wheel forms were proposed, namely, Large Spiral-angle Grooved Grinding Wheels (LSG-GW, β>85°) and Large Spiral-angle flow Disturbance Grooved Wheels (LSDG-GW). Considering the influence of wheel parameters, groove parameters and process parameters, an analytical model of the airflow field in the wedge area and contact area of LSG-GW was established. Analytical model of gas-liquid two-phase flow field and theoretical model of convective heat transfer coefficient distribution in heat transfer channels were established.The results showed that increasing the groove width, groove depth and the spiral angle can reduce the pressure of the flow field in the air barrier layer and make it easier for the grinding fluid to enter the grinding contact area. The LSDG-GW further reduces the grinding fluid back flow and side flow intensity, proving that the flow disturbance structure can bring in more grinding fluid into the grinding contact area. A theoretical model for the distribution of convective heat transfer coefficient in the grinding contact area was derived, and the analysis results proved that the flow disturbance structure can significantly improve the convective heat transfer coefficient in the grinding contact area. The LSDG-GW, as a new macro surface structured grinding wheel, has a very promising application in the high efficiency and high precision grinding process of difficult-to-machine alloy materials.

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The effects of structured grinding wheel designed parameters on the geometries of ground structured surfaces

Abstract: Noname manuscript No.

Cited by 9 publications

References 29 publications

Application of Life Cycle of Aeroengine Mainshaft Bearing Based on Digital Twin

Application of Life Cycle of Aeroengine Mainshaft Bearing Based on Digital Twin

Gear involute artifacts with sub-micron profile form deviations: manufacture and new design

Study on flow field and convective heat transfer characteristics in grinding zone of large spiral angle flow disturbance grooved wheel

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