Establishment of dynamic grinding force model for ultrasonic-assisted single abrasive high-speed grinding

Lei, Xiaofei; Xiang, Daohui; Peng, Peicheng; Liu, Gaofeng; Li, Bo; Zhao, Bo; Gao, Guofu

doi:10.1016/j.jmatprotec.2021.117420

Cited by 46 publications

(12 citation statements)

References 11 publications

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“…Its benefits include high-temperature resistance, low density, high strength, resistance to chemical corrosion, resistance to wear, and the lack of deterioration of any of these features over time [6][7][8][9]. Simultaneously, because of the toughening effect of fiber, the fracture toughness of CMCs is significantly improved, so it has a wide range of application prospects in gas turbine turbines, engine combustion chambers, aircraft thermal protection systems, high-end automobile brake systems, nuclear energy, and other fields [10,11].…”

Section: Introductionmentioning

confidence: 99%

Experimental and mechanism study of Cf/SiC undergoing longitudinal-torsional ultrasonic vibration assisted grinding

Wang¹,

Song³

et al. 2023

Preprint

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Ceramic matrix composites (CMCs) with carbon fiber reinforcement are widely used in the aircraft industry and other important defense industries due to their superior performance. To investigate the factors affecting the grinding force and surface quality of 2.5D needled Cf/SiC material, the motion equation of abrasive particles under longitudinaltorsional ultrasonic vibration was established using kinematic analysis, and the trajectory analysis of abrasive particles was carried out using MATLAB simulation. The grinding force, surface topography, and roughness of conventional grinding (CG) and longitudinal-torsional ultrasonic vibration-assisted grinding (L-TUVAG) were analyzed and evaluated to explore the process mechanism of Cf/SiC material damage. An improved processing technique and parameters for processing were proposed. The findings show that the principal pathways for material removal during grinding are matrix breaks, interfacial debonding, fiber damage, and fractures. Grinding parameters have a significant influence on the quality of the processing surface. The surface topography steadily improves during the grinding process as the grinding wheel speed increases. However, the feed speed and grinding depth have a reverse impact. High-speed micro-grinding can significantly improve grinding efficiency and surface processing quality. L-TUVAG has a lower grinding force than CG by a factor of 16.16% to 35.82%, and the surface processing quality is correspondingly better. These discoveries enable the prediction of surface morphology and roughness characteristics of materials. And provide important technological support for improving the processing quality of CMCs.

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Section: Introductionmentioning

confidence: 99%

Experimental and mechanism study of Cf/SiC undergoing longitudinal-torsional ultrasonic vibration assisted grinding

Wang¹,

Song³

et al. 2023

Preprint

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“…Aluminum-based silicon carbide composite materials are increasingly used in the field of turbine part material preparation due to their various advantages, such as high hardness, low weight, and wear resistance [ 1 , 2 ]. Traditional grinding, milling, and other mechanical processing technologies cannot be processed efficiently and with high quality; however, ultrasonic-assisted processing technology, which is similar to “micro-grinding”, performs remarkably well on hard, brittle, and difficult-to-machine materials and can generate better workpiece surface quality while utilizing lower grinding force [ 3 , 4 , 5 , 6 ]. Electrolytic machining (ECM) is suitable for the processing of curved surfaces and tiny holes of conductive materials because of its non-contact force and high processing efficiency, but electrical discharge machining (EDM) is often selected for the processing of non-conductive materials [ 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Vibration Direction on Two-Dimensional Ultrasonic Assisted Grinding-Electrolysis-Discharge Generating Machining Mechanism of SiCp/Al

Chen

Zhu

2023

Materials

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This study proposes the mechanism of two-dimensional ultrasonic assisted grinding- electrolysis-discharge generating machining (2UG-E-DM). It analyzed the influence of vibration directions on grinding characteristics and surface morphology through the motion simulation of an abrasive. Comparative experiments with different vibration directions verified the effect of ultrasonic assistance on the weakening of the grinding force, the widening of the surface pits, and the leveling of the surface morphology of SiCp/Al composites. Simulation analysis of a single abrasive particle verified the test results. The results of machining tests at different amplitudes showed that as the workpiece and tool amplitude increased, the grinding force of the normal force decreased faster than that of the tangential force. The effect of surface electrolysis discharge machining was significant, and the number of exposed particles increased, but the residual height of the surface and the surface roughness were reduced by vibration grinding. When the two-dimensional amplitude was increased to 5 μm, the axial and tangential vibrations increased the grinding domain, and the dragging and rolling of the reinforced particles significantly reduced the surface roughness, which obtained good surface quality.

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“…Dai et al 10 investigated the effects of machining parameters such as depth of cut, grinding wheel speed, and ultrasonic vibration amplitude on surface finish by performing ultrasonic endface grinding experiments on SiC ceramics, providing a new way to achieve mirror surface machining of SiC ceramics using ultrasonic grinding. Lei et al 11 established a dynamic grinding force model for ultrasonic-assisted single abrasive high-speed grinding based on the relationship between abrasive wear and time, and provided a new idea for the prediction and control of grinding force at any moment during the whole grinding process by ultrasonic-assisted high-speed grinding of QT500-7 ductile iron with single abrasive grains experimentally.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on ultrasonic vibration assisted grinding of GCr15SiMn bearing steel

Ma,

Xiang,

Lei

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

Self Cite

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Many problems of GCr15SiMn high-carbon chromium bearing steel have been found in the ordinary grinding (OG) process. Aiming at the problems of high grinding force, low residual compressive stress and low surface quality, ultrasonic machining technology is combined with OG. The test of ultrasonic vibration assisted grinding (UVAG) GCr15SiMn high carbon chromium bearing steel is carried out. The residual stress, surface roughness, grinding force, and surface morphology are analyzed by changing machining parameters. The research showed that as the grinding depth and feed speed become larger, the grinding force increased, when the spindle speed rises, the grinding force becomes smaller. In the test range, with the ultrasonic amplitude from small to large, the grinding force from large to small. The ultrasonic grinding force is 27.8% lower than that of OG. The surface roughness increases with increasing grinding depth and feed speed and decreases with increasing spindle speed and ultrasonic amplitude, and at an amplitude of 6 μm, the surface roughness is reduced by 27% compared to OG. When the feed speed and grinding depth are lowered or the ultrasonic amplitude is increased, the surface residual compressive stress is increased. Compared to OG, it is increased by more than 13.5% under the same parameters. At the same time, the phenomenon of burrs and surface tears can be reduced, and the surface quality of the workpiece becomes better.

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Establishment of dynamic grinding force model for ultrasonic-assisted single abrasive high-speed grinding

Cited by 46 publications

References 11 publications

Experimental and mechanism study of Cf/SiC undergoing longitudinal-torsional ultrasonic vibration assisted grinding

Experimental and mechanism study of Cf/SiC undergoing longitudinal-torsional ultrasonic vibration assisted grinding

Effect of Vibration Direction on Two-Dimensional Ultrasonic Assisted Grinding-Electrolysis-Discharge Generating Machining Mechanism of SiCp/Al

Experimental study on ultrasonic vibration assisted grinding of GCr15SiMn bearing steel

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