Dressing methods of superabrasive grinding wheels: A review

Deng, Hui; Xu, Zhou

doi:10.1016/j.jmapro.2019.06.020

Cited by 100 publications

(35 citation statements)

References 120 publications

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“…During grinding, grit wear can induce higher grinding force and higher temperature in the grinding zone. To keep the wheel sharpness and grit size, the mechanical dressing method was adopted [23]. Before each series of the experiment, the grinding wheel was dressed by a multigrit diamond dressing tool with the dressing depth of 0.03 mm.…”

Section: Methodsmentioning

confidence: 99%

“…Wang et al [22] proposed an analytical model for calculating the distribution of surface stress during grinding of bevel gear which was not developed in the previous models, taking into account the parameters of the process and two main factors to cause the surface residual stress, such as mechanical forces and grinding heat. Deng and Xu [23] reviewed and compared different methods of super-abrasive grinding wheel dressing in terms of efficiency, dressing accuracy, and processing cost. e review reported that, currently, the method of mechanical grinding wheel dressing is still the most used method because it is cheap, simple to operate, and mature technology.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modeling of Vibration Condition in Flat Surface Grinding Process

Gasagara

Jin

Uwimbabazi

2020

Shock and Vibration

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This article presents a new model of the flat surface grinding process vibration conditions. The study establishes a particular analysis and comparison between the influence of the normal and tangential components of grinding forces on the vibration conditions of the process. The bifurcation diagrams are used to examine the process vibration conditions for the depth of cut and the cutting speed as the bifurcation parameters. The workpiece is considered to be rigid and the grinding wheel is modeled as a nonlinear two-degrees-of-freedom mass-spring-damper oscillator. To verify the model, experiments are carried out to analyze in the frequency domain the normal and tangential dynamic grinding forces. The results of the process model simulation show that the vibration condition is more affected by the normal component than the tangential component of the grinding forces. The results of the tested experimental conditions indicate that the cutting speed of 30 m/s can permit grinding at the depth of cut up to 0.02 mm without sacrificing the process of vibration behavior.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modeling of Vibration Condition in Flat Surface Grinding Process

Gasagara

Jin

Uwimbabazi

2020

Shock and Vibration

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“…The grinding wheel was submerged in the still water, and the density of water was 1000 kg/m 3 . p was the equivalent of 1 atm at infinity and was about 1.013Â10 5 Pa, and the water vaporization pressure (p v ) was 2.3 times than atmospheric pressure. Substituting the above parameters into equation 13, it can be concluded that the collapse time range of spherical cavitation in the ultrasound-aided ELID area was 1.2587-5.3048 ms.…”

Section: Influence Of the Ultrasonic Vibration On Elid Grindingmentioning

confidence: 99%

“…3 Although the laser dressing overcome the problem in mechanical finishing, the higher investment and requirement for environment and protection was not avoided. 4,5 Electrolytic in-process dressing (ELID) is particularly suitable for precision grinding of metal binders, ultrafine granularity and ultra-hard grinding wheels, which solves the problem of continuous sharpness of metal ultrafine ultra-hard grinding wheels, but it is less efficient. 6,7 In this case, the relevant scholars put forward to composite two or more in these finishing ways, being to help each other with respective advantages, such as electrospark-induced controllable combustion and turning dressing, 8 chemical–mechanical dressing, 9 dry electrical discharge-assisted dressing (dry-ECD), 10,11 grinding wheel mechanical dressed assisted by ultrasonic vibration, 12 laser-ultrasonic vibration synergic dressing, 13 EDM-chemical dressing, 14 EDM-ultrasonic vibration dressing, 15 ELID/EDM dressing, 16 ultrasound-assisted laser trepanning, etc.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of online dressing for micro-diamond grinding wheel during the ultrasound-aided electrolytic in-process dressing grinding

Fan

Mei

Zhao

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part E:

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A high-precision continuous dressing technology, namely ultrasound-aided electrolytic in-process dressing method, was proposed in this paper, aiming at overcoming the difficulty in continuous dressing for fine diamond wheel during the super mirror processing, such as optics and aeronautics. Firstly, the influence of high-frequency ultrasonic vibration on electrolysis was analyzed on the basis of the mechanism of electrolysis. Then, the compared tests between the common electrolytic in-process dressing grinding and the ultrasound-aided electrolytic in-process dressing grinding of the grinding wheel were employed to observe the effect of dressing and the state of abrasive particle. It was found experimentally that under the latter dressing, the better dressing effect could be gained, and the number of abrasive particle per unit area, the sharpness of abrasive and the average grain protrude height were improved; meanwhile, the distribution of grains become more uniform. In addition, compared with the former dressing, the average distance between grains was decreased, and the microscopic roughness of grinding wheel physiognomy was increased in the latter dressing. Finally, the grinding experiment was carried out to illustrate the advantages of the ultrasound-aided electrolytic in-process dressing grinding. The experimental results revealed that the removal rate and machining surface quality were increased compared with the common electrolytic in-process dressing grinding.

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“…In the grinding area, grinding wheel adhesion is easily caused by insufficient cooling fluid supply, high local temperature and poor lubrication conditions. The adhesion of the grinding wheel further increases the grinding temperature and causes abnormal wear of the grinding wheel, which affects the grinding quality and reduces the service life of the grinding wheel [8,9].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study and Numerical Simulation of the Intermittent Feed High-Speed Grinding of TC4 Titanium Alloy

Jiao

Zhou

Deng

2019

Metals

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This paper proposes intermittent feed high-speed grinding, which shows considerable advantages in terms of reducing grinding temperature, relieving grinding wheel blockage and improving workpiece surface integrity. In this grinding, the continuous feed mode of the workpiece is changed into the normal feed + fast retreat reciprocating feed mode by a fast linear feed worktable. By reasonably setting the normal feed distance of single grinding, the action time of the grinding wheel and workpiece is reduced, so that the grinding heat transfer process does not reach a stable state, reducing the grinding temperature during single grinding. Besides this, the surface temperature is cooled to nearly room temperature and the grinding wheel is flushed by the timely retreating of the grinding wheel to allow the grinding fluid to enter the grinding zone fully, which greatly reduces the phenomenon of heat accumulation and grinding wheel loading. An intermittent feed high-speed grinding experiment on Ti-6Al-4V (TC4) titanium alloy was systematically carried out, and the influence of the grinding parameters on grinding force and grinding temperature was deeply analyzed. The instantaneous grinding temperature field and thermal stress field of TC4 titanium alloy in intermittent feed high-speed grinding were constructed with the finite element method. The surface morphology of the grinding wheel and TC4 titanium alloy specimens after intermittent feed grinding were analyzed and were compared with those after traditional continuous grinding. It was found that the curves of the grinding force and temperature varied with time in the process of machining, consisting of many “pulse” peaks. Under the same grinding parameters, the magnitude of the grinding force is the same as that of continuous grinding. In a certain range, the grinding temperature is greatly affected by the single feed distance and the interval time. The numerical simulation results are in good agreement with the experimental results, and the error is controlled within 12%. Compared with traditional high-speed grinding, under the same process parameters, the grinding temperature is greatly reduced, the surface integrity of the workpiece is better, and the clogging of the grinding wheel is greatly reduced.

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Dressing methods of superabrasive grinding wheels: A review

Cited by 100 publications

References 120 publications

Modeling of Vibration Condition in Flat Surface Grinding Process

Modeling of Vibration Condition in Flat Surface Grinding Process

Mechanism of online dressing for micro-diamond grinding wheel during the ultrasound-aided electrolytic in-process dressing grinding

Experimental Study and Numerical Simulation of the Intermittent Feed High-Speed Grinding of TC4 Titanium Alloy

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