Research on Elliptic Vibration Dressing of Large-Grit Bronze-Bonded Diamond Grinding Wheel

The Large-grit bronze-bonded diamond grinding wheel was shaped employing a diamond dresser with elliptic ultrasonic vibration assistance, to solve problems such as high cost, low dressing speed and low accuracy. And the truing and conditioning performance of this new method was discussed for its effectiveness. Experimental results showed that the roundness error of elliptic vibration dressed diamond grinding wheel is less, and the bond tail was cut shorter and the chip capacity became larger than that of mechanical dressed one. The SEM observation showed for the present dressing method the material removal mechanism is ductile removal of bond material and micro breakup of gains and this method can perform truing of large-grit diamond grinding wheel as well as conditioning in one step.

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Research on the Topography Features of the Densely Bonded Diamond Grinding Wheel Dressed by Elliptical Ultrasonic Vibration

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.188.330 ◽

2011 ◽

Vol 188 ◽

pp. 330-335

Author(s):

Bo Zhao ◽

C.Y. Zhao ◽

G.F. Gao

Keyword(s):

Ultrasonic Vibration ◽

Material Removal ◽

Bonding Agent ◽

Grinding Wheel ◽

Removal Mechanism ◽

Material Removal Mechanism ◽

Wheel Surface ◽

Dressing Method ◽

Diamond Grinding Wheel ◽

Abrasive Grains

In this paper, on the influence of different dressing methods, such as elliptical ultrasonic vibration, on the grinding wheel bonded delta, the morphology of abrasive grains of wheel, the protrusion height and the grinding wheel topography was studied by experiment. The experiment shows that the abrasive grains of grinding wheel surface dressed by elliptical ultrasonic vibration are great in protrusion height and trench depth, and the bonded delta grain after grinding is narrow, short, and irregular with significant reduced semi-surrounded area compared with by ordinary dressing method. The abrasive grains of metal-bonded diamond grinding wheel surface dressed by elliptical ultrasonic vibration are basically intact, and due to the high-speed collision between abrasive grains, local micro-break is easy to occur on the abrasive grains to form multiple micro-cutting edges. The abrasive grains of grinding wheel surface dressed by ordinary dressing method are fractured and broken, while that of resin-bonded grinding wheel surface have a high ratio to be loose and shedding. For the metal or resin-bonded grinding wheel surface dressed by elliptical ultrasonic vibration, its material removal mechanism may primarily be the removal of bonding ductility and the fine-crushing of abrasive grains; for the metal-bonded grinding wheel surface dressed by ordinary method, its material removal mechanism may primarily be the fracture and break of abrasive grains, secondly be the fracture of bonding agent; and for the resin-bonded grinding wheel surface, its material removal mechanism may mainly be the looseness and shedding of abrasive grains caused by the fracture of bonding agent, secondly be the fracture of abrasive grains. Compared with ordinary dressing method, elliptical ultrasonic vibration dressed abrasive grains are dense at shaft and sparse in periphery, with a large quantity of static effective abrasive grains, great protrusion height and an excellent nature of contour.

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Experimental Study on Performance of Monolayer Brazed Diamond Wheel through Chemical-Mechanical Dressing

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.325.208 ◽

2011 ◽

Vol 325 ◽

pp. 208-212 ◽

Cited By ~ 5

Author(s):

Hong Hua Su ◽

Jiu Hua Xu ◽

Yu Can Fu ◽

Wen Feng Ding ◽

Shuai Wang

Keyword(s):

Optical Glass ◽

Ground Surface ◽

Diamond Wheel ◽

Substantial Improvement ◽

Grinding Wheel ◽

Dressing Method ◽

Diamond Grinding Wheel ◽

Diamond Grinding ◽

Before And After ◽

Ground Surface Roughness

The dressing methods of monolayer diamond tool have recently been developed increasingly because a substantial improvement of the ground surface roughness could be achieved with the dressed monolayer diamond tools. In this paper, a new dressing method was proposed, namely chemical-mechanical dressing of the diamond grits. Dressing experiments were carried out on the monolayer brazed diamond grinding wheel. The grit-tip distances from the base of wheel substrate were measured before and after dressing. Grinding experiments were conducted on K9 optical glass after each dressing interval. The roughness parameters of the ground surfaces were measured. The outcome of this attempt appeared highly encouraging, and the dressing of monolayer brazed diamond grinding wheel is effective with the chemical-mechanical dressing.

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Investigation of tribological conditions on grinding of bioceramic material using diamond grinding wheel under different cooling and lubrication environment

Journal of Manufacturing Processes ◽

10.1016/j.jmapro.2021.09.004 ◽

2021 ◽

Vol 71 ◽

pp. 550-564

Author(s):

N. Arunachalam ◽

P. Suya Prem Anand ◽

L. Vijayaraghavan

Keyword(s):

Grinding Wheel ◽

Diamond Grinding Wheel ◽

Diamond Grinding ◽

Cooling And Lubrication

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Characteristics of the Wheel Surface Topography in Ultra-precision Grinding of Silicon Wafers

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.389-390.36 ◽

2008 ◽

Vol 389-390 ◽

pp. 36-41

Author(s):

Feng Wei Huo ◽

Dong Ming Guo ◽

Ren Ke Kang ◽

Zhu Ji Jin

Keyword(s):

Surface Topography ◽

Sampling Interval ◽

Grinding Wheel ◽

Height Distribution ◽

Wheel Surface ◽

Diamond Grinding Wheel ◽

Diamond Grinding ◽

Cutting Surface ◽

Ultra Precision ◽

Cutting Direction

A 3D profiler based on scanning white light interferometry with a lateral sampling interval of 0.11μm was introduced to measure the surface topography of a #3000 diamond grinding wheel, and a large sampling area could be achieved by its stitching capability without compromising its lateral or vertical resolution. The protrusion height distribution of diamond grains and the static effective grain density of the grinding wheel were derived, and the wheel chatter and the deformation of the wheel were analyzed as well. The study shows that the grain protrusion height obeys an approximate normal distribution, the static effective grain density is much lower than the theoretical density, and only a small number of diamond grains are effective in the grinding process with fine diamond grinding wheel. There exists waviness on the grinding wheel surface parallel with the wheel cutting direction. The cutting surface of the grinding wheel is not flat but umbilicate, which indicates that the elastic deformation at the wheel edges is much larger than in the center region.

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