On the influence of single grit micro-geometry on grinding behavior of ductile and brittle materials

Axinte, Dragoş; Butler-Smith, Paul; Akgun, C.; Kolluru, Kiran

doi:10.1016/j.ijmachtools.2013.06.002

Cited by 144 publications

(39 citation statements)

References 10 publications

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“…It is favourable to decrease the rubbing and ploughing in the grinding zone and to ensure stable conditions of the cutting process with abrasive grains. Reciprocal contribution of each state is dependent on properties of the workpiece, the grinding parameters, the friction condition between abrasive grain and the workpiece, and the shape of the grains [21,22].…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of the grinding wheel with aggregates of grains in grinding of Ti-6Al-4V titanium alloy

Kacalak

Lipiński

Bałasz

et al. 2017

Int J Adv Manuf Technol

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The results of grinding are highly dependent on conditions of workpiece removal process. The material is removed by an unspecified number of abrasive grains of irregular shape and random distribution on the grinding wheel active surface. The interaction between the abrasive grain and the workpiece can be divided into three stages: (i) rubbing, (ii) ploughing and (iii) chip formation. Reciprocal contribution of each stage is dependent on the properties of the workpiece, the grinding parameters, the friction condition between the abrasive grain and the workpiece and the shape of the grains. In the article, the results of numerical and experimental process in the analysis of grinding of Ti-6Al-4V titanium alloy, using a conventional grinding wheel and a newly developed grinding wheel with aggregates of grains, were presented. The analysis of influence of the geometric parameters of the abrasive aggregates and the abrasive grains on the effectiveness of the workpiece removal process is presented. The effects of the geometrical parameters of grains and abrasive aggregates in direction of motion as well as in transversal direction on the size of ridges were determined. It has been observed that increase of the length of sideway material displacement results in the decrease of ridge formation. The results of a numerical analysis were confirmed by experimental research. The analysis of the impact of utilization of abrasive aggregates on the grinding forces, grinding-specific energy and surface roughness was performed. The impact of abrasive aggregates on the decrease of grinding forces and specific energy and the increase of quality of ground surface was observed.

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Section: Introductionmentioning

confidence: 99%

Performance evaluation of the grinding wheel with aggregates of grains in grinding of Ti-6Al-4V titanium alloy

Kacalak

Lipiński

Bałasz

et al. 2017

Int J Adv Manuf Technol

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“…Outlining the position of the flank face and the clearance angle, respectively towards the cutting direction as a significant factor possessing, a high sensitivity towards the dimensions of resulting process forces and structural alterations are observed. In the newer past, single grain cutting operations were mostly carried out with a clearance angle of nominally 01, for instance by Buhl [28,20] and Vargas [21] processing hardened steel as well as recently by Rabiey et al [22] who focussed his research on machining dental ceramics and Axinte et al [23] processing copper and sapphire. All of them do not really consider that in the vicinity of clearance angle 01 the sensitivity of forces and material behaviour are extreme and thus a more precise measurement of the actual clearance angle needs to be provided.…”

Section: Introductionmentioning

confidence: 99%

Influence of the clearance angle on the cutting efficiency of blunt, octahedral-shaped diamonds in an active filler alloy

Transchel

Heini

Stirnimann

et al. 2013

International Journal of Machine Tools and Manufacture

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“…The circular base frustum grit has been experimentally verified that it leads to greater specific grinding force than those grits with square and triangular shapes in brittle material grinding [50]. With the characteristic of circular grit, the ideal cone grit with a sharp apex angle is used in the present work.…”

Section: Methodsmentioning

confidence: 99%

Subsurface damage in high-speed grinding of brittle materials considering kinematic characteristics of the grinding process

Wang

Fang

Chen

et al. 2015

Int J Adv Manuf Technol

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Subsurface damage (SSD) induced during abrasive grain machining process strongly influences the mechanical strength and subsurface quality of the brittle components. Therefore, it is meaningful to study the relationship between SSD and grinding parameters. The methods of theoretical analysis, numerical simulation and experimental testing are used to analyze the SSD of brittle materials in high-speed grinding. The results of numerical simulation are consistent with those of theoretical analysis and experimental testing, which indicates that the present numerical method is reasonable. The investigation focuses on the effects of wheel speed, grinding depth, and apex angle of the abrasive grain on the SSD of brittle materials. It shows that when maximum undeformed chip thickness (M-UCT) is greater than the critical thickness of brittle fracture, the material removal is mainly in the brittle mode. A high wheel speed is beneficial to achieving a good subsurface quality. However, under certain conditions, an ultra-high wheel speed with quite small grinding depth is not helpful in SSD control. Due to the kinematic characteristics of the grinding process, the effect of grinding depth on SSD is weaker than that of wheel speed and a smaller abrasive grain is of advantage to subsurface quality. In addition, the grinding force is one of the major factors influencing the subsurface quality.

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On the influence of single grit micro-geometry on grinding behavior of ductile and brittle materials

Cited by 144 publications

References 10 publications

Performance evaluation of the grinding wheel with aggregates of grains in grinding of Ti-6Al-4V titanium alloy

Performance evaluation of the grinding wheel with aggregates of grains in grinding of Ti-6Al-4V titanium alloy

Influence of the clearance angle on the cutting efficiency of blunt, octahedral-shaped diamonds in an active filler alloy

Subsurface damage in high-speed grinding of brittle materials considering kinematic characteristics of the grinding process

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