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

Transchel, Robert; Heini, Flurin; Stirnimann, Josef; Kuster, Friedrich; Leinenbach, Christian; Wegener, Konrad

doi:10.1016/j.ijmachtools.2013.08.001

Cited by 19 publications

(4 citation statements)

References 24 publications

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“…This context demonstrates the beneficial properties of periodic structures and abrasive features with a positive clearance angle on the cutting conditions and the resulting workpiece surface finish. Similar conclusions can be drawn from the work of Transchel et al [10][11][12] on the influence of the clearance angle on the cutting characteristics of brazed single diamond grains. Here, a significant reduction of the specific cutting force is achieved for diamond grains with a positive clearance angle.…”

Section: State Of Researchsupporting

confidence: 87%

Cutting characteristics of electroplated diamond tools with laser-generated positive clearance

et al. 2015

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Section: State Of Researchsupporting

confidence: 87%

Cutting characteristics of electroplated diamond tools with laser-generated positive clearance

et al. 2015

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“…Because a pronounced effect of the grain orientation and the clearance angle on the resulting cutting forces was previously observed [cf. (Ref[11][12][13]], only grains with explicitly positive clearance angles and for which the edge of the diamond functioning as cutting edge was positioned perpendicular to the material flow direction as shown inFig. 2(b)were selected.…”

mentioning

confidence: 99%

Microstructure and Mechanical Performance of Cu-Sn-Ti-Based Active Braze Alloy Containing In Situ Formed Nano-Sized TiC Particles

Leinenbach

Transchel

Gorgievski

et al. 2015

J. of Materi Eng and Perform

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A Cu-Sn-Ti-based active brazing filler alloy was in situ reinforced with nanosized TiC particles by adding different amounts of a cellulose nitride-based binder. The TiC particles emanate from a reaction of the Ti within the filler alloy with the carbon from the binder that does not decompose completely during heating. The correlation between the microstructure and mechanical performance was studied. In addition, the effect of different binder amounts on the shear strength and cutting performance of brazed diamond grains was studied in shear tests and single grain cutting tests. The results clearly show that the mechanical performance of the brazed diamond grains can be improved by the formation of TiC particles. This is attributed to particle strengthening of the filler alloy matrix as well as to the decreasing grain size and more homogeneous distribution of the (Cu,Sn) 3 Ti 5 phase with increasing amount of binder.

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“…The positive influence of a clearance angle on the cutting efficiency of abrasive grains [9] can the exploited by the laser machining of the abrasive grains on electroplated grinding tools. Dold [10] detailed a sequential laser process where the electroplated diamond grinding wheel is first dressed to the desired grain protrusion, before clearance and rake faces are generated on the diamond grains.…”

Section: State Of Researchmentioning

confidence: 99%

Laser Touch Dressing of Electroplated CBN Grinding Tools

et al. 2016

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In this paper, an alternative process for dressing electroplated cBN grinding wheels using an ultrashort pulsed laser is presented. Other than abrasive grains dressed conventionally, laser touch dressed cBN grains exhibit cutting edges that have partially defined geometric elements with a positive clearance angle. Grinding experiments, including long-term tests, are performed on hardened steel, for a comparative study on the performances of laser dressed and conventionally dressed tools. While the processing forces are slightly higher for the laser touch dressed tools, the roughness of the ground surface is improved.

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

Cited by 19 publications

References 24 publications

Cutting characteristics of electroplated diamond tools with laser-generated positive clearance

Cutting characteristics of electroplated diamond tools with laser-generated positive clearance

Microstructure and Mechanical Performance of Cu-Sn-Ti-Based Active Braze Alloy Containing In Situ Formed Nano-Sized TiC Particles

Laser Touch Dressing of Electroplated CBN Grinding Tools

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