Mechanism of Cutting Edge Chipping and Its Suppression in Diamond Turning of Copper

Tanaka, Hiroaki; Shimada, Shoichi; Higuchi, Masahiro; Yamaguchi, Tomomi; Kaneeda, Toshiaki; Obata, Kazushi

doi:10.1016/s0007-8506(07)60047-x

Cited by 25 publications

(10 citation statements)

References 3 publications

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“…9 shows that the strength decreases and then increases as the contact time increases. The change in strength with polishing can be explained as follows [1]. The reduction of strength at the early stage of polishing originates from the lengthening of cracks existing on the diamond surface, because the thermally activated carbon atoms, which jump out of the crack tip, are oxidized and removed as CO or CO 2 .…”

Section: Resultsmentioning

confidence: 99%

“…Mechanical polishing, however, produces microcracks on the diamond surface because of high polishing pressure and elevated temperatures. In related research, Tanaka et al found that these microcracks lengthened as a result of thermo-chemical erosion by oxygen at the microcrack tips, and the resultant microfractures reduced the strength of the diamond [1]. This is thought to be the source of chippings that occur on cutting edges during diamond turning processes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Polishing of single point diamond tool based on thermo-chemical reaction with copper

Furushiro

Higuchi

Yamaguchi

et al. 2009

Precision Engineering

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polishing of single point diamond tool based on thermo-chemical reaction with copper

Furushiro

Higuchi

Yamaguchi

et al. 2009

Precision Engineering

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“…Therefore, the movement of the diamond tool in the cutting depth direction is a step at a regular time intervals and can cause a micro impact load (MIL) to the diamond tool in the cutting process. The step amplitude is determined by Da p according to equations ( 4) and (5). From the analysis above, it is known that feed rate is a main cutting parameter affecting A c and Da p as H s is generally a constant in the cutting process.…”

Section: Experimental Conditionsmentioning

confidence: 99%

“…Chemical aspects of diamond tool wear were researched by Paul et al [4]. The effect of oxygen atmosphere on tool wear was analysed by Shimada's group [5,6]. Born and Goodman surveyed empirically the influence of machining parameters on tool wear [7].…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the effects of feed rate and tool geometries on tool wear in diamond cutting of sinusoidal microstructured surfaces

Zhou

Zhang

Huang

et al. 2011

Proceedings of the Institution of Mechanical Engineers, Part B:

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Tool wear in diamond cutting of sinusoidal microstructured surfaces with a fast tool servo (FTS) may be quite different from that in the conventional diamond turning process, as the depth of cut changes periodically along the contour of the cutting surface and diamond tools with a sharp point tip are used. According to a theoretical analysis of the machining of sinusoidal surfaces, feed rate is a key cutting parameter affecting tool wear. In the current paper, a series of controlled cutting tests of LY12 aluminium alloy with different feed rates was executed on a two-axis bench-type ultra-precision turning machine equipped with an FTS device. The machined surface quality and dynamic cutting forces were measured and analysed. Tool wear patterns were investigated for various feed rates. It is essential to discuss the cutting stress borne by the diamond tool in the cutting of sinusoidal surfaces, since transformation of diamond to graphite induced by high pressure has been proved in previous works. The maximum normal stress acting on the rake face was deduced from measured dynamic cutting forces. Micro-Raman spectroscopy was adopted for analysing materials on tool tips. The experimental results showed that graphite appeared at the tool tip for some feed rates in the cutting of sinusoidal surfaces. The effects of tool geometry on tool wear are also shown.

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“…It has become the main machining method for some soft, frangible, and deliquescence optical crystal [5,6]. Besides, soft metals, such as aluminum and copper, are machined by SPDT generally [7,8].…”

Section: Introductionmentioning

confidence: 99%

Research on surface topography in ultra-precision flycutting based on the dynamic performance of machine tool spindle

An²,

Wang

et al. 2016

Int J Adv Manuf Technol

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The dynamic performance of ultra-precision cutting machine tools is an important factor for its machining accuracy. To improve the precision of the machine tool, a surface topography model is built in this paper and the tool path during the cutting process is achieved by dynamic finite element analysis (DFEA) of the air spindle in ANSYS, surface topography is obtained using MATLAB simulation by combing the model with the tool path, and an experiment is carried out for validation. Results show the simulation surface is highly consistent with the experimental result. Dynamic performance of the spindle is the main factor for texture generation, and optimization of spindle is investigated, DFEA of the optimized spindle shows better performance, and the connection mode between diamond tool and cutter head should be further studied.

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Mechanism of Cutting Edge Chipping and Its Suppression in Diamond Turning of Copper

Cited by 25 publications

References 3 publications

Polishing of single point diamond tool based on thermo-chemical reaction with copper

Polishing of single point diamond tool based on thermo-chemical reaction with copper

Experimental study on the effects of feed rate and tool geometries on tool wear in diamond cutting of sinusoidal microstructured surfaces

Research on surface topography in ultra-precision flycutting based on the dynamic performance of machine tool spindle

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