Tailoring of diamond machinable coating materials

Kohlscheen, J.; Stock, H.‐R.; Mayr, P.

doi:10.1016/s0141-6359(01)00109-x

Cited by 9 publications

(4 citation statements)

References 30 publications

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“…Due to a significant amount of material adhesion on the tool and the high chemical reactivity of titanium alloy, diamond could dissolve in the titanium matrix, convert into graphite or react with titanium, and crater wear was caused with the chips flowing away. Meanwhile, as the low thermal conductivity of titanium alloy and high thermal conductivity of diamond, the cutting heat mostly concentrates on the tool tip [6], which provides the condition for reaction of titanium [7] and raises the possibility of diamond graphitization [8]. Material adhesion also increases the rate of tool wear and the size of the crater as material adheres are removed over time.…”

Section: Resultsmentioning

confidence: 99%

Experimental Study on the Wear of Single Crystal Diamond Tools in Ultra-Precision Cutting of Titanium Alloy

Huang

Zhou

2016

KEM

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In this paper, ultra-precision cutting experiments were carried out with titanium alloy material Ti-6A1-4V by using single crystalline diamond tools. Experimental results show that the wear patterns of rake face of diamond tools are crater wear and groove wear, the wear patterns of flank face of diamond tools are uniform wear and groove wear, and the wear mechanisms of single crystalline diamond tool are chemical wear and mechanical wear. Graphitization and microcosmic cleavage of the diamond tools occur in the cutting process.

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Section: Resultsmentioning

confidence: 99%

Experimental Study on the Wear of Single Crystal Diamond Tools in Ultra-Precision Cutting of Titanium Alloy

Huang

Zhou

2016

KEM

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“…With increasing the nickel content to 24 at.‐% (Ti 71 Ni 24 N 5 ) the chemical wear resistance significantly improves. This could be explained by the relatively high content of nickel, because research in Ti 60 Ni 40 coatings showed that these did not react with diamond 10. The non‐reactivity is ascribed to the covalent bonding in NiTi x which had been revealed by XPS.…”

Section: Resultsmentioning

confidence: 99%

“…A thermal contact test, based on the experiments of Ikawa and Tanaka9 and described by Kohlscheen et al,7,10 was performed to evaluate the chemical wear of diamond. The experiment was carried out in a vacuum chamber with a base pressure of 0.1 mPa.…”

Section: Experimental Partmentioning

confidence: 99%

Development of Diamond Machinable Films by Reactive Magnetron Sputtering

Schulz

Giesselbach

Dießelberg

et al. 2007

Plasma Process. Polym.

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Thin Ni‐doped titanium nitride (Ti‐Ni‐N) films were deposited on X42Cr13 steel samples by reactive magnetron sputtering. By varying the nitrogen gas flow and target composition, films with different nickel and nitrogen contents were grown with a plastic universal hardness between 7.2 and 17.2 GPa. SEM analysis revealed amorphous, fine crystalline and columnar structure depending on the chemical composition. Furthermore, a contact test was carried out to investigate the reactivity between the film surface and single crystalline diamond. Analysis of the films and the diamond by SEM and EDX showed especially that films with an average nitrogen and nickel content did not react with diamond.

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“…For the sake of reducing the oxidization wear, Shimada et al (2000) performed the machining operations in the oxygen-free atmosphere. To be different, enriching the covalent bonds of the machining materials is an effective and promising solution to avoid the chemical reaction between diamond tool and the machining materials (Kohlscheen et al, 2002). In order to improve tool wear resistance, Yuan et al (1992) selected the desirable rake and flank faces according to the different frictional behaviours of diamond crystal planes.…”

Section: Introductionmentioning

confidence: 99%