Study on diamond vacuum brazed with Cu-based filler metal containing Cr

Lu, Jinbin; Li, Hua; Li, Yang; Gong, Zheng; Zhong, Shengwen; Qiu, Xinkai

doi:10.1007/s00170-016-9802-y

Cited by 18 publications

(2 citation statements)

References 21 publications

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“…Cu-Sn alloy has poor wettability and bonding with diamond, but by adding a low concentration of active elements, such as Cr, Ti, etc., the chemical bonding between diamond particles and metal matrix can be significantly improved [79]. The carbide layer formed in the brazing process can act not only as a diffusion barrier to avoid the overreaction between the matrix and diamond particles, but also as a buffer zone to reduce the stress caused by the difference of lattice constant and thermal expansion coefficient between the diamond particles and the bonded matrix, so as to realize the long-term service life of diamond tools [80].…”

Section: Cu-based Brazing Alloysmentioning

confidence: 99%

Quality Evaluation System of Monolayer Brazed Diamond Tools: A Brief Review

et al. 2023

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In this article, the studies undertaken on brazed diamond tools were reviewed. The influences of the brazing alloys with different active elements on the brazing quality of brazed diamond tools are emphatically discussed. The differences in the micromorphology, friction and wear properties, and mechanical properties of brazed diamonds caused by three different brazing alloys are described in detail. The quality evaluation of brazed diamond tools is discussed from several aspects, such as the difference in microstructure of the diamond/brazing alloy interface, the friction and wear of brazed diamond tools, and the strength and residual stress of the brazing interface. Finally, relevant open questions related to the brazed diamond tools’ performance are outlined, and the future has been prospected.

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Section: Cu-based Brazing Alloysmentioning

confidence: 99%

Quality Evaluation System of Monolayer Brazed Diamond Tools: A Brief Review

et al. 2023

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“…In recent years, the methods for manufacturing single-layer diamond tools have received much attention. The main methods are brazing in a vacuum furnace and induction heating brazing [4][5][6][7]. However, both methods have their own shortcomings.…”

Section: Introductionmentioning

confidence: 99%

Laser power effects on properties of laser brazing diamond coating

Long

Liu

Dong

et al. 2020

Surface Engineering

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Effect of laser power on formation mechanism of laser brazing diamond coating has been investigated for the first time and its interface microstructure was also investigated. The BNi-2 alloy solder was utilized as braze material to fabricate brazing diamond coating on 65Mn steel substrate by using fiber laser. The laser spot was scanned at a steady speed 3 mm/s. With increase in laser power, BNi-2 alloy solder layer gradually melts and spreads fully until a laser power of 1.1 kW was reached. A further increase in laser power results in intense graphitization of the surface of the diamond grits and thermal damage. The breakage of diamond is observed when laser power is increased to 1.3 kW. Four steps are observed in laser brazing process: melting, gathering, fusing and spreading. The microstructure investigation indicates that both Cr 3 C 2 and B 4 C carbides are formed at the interface between diamond and BNi-2 alloy matrix.

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Experimental study on manufacturing of vacuum-brazed grinding tools with diamond grains

Pahmeyer,

Stribick

2024

Prod. Eng. Res. Devel.

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This work provides an experimental study on manufacturing methods for vacuum-brazed diamond grinding for edge machining of carbon fiber-reinforced polymers (CFRP). Therefore, various methods for applying active brazing alloys and diamond grains were investigated. The application methods were evaluated regarding practicability and the possibility of automation. Additionally, the samples were examined after vacuum brazing and brazing results were compared concerning method, amount and type of brazing alloy, diamond grains and binding agent. It was found that the best results could be achieved by using fluidized bed coating for diamond application and a brazing alloy containing a 15% binding agent. The method and brazing alloy were then used to produce cylindrical mounted points for grinding tests. It was possible to show that vacuum-brazed tools performed as good as commercially available electroplated tools.

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Study on diamond vacuum brazed with Cu-based filler metal containing Cr

Cited by 18 publications

References 21 publications

Quality Evaluation System of Monolayer Brazed Diamond Tools: A Brief Review

Quality Evaluation System of Monolayer Brazed Diamond Tools: A Brief Review

Laser power effects on properties of laser brazing diamond coating

Experimental study on manufacturing of vacuum-brazed grinding tools with diamond grains

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