Laser Brazing of Diamond Grits with a Ni-Based Brazing Alloy

Yang, Zhihong; Xu, Jiu Hua; Fu, Yu Can; Hong, Xu

doi:10.4028/www.scientific.net/kem.359-360.43

Cited by 12 publications

(6 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The result is consistent with Figure 9. Thermodynamically, the Gibbs free energy ΔG o the reactions of 4 B + C → B 4 C, 2 C+3 Cr → Cr 3 C 2 and 3 C + 7 Cr → Cr 7 C 3 are ΔG 0 B4C = − 72820 − 3.35 T J/ mol −1 [19], ΔG 0 Cr3C2 = − 10500 − 0.3 T J mol −1 and ΔG 0 Cr7C3 = − 14200 − 1.39 T J mol −1 , respectively [20]. Considering the BNi-2 alloy solder has a melting point of 1100°C, ΔG 0 values are negative, and thus B 4 C, Cr 3 C 2 and Cr 7 C 3 can be formed spontaneously.…”

Section: Resultsmentioning

confidence: 99%

Laser power effects on properties of laser brazing diamond coating

Long

Liu

Dong

et al. 2020

Surface Engineering

View full text Add to dashboard Cite

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.

show abstract

Section: Resultsmentioning

confidence: 99%

Laser power effects on properties of laser brazing diamond coating

Long

Liu

Dong

et al. 2020

Surface Engineering

View full text Add to dashboard Cite

show abstract

“…An excellent joint has been also successfully accomplished between the steel substrate and the filler metal. Steel substrate and the diamond abrasive grains can thus establish a tough joint thanks to the bridge effect of the "Ni-Cr" filler, an active brazing alloy, to meet needs of heavy load grinding [41].…”

Section: Nickel (Ni) Based Fillermentioning

confidence: 99%

Brazing Polycrystalline Diamonds (PCDs) in Applications of Cutting Tools: A review

Kareem,

AL-Roubaiy,

Omidvar

2023

BIO Web Conf.

View full text Add to dashboard Cite

This article surveys all researches which have conducted on polycrystalline diamond (PCDs) cutting tools, with particular consideration to the characteristics and performance of diamond-metal interface. There has been a revolution in industry over the fifty years or so, due to the usage of diamond in numerous applications, because of the special properties of diamond, joining diamonds to various materials by brazing requires much more precision than traditional brazing. Diamond is frequently utilized in cutting tools and workpieces because of its great hardness and wear resistance. Copper base filler & nickel base filler are the two materials that are most frequently used as brazing fillers in diamond brazing. This review describes the properties of diamond, how it interacts with metals and alloys, how it wets them, what influences these interactions, and how practical aspects of diamond joining is. Additionally, an analysis is done on a number of new brazing alloys, including amorphous Ni-based brazing filler metals.

show abstract

“…so it is of great difficult to obtain the temperature distribution by experimental methods. According to the finite element simulation and some experiments on study the distribution of temperature field during soldering ,we can grasp the dynamics of temperature field distribution, analysis of solder welding quality material factors and process factors, and then guide the rational selection of process parameters [2][3][4] . With the development of computer technology, and large, general-purpose finite element software changes in the thermal parameters of materials, radiation, convective heat, latent heat and other factors, the maturity and improve the processing, numerical simulation of temperature field for laser modification computing has increasingly shown its superiority.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis on Temperature Field of Laser Brazing

Yang

Zhang²,

Luo

et al. 2011

AMR

Self Cite

View full text Add to dashboard Cite

The purpose of this paper is used Ansys to simulate the temperature field of laser brazing by FEM. The 3-D solid elements are used in FEM model, and nonlinear factors of temperature-dependent material properties are considered. The surface temperature grades have been attained, and the brazing experiment have been conducted, the results show that the wetting of Ni-Cr alloy to diamond is good. This study is useful for selecting reasonable processing parameters on laser brazing.

show abstract

Laser Brazing of Diamond Grits with a Ni-Based Brazing Alloy

Cited by 12 publications

References 3 publications

Laser power effects on properties of laser brazing diamond coating

Laser power effects on properties of laser brazing diamond coating

Brazing Polycrystalline Diamonds (PCDs) in Applications of Cutting Tools: A review

Finite Element Analysis on Temperature Field of Laser Brazing

Contact Info

Product

Resources

About