Numerical Analysis of the Effects of Pulsed Laser Spot Heating Parameters on Brazing of Diamond Tools

Yangguang Wang; Guoqin Huang; Yanfang Su; Meiqin Zhang; Zhen Tong; Changcai Cui

doi:10.3390/met9050612

Numerical Analysis of the Effects of Pulsed Laser Spot Heating Parameters on Brazing of Diamond Tools

Yangguang Wang, Guoqin Huang, Yanfang Su, Meiqin Zhang, Zhen Tong, Changcai Cui

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

A 3D finite element (FE) model is built to numerically analyze heating parameters on temperature during brazing diamond grains by the pulsed laser spot heating. A pulsed Nd:YAG laser is used for experimental validation. The results show that during laser heating, the temperature varies periodically because of the pulsed heat flux. Four key thermal indices, the maximum temperature T_max, the minimum temperature T_min, the average temperature T_av and the temperature fluctuation amplitude ΔT are addressed. The primary factor affecting T_max, ΔT and T_av is the pulse power and on T_min is the pulse frequency. The secondary effect factor on T_max, T_av and ΔT is the pulse width and on T_min is the pulse power. For engineering practice, the order of designing heating parameters is recommended as: Pulse power, second frequency and last width.

Original language	English
Article number	612
Pages (from-to)	1-11
Number of pages	11
Journal	Metals
Volume	9
Issue number	5
DOIs	https://doi.org/10.3390/met9050612
Publication status	Published - 27 May 2019

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title = "Numerical Analysis of the Effects of Pulsed Laser Spot Heating Parameters on Brazing of Diamond Tools",

abstract = "A 3D finite element (FE) model is built to numerically analyze heating parameters on temperature during brazing diamond grains by the pulsed laser spot heating. A pulsed Nd:YAG laser is used for experimental validation. The results show that during laser heating, the temperature varies periodically because of the pulsed heat flux. Four key thermal indices, the maximum temperature Tmax, the minimum temperature Tmin, the average temperature Tav and the temperature fluctuation amplitude ΔT are addressed. The primary factor affecting Tmax, ΔT and Tav is the pulse power and on Tmin is the pulse frequency. The secondary effect factor on Tmax, Tav and ΔT is the pulse width and on Tmin is the pulse power. For engineering practice, the order of designing heating parameters is recommended as: Pulse power, second frequency and last width. ",

keywords = "Brazing, Diamond, Finite element (FE) simulation, Pulsed laser heating, Temperature",

author = "Yangguang Wang and Guoqin Huang and Yanfang Su and Meiqin Zhang and Zhen Tong and Changcai Cui",

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T1 - Numerical Analysis of the Effects of Pulsed Laser Spot Heating Parameters on Brazing of Diamond Tools

AU - Wang, Yangguang

AU - Huang, Guoqin

AU - Su, Yanfang

AU - Zhang, Meiqin

AU - Tong, Zhen

AU - Cui, Changcai

PY - 2019/5/27

Y1 - 2019/5/27

N2 - A 3D finite element (FE) model is built to numerically analyze heating parameters on temperature during brazing diamond grains by the pulsed laser spot heating. A pulsed Nd:YAG laser is used for experimental validation. The results show that during laser heating, the temperature varies periodically because of the pulsed heat flux. Four key thermal indices, the maximum temperature Tmax, the minimum temperature Tmin, the average temperature Tav and the temperature fluctuation amplitude ΔT are addressed. The primary factor affecting Tmax, ΔT and Tav is the pulse power and on Tmin is the pulse frequency. The secondary effect factor on Tmax, Tav and ΔT is the pulse width and on Tmin is the pulse power. For engineering practice, the order of designing heating parameters is recommended as: Pulse power, second frequency and last width.

AB - A 3D finite element (FE) model is built to numerically analyze heating parameters on temperature during brazing diamond grains by the pulsed laser spot heating. A pulsed Nd:YAG laser is used for experimental validation. The results show that during laser heating, the temperature varies periodically because of the pulsed heat flux. Four key thermal indices, the maximum temperature Tmax, the minimum temperature Tmin, the average temperature Tav and the temperature fluctuation amplitude ΔT are addressed. The primary factor affecting Tmax, ΔT and Tav is the pulse power and on Tmin is the pulse frequency. The secondary effect factor on Tmax, Tav and ΔT is the pulse width and on Tmin is the pulse power. For engineering practice, the order of designing heating parameters is recommended as: Pulse power, second frequency and last width.

KW - Brazing

KW - Diamond

KW - Finite element (FE) simulation

KW - Pulsed laser heating

KW - Temperature

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Numerical Analysis of the Effects of Pulsed Laser Spot Heating Parameters on Brazing of Diamond Tools

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