Repeatability characteristics of laser percussion drilling of stainless-steel sheets

G. K L Ng; L. Li

doi:10.1016/S0143-8166(02)00074-X

Repeatability characteristics of laser percussion drilling of stainless-steel sheets

G. K L Ng, L. Li

Mechanical and Aerospace Engineering

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

Abstract

An analysis on the repeatability of a laser percussion drilling process is conducted using a flash lamp pumped Nd:YAG laser on 2mm thick stainless-steel sheets. Laser drilling process is finding increasingly widespread application in the industry and has continually attracted new interests to the industry in recent years. However, the inherent problem of hole geometry repeatability associated with laser percussion drilling is likely to limit the extent of industrial applications of the process. The characteristic of melt ejection is found to be dependent on the parameter setting and is shown to have a significant influence on entrance hole geometry and hence repeatability. The relationship between the percentage standard deviation of entrance hole diameter and the operating parameters is established, and varies between 1.8% and 5.6% in the operating range under this study. © 2002 Published by Elsevier Science Ltd.

Original language	English
Pages (from-to)	25-33
Number of pages	8
Journal	Optics and Lasers in Engineering
Volume	39
Issue number	1
DOIs	https://doi.org/10.1016/S0143-8166(02)00074-X
Publication status	Published - Jan 2003

Keywords

Hole geometry
Laser percussion drilling
Melt ejection
Repeatability

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10.1016/S0143-8166(02)00074-X

LPRC: Laser Processing Research Centre Impact
Allegre, O. (PI), Crosby, D. (PI), Domingos, M. (PI), Francis, J. (PI), Gillen, D. (PI), Guo, W. (PI), Li, L. (PI), Mativenga, P. (PI), Rogers, B. D. (PI), Whitehead, D. (PI), Wilson, D. (PI), Zhong, S. (PI), Mirhosseini, N. (Researcher), Ouyang, J. (Researcher), Huang, Y. (Researcher), Wei, C. (Researcher), Cheng, D. (PGR student), Suryo Pratomo, E. (PGR student), Zhang, Z. (PGR student), Li, Z. (PGR student), Mo, H. (PGR student), Zhu, M. (PGR student), Li, Q. (PGR student), Liu, W. (PGR student), Wang, L. (PGR student), Guo, H. (PGR student), Heinemann, R. (PI) & Liu, Z. (PI)
1/04/00 → …
Project: Research

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title = "Repeatability characteristics of laser percussion drilling of stainless-steel sheets",

abstract = "An analysis on the repeatability of a laser percussion drilling process is conducted using a flash lamp pumped Nd:YAG laser on 2mm thick stainless-steel sheets. Laser drilling process is finding increasingly widespread application in the industry and has continually attracted new interests to the industry in recent years. However, the inherent problem of hole geometry repeatability associated with laser percussion drilling is likely to limit the extent of industrial applications of the process. The characteristic of melt ejection is found to be dependent on the parameter setting and is shown to have a significant influence on entrance hole geometry and hence repeatability. The relationship between the percentage standard deviation of entrance hole diameter and the operating parameters is established, and varies between 1.8% and 5.6% in the operating range under this study. {\textcopyright} 2002 Published by Elsevier Science Ltd.",

keywords = "Hole geometry, Laser percussion drilling, Melt ejection, Repeatability",

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doi = "10.1016/S0143-8166(02)00074-X",

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AB - An analysis on the repeatability of a laser percussion drilling process is conducted using a flash lamp pumped Nd:YAG laser on 2mm thick stainless-steel sheets. Laser drilling process is finding increasingly widespread application in the industry and has continually attracted new interests to the industry in recent years. However, the inherent problem of hole geometry repeatability associated with laser percussion drilling is likely to limit the extent of industrial applications of the process. The characteristic of melt ejection is found to be dependent on the parameter setting and is shown to have a significant influence on entrance hole geometry and hence repeatability. The relationship between the percentage standard deviation of entrance hole diameter and the operating parameters is established, and varies between 1.8% and 5.6% in the operating range under this study. © 2002 Published by Elsevier Science Ltd.

KW - Hole geometry

KW - Laser percussion drilling

KW - Melt ejection

KW - Repeatability

U2 - 10.1016/S0143-8166(02)00074-X

DO - 10.1016/S0143-8166(02)00074-X

M3 - Article

SN - 0143-8166

VL - 39

SP - 25

EP - 33

JO - Optics and Lasers in Engineering

JF - Optics and Lasers in Engineering

IS - 1

ER -

Repeatability characteristics of laser percussion drilling of stainless-steel sheets

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Keywords

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LPRC: Laser Processing Research Centre Impact

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