Enhanced efficiency and pulse-adjacency effects in high-repetition-rate laser machining

K. M. Abedin, D. W. Coutts, C. E. Webb

Research output: Contribution to journalArticleResearchpeer-review

Abstract

We observed enhanced efficiency in the machining of copper using a high-repetition-rate (10 kHz) Q-switched Nd :YLF laser. A significant increase of machining efficiency (material removed per unit time) was observed when the speed of lateral translation of the thin copper sheet across the beam focus was decreased. We attribute this increased efficiency to effects caused by pulse adjacency (i.e. partial overlapping) of several pulses at a given point on the target surface. Several mechanisms which might be responsible for the effect are discussed. Similar results were observed in experiments on laser trepanning. The observed increases in ablation rates might lead to improvements in some industrial processes, e.g. laser drilling, cutting and marking.

LanguageEnglish
Pages737-740
Number of pages4
JournalApplied Physics A: Materials Science and Processing
Volume78
Issue number5
DOIs
Publication statusPublished - 2004
Externally publishedYes

Fingerprint

laser machining
Laser pulses
repetition
Machining
machining
Lasers
Copper
pulses
YLF lasers
laser drilling
copper
Q switched lasers
Ablation
ablation
marking
Drilling
lasers
Experiments

Cite this

@article{c385f1ac890a4ea3a1dd398d25e508c6,
title = "Enhanced efficiency and pulse-adjacency effects in high-repetition-rate laser machining",
abstract = "We observed enhanced efficiency in the machining of copper using a high-repetition-rate (10 kHz) Q-switched Nd :YLF laser. A significant increase of machining efficiency (material removed per unit time) was observed when the speed of lateral translation of the thin copper sheet across the beam focus was decreased. We attribute this increased efficiency to effects caused by pulse adjacency (i.e. partial overlapping) of several pulses at a given point on the target surface. Several mechanisms which might be responsible for the effect are discussed. Similar results were observed in experiments on laser trepanning. The observed increases in ablation rates might lead to improvements in some industrial processes, e.g. laser drilling, cutting and marking.",
author = "Abedin, {K. M.} and Coutts, {D. W.} and Webb, {C. E.}",
year = "2004",
doi = "10.1007/s00339-002-2017-0",
language = "English",
volume = "78",
pages = "737--740",
journal = "Applied Physics A: Materials Science and Processing",
issn = "0947-8396",
publisher = "Springer, Springer Nature",
number = "5",

}

Enhanced efficiency and pulse-adjacency effects in high-repetition-rate laser machining. / Abedin, K. M.; Coutts, D. W.; Webb, C. E.

In: Applied Physics A: Materials Science and Processing, Vol. 78, No. 5, 2004, p. 737-740.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Enhanced efficiency and pulse-adjacency effects in high-repetition-rate laser machining

AU - Abedin, K. M.

AU - Coutts, D. W.

AU - Webb, C. E.

PY - 2004

Y1 - 2004

N2 - We observed enhanced efficiency in the machining of copper using a high-repetition-rate (10 kHz) Q-switched Nd :YLF laser. A significant increase of machining efficiency (material removed per unit time) was observed when the speed of lateral translation of the thin copper sheet across the beam focus was decreased. We attribute this increased efficiency to effects caused by pulse adjacency (i.e. partial overlapping) of several pulses at a given point on the target surface. Several mechanisms which might be responsible for the effect are discussed. Similar results were observed in experiments on laser trepanning. The observed increases in ablation rates might lead to improvements in some industrial processes, e.g. laser drilling, cutting and marking.

AB - We observed enhanced efficiency in the machining of copper using a high-repetition-rate (10 kHz) Q-switched Nd :YLF laser. A significant increase of machining efficiency (material removed per unit time) was observed when the speed of lateral translation of the thin copper sheet across the beam focus was decreased. We attribute this increased efficiency to effects caused by pulse adjacency (i.e. partial overlapping) of several pulses at a given point on the target surface. Several mechanisms which might be responsible for the effect are discussed. Similar results were observed in experiments on laser trepanning. The observed increases in ablation rates might lead to improvements in some industrial processes, e.g. laser drilling, cutting and marking.

UR - http://www.scopus.com/inward/record.url?scp=18844460635&partnerID=8YFLogxK

U2 - 10.1007/s00339-002-2017-0

DO - 10.1007/s00339-002-2017-0

M3 - Article

VL - 78

SP - 737

EP - 740

JO - Applied Physics A: Materials Science and Processing

T2 - Applied Physics A: Materials Science and Processing

JF - Applied Physics A: Materials Science and Processing

SN - 0947-8396

IS - 5

ER -