Towards industrial ultrafast laser microwelding: SiO2 and BK7 to aluminum alloy

Richard Carter; Michael Troughton; Jianyong Chen; Ian Elder; Robert R. Thomson; Matthew Jan Daniel Esser; Robert A. Lamb; Duncan Paul Hand

doi:10.1364/AO.56.004873

Towards industrial ultrafast laser microwelding: SiO₂ and BK7 to aluminum alloy

Richard Carter, Michael Troughton, Jianyong Chen, Ian Elder, Robert R. Thomson, Matthew Jan Daniel Esser, Robert A. Lamb, Duncan Paul Hand

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Abstract

We report systematic analysis and comparison of ps-laser microwelding of industry relevant Al6082 parts to SiO₂and BK7. Parameter mapping of pulse energy and focal depth on the weld strength is presented. The welding process was found to be strongly dependent on the focal plane but has a large tolerance to variation in pulse energy. Accelerated lifetime tests by thermal cycling from −50° to +90°C are presented. Welds in Al6082-BK7 parts survive over the full temperature range where the ratio of thermal expansion coefficients is 3.4:1. Welds in Al6082-SiO₂ parts (ratio 47.1:1) survive only a limited temperature range.

Original language	English
Pages (from-to)	4873-4881
Journal	Applied Optics
Volume	56
Issue number	16
DOIs	https://doi.org/10.1364/AO.56.004873
Publication status	Published - 1 Jun 2017

Keywords

Ultrafast
Picosecond
Laser
Welding
Micro-fabrication
Manufacturing

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10.1364/AO.56.004873Licence: CC BY

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© 2017 Optical Society of America. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
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Towards industrial ultrafast laser microwelding: SiO2 and BK7 to an Aluminium Alloy - Data
Carter, R. (Creator), Troughton, M. (Creator), Chen, J. (Creator), Elder, I. (Creator), Thomson, R. R. (Creator), Esser, M. J. D. (Creator), Lamb, R. A. (Creator) & Hand, D. P. (Creator), Heriot-Watt University, 2017
DOI: 10.17861/4d584d51-b575-4273-b915-405d2612b524
Dataset

Richard Carter
- R.M.Carterhw.acuk
- School of Engineering & Physical Sciences - Associate Professor
- School of Engineering & Physical Sciences, Institute of Photonics and Quantum Sciences - Associate Professor
Person: Academic (Research & Teaching)

Cite this

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title = "Towards industrial ultrafast laser microwelding: SiO2 and BK7 to aluminum alloy",

abstract = "We report systematic analysis and comparison of ps-laser microwelding of industry relevant Al6082 parts to SiO2 and BK7. Parameter mapping of pulse energy and focal depth on the weld strength is presented. The welding process was found to be strongly dependent on the focal plane but has a large tolerance to variation in pulse energy. Accelerated lifetime tests by thermal cycling from −50° to +90°C are presented. Welds in Al6082-BK7 parts survive over the full temperature range where the ratio of thermal expansion coefficients is 3.4:1. Welds in Al6082-SiO2 parts (ratio 47.1:1) survive only a limited temperature range.",

keywords = "Ultrafast, Picosecond, Laser, Welding, Micro-fabrication, Manufacturing",

author = "Richard Carter and Michael Troughton and Jianyong Chen and Ian Elder and Thomson, {Robert R.} and Esser, {Matthew Jan Daniel} and Lamb, {Robert A.} and Hand, {Duncan Paul}",

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AU - Carter, Richard

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AU - Thomson, Robert R.

AU - Esser, Matthew Jan Daniel

AU - Lamb, Robert A.

AU - Hand, Duncan Paul

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AB - We report systematic analysis and comparison of ps-laser microwelding of industry relevant Al6082 parts to SiO2 and BK7. Parameter mapping of pulse energy and focal depth on the weld strength is presented. The welding process was found to be strongly dependent on the focal plane but has a large tolerance to variation in pulse energy. Accelerated lifetime tests by thermal cycling from −50° to +90°C are presented. Welds in Al6082-BK7 parts survive over the full temperature range where the ratio of thermal expansion coefficients is 3.4:1. Welds in Al6082-SiO2 parts (ratio 47.1:1) survive only a limited temperature range.

KW - Ultrafast

KW - Picosecond

KW - Laser

KW - Welding

KW - Micro-fabrication

KW - Manufacturing

U2 - 10.1364/AO.56.004873

DO - 10.1364/AO.56.004873

M3 - Article

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EP - 4881

JO - Applied Optics

JF - Applied Optics

IS - 16

ER -

Towards industrial ultrafast laser microwelding: SiO2 and BK7 to aluminum alloy

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Towards industrial ultrafast laser microwelding: SiO2 and BK7 to an Aluminium Alloy - Data

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Richard Carter

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Towards industrial ultrafast laser microwelding: SiO₂ and BK7 to aluminum alloy