Bead-on-plate welding of pure copper with a 1.5-kW high-power blue diode laser

被引：13

作者：

Takenaka, Keisuke ^{[1
]}

Sato, Yuji ^{[1
]}

Fujio, Shumpei ^{[2
]}

Nishida, Keisuke ^{[3
]}

Ito, Rika ^{[1
]}

Hori, Eiji ^{[1
]}

Kato, Susumu ^{[4
]}

Suwa, Masaya ^{[5
]}

Uno, Shingo ^{[5
]}

Tojo, Koji ^{[6
]}

Tsukamoto, Masahiro ^{[1
]}

机构：

[1] Osaka Univ, Joining & Welding Res Inst, 11-1 Mihogaoka Ibaraki, Osaka 5670047, Japan

[2] Osaka Univ, Grad Sch Engn, 1-1 Yamadaoka, Suita, Osaka 5650871, Japan

[3] Osaka Univ, Sch Engn, 1-1 Yamadaoka, Suita, Osaka 5650871, Japan

[4] Natl Inst Adv Ind Sci & Technol, 1-1-1 Umezono, Tsukuba, Ibaraki 3058568, Japan

[5] Shimadzu Co Ltd, 2385-13 Iiyama, Atsugi, Kanagawa 2430213, Japan

[6] Shimadzu Co Ltd, 3-9-4 Hikaridai,Seikacho, Kyoto 6190237, Japan

来源：

WELDING IN THE WORLD | 2023年 / 67卷 / 01期

关键词：

Blue diode laser; Laser welding; Copper;

D O I：

10.1007/s40194-022-01401-6

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The authors developed a 1.5-kW blue diode laser system, and the keyhole-mode welding behavior was observed during bead-on-plate welding of a pure copper plate. Pure copper is widely used for various industrial products due to its outstanding high thermal conductivity, electrical conductivity, and friction properties. However, high-quality and high-efficiency connections of copper materials remain a challenge for industrial applications because pure copper has a low absorption rate of near-infrared light and is difficult to weld stably with a near-infrared laser. A blue laser, which has a light absorption rate about six times higher than that of near-infrared light, may be advantageous for pure copper welding. Herein, a 1.5-kW blue diode laser system exhibits a keyhole-mode welding behavior during bead-on-plate welding of a 2-mm-thick pure copper plate. The heat input efficiency is calculated, and the effects of the output power and scanning speed on welding efficiency are investigated. The melting efficiency is about 1% during thermal conduction-type welding, but increases about five-times when transitioning to keyhole-mode welding. At an output power of 1450 W and a scanning speed of 100 mm/s, spatter-free keyhole-mode welding is achieved with a blue diode laser.

引用

页码：99 / 107

页数：9

共 22 条

[21] Simulation of temperature field and residual stress in high-power laser self-melting welding process of CLF-1 steel medium-thick plate
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FUSION ENGINEERING AND DESIGN, 2023, 195
[22] Comparison of a novel high-power blue diode laser (λ=442 nm) with Ho: YAG (λ=2100 nm), Tm fiber (λ=1940 nm), and KTP (λ=532 nm) lasers for soft tissue ablation
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Kovalenko, Anastasiya
Arkhipova, Valeriya
Yaroslavsky, Ilya
Altshuler, Gregory
Gapontsev, Valentin
THERAPEUTICS AND DIAGNOSTICS IN UROLOGY 2018, 2018, 10468

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