ブルーダイオードレーザー – 銅の溶融池ダイナミクスの理解と制御
Blue diode lasers – Understanding and influencing melt pool dynamics in copper (原題)
Heine, L., Schlett, M., Britten, S., Arndt, A., Spurk, C., Hummel, M., Beckmann, F., Moosmann, J.
🤖 gxceed AI 要約
日本語
本論文は、エネルギー転換やeモビリティ分野で需要が高まる銅部品の接合において、ブルーダイオードレーザー溶接の可能性を探る。赤外線レーザーに比べ銅への吸収率が高く、溶融池が安定しスパッタが低減する。シンクロトロン試験と従来の溶接試験により、キーホール挙動やビーム成形の影響を分析し、数kW級ブルーレーザーの科学的知見を拡張する。
English
This paper explores blue diode laser welding for copper components, driven by demand in energy transition and e-mobility. Blue wavelength offers higher absorptivity in copper, leading to stable melt pool and reduced spatter. Using synchrotron and conventional trials, it analyzes keyhole behavior and beam shaping effects, extending scientific knowledge for multi-kW blue lasers.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本の製造業、特に電気自動車や再生可能エネルギー関連の銅部品需要拡大に対応する技術として重要。省エネ・高効率な溶接プロセスは、カーボンフットプリント削減にも寄与し、GX投資の促進が期待される。
In the global GX context
This research supports global energy transition by improving copper welding efficiency, critical for e-mobility and renewable energy infrastructure. Enhanced manufacturing processes reduce energy consumption and waste, aligning with sustainability goals in industrial production.
👥 読者別の含意
🔬研究者:Provides experimental insights into blue laser welding of copper, useful for process optimization and further studies.
🏢実務担当者:Offers practical knowledge for adopting blue diode lasers in copper welding, improving efficiency and quality.
📄 Abstract（原文）
Abstract Within the last years an increasing demand of copper components was observed, especially in the fields of energy transition, e-mobility, or digitalization. For joining those components, laser welding has become more and more popular. Infrared lasers are commonly used for metal welding. They are characterized by a low absorptivity in solid copper at room temperature. In contrast, lasers in the blue wavelength spectrum are characterized by a significantly higher absorptivity. This facilitates the initial energy input into the material and makes the welding process more efficient. Further, in the liquid state, the absorptivity change in copper is much smaller for the blue wavelength. This results in a continuous heating of the material, a more stable melt pool and a lower amount of spatter. One supplier of lasers in the visible wavelength spectrum is Laserline. In 2023, they launched a 4 kW blue diode laser, the currently highest available power for this wavelength. It makes accessible a broad variety of applications. But the scientific investigations for the blue wavelength at a power of several kilowatt are still limited. It is the paper’s purpose to extend them by analysing welding of copper and its alloys with a blue diode laser. One the one hand, synchrotron trials were performed allowing a look into the material during welding. A special focus was on the transition between heat conduction and deep penetration welding as well as the keyhole behaviour. On the other hand, conventional welding trials were performed analysing the impact of beam shaping on the melt pool dynamics.
🔗 Provenance — このレコードを発見したソース
- base https://doi.org/10.1088/1757-899x/1296/1/012038first seen 2026-09-01 12:06:57
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