<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>首页 on 戴瑞航</title><link>https://www.dairuihang.com/zh/</link><description>Recent content in 首页 on 戴瑞航</description><generator>Hugo</generator><language>zh</language><lastBuildDate>Wed, 01 Jul 2026 00:00:00 +0200</lastBuildDate><atom:link href="https://www.dairuihang.com/zh/index.xml" rel="self" type="application/rss+xml"/><item><title>原位多光谱熔池监测</title><link>https://www.dairuihang.com/zh/projects/multispectral-melt-pool-monitoring/</link><pubDate>Mon, 01 Jan 2024 00:00:00 +0100</pubDate><guid>https://www.dairuihang.com/zh/projects/multispectral-melt-pool-monitoring/</guid><description>离轴与同轴多光谱成像系统，在 PBF-LB/M 加工过程中输出熔池的绝对温度场与发射率图。</description></item><item><title>PBF-LB/M 中的激光光束整形</title><link>https://www.dairuihang.com/zh/projects/laser-beam-shaping/</link><pubDate>Sat, 01 Jun 2024 00:00:00 +0200</pubDate><guid>https://www.dairuihang.com/zh/projects/laser-beam-shaping/</guid><description>环形、双光斑与逆向设计光束轮廓如何改变熔池行为、微观组织与生产效率。</description></item><item><title>Investigating microstructural anisotropy and productivity in high-power PBF-LB/M of Inconel 718 using dual-spot beam shaping strategy</title><link>https://www.dairuihang.com/zh/publications/2026-jmpt-dual-spot-inconel718/</link><pubDate>Wed, 01 Jul 2026 00:00:00 +0200</pubDate><guid>https://www.dairuihang.com/zh/publications/2026-jmpt-dual-spot-inconel718/</guid><description>&lt;p&gt;这项合作研究考察了双光斑光束整形策略在高功率激光粉末床熔融 Inconel 718 中对微观组织各向异性与成形效率的影响。&lt;/p&gt;</description></item><item><title>Temperature control in powder bed fusion of metals via inverse-designed laser beam shapes</title><link>https://www.dairuihang.com/zh/publications/2026-am-inverse-designed-beam-shapes/</link><pubDate>Sun, 01 Feb 2026 00:00:00 +0100</pubDate><guid>https://www.dairuihang.com/zh/publications/2026-am-inverse-designed-beam-shapes/</guid><description>&lt;p&gt;本文证明了通过数值优化逆向设计的激光光束形状可以调控金属粉末床熔融中的表面温度场。仿真得到的表面温度与多光谱成像测得的绝对温度图吻合良好；对一系列逆向设计光束形状的实验验证表明，数值优化可以指导先进光束整形，改善 PBF-LB/M 的过程控制。&lt;/p&gt;</description></item><item><title>Impact of beam shaping on melt pool behavior in laser processing of stainless steel 316L: Thermal analysis using multispectral imaging</title><link>https://www.dairuihang.com/zh/publications/2025-jmpt-beam-shaping-melt-pool/</link><pubDate>Tue, 01 Apr 2025 00:00:00 +0200</pubDate><guid>https://www.dairuihang.com/zh/publications/2025-jmpt-beam-shaping-melt-pool/</guid><description>&lt;p&gt;本文用标定后的多光谱成像分析了环形激光光束与高斯光束在 316L 不锈钢激光加工中对熔池温度分布的影响。高斯光束形成集中热区，峰值温度随功率线性上升；环形光束则在较低功率下引发表面熔化、较高功率下完全熔化，并呈现特征性的半月形温度分布，对 PBF-LB/M 中光束形状的选择和过程稳定性有直接意义。&lt;/p&gt;</description></item><item><title>Temperature measurement in laser–metal processing using optical sensing: Radiometric calibration and validation of a multispectral camera</title><link>https://www.dairuihang.com/zh/publications/2025-measurement-multispectral-calibration/</link><pubDate>Wed, 01 Jan 2025 00:00:00 +0100</pubDate><guid>https://www.dairuihang.com/zh/publications/2025-measurement-multispectral-calibration/</guid><description>&lt;p&gt;本文建立了用于激光金属加工的多光谱相机辐射定标与验证方法。通过同时采集多个光谱波段，可同时求解绝对温度与表面发射率。定标后的系统在固态测温中误差约 2%，并能准确解析相变过程中的液相温度，为激光增材制造中的熔池定量热成像奠定了基础。&lt;/p&gt;</description></item></channel></rss>