激光作用于金属材料瞬态温度场的数值模拟

黄江; 师文庆; 谢玉萍; 安芬菊; 李永强

doi:10.11884/HPLPB201830.170374

激光作用于金属材料瞬态温度场的数值模拟

doi: 10.11884/HPLPB201830.170374

1.
广东海洋大学电子与信息工程学院, 广东湛江 524088
2.
广东海洋大学机械与动力工程学院, 广东湛江 524088

基金项目:

广东省自然科学基金项目 2015A030310354

广东海洋大学创新强校项目 2017052504

广东海洋大学优秀青年骨干教师项目 HDYQ2017005

详细信息

作者简介:
黄江(1984—)，男，博士，主要从事信息光学和激光技术研究; 940038299@qq.com

通讯作者:
师文庆(1971—)，男，博士，副教授，主要从事激光应用技术的教学与研究; swqafj@126.com

中图分类号: TN247
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- 被引次数: 0
出版历程
- 收稿日期: 2017-09-15
- 修回日期: 2017-10-25
- 刊出日期: 2018-02-15

Numerical simulation of transient temperature field under the interaction between laser and metal materials

1.
Electronics and Information Engineering College, Guangdong Ocean University, Zhanjiang 524088, China
2.
College of Mechanical and Power Engineering, Guangdong Ocean University, Zhanjiang 524088, China

摘要

摘要: 激光中心温度探测是激光领域的一个重要课题，直接影响着激光在工程技术中的应用。利用XL-800WF光纤传输多功能脉冲激光加工系统，照射厚钢板，得到钢板的熔化图。通过显微镜测量熔斑的直径，从而计算液态钢的凝固时间。根据激光温度的扩散原理，建立理想条件下钢板的热传导方程，模拟出钢板的温度演化规律。结合凝固时间，推导了XL-800WF光纤传输多功能脉冲激光中心温度的理论值。
- 激光 /
- 温度 /
- 金属材料 /
- 热传导方程 /
- 白光干涉仪
Abstract: The temperature detection of laser is an important subject in the field of laser, which affects its applications in engineering directly. The XL-800WF multi-function laser welding machine was used to irradiate the thick steel plate and the melting graphs were recorded. From the micrographs, we can measure the melting spot size and calculate the solidification time. According to the principle of the spread of laser irradiation temperature, we have built the heat conduction equation under ideal conditions and simulated the temperature evolution. Combining with the solidification time, we have derived the theoretical temperature value of XL-800WF laser.
- laser /
- temperature /
- metal material /
- heat conduction equation /
- white light interferometer

HTML全文

图 1 激光脉冲分别照射1, 2, 3次的显微图

Figure 1. Micrographs of laser pulses illuminating 1, 2, 3 times, respectively

下载: 全尺寸图片幻灯片

图 2 白光干涉仪测量激光熔斑的半径

Figure 2. Radius of laser welding spots measured by white light interferometer

下载: 全尺寸图片幻灯片

图 3 钢板的瞬态温度图。其中t=1.0 ms为熔化时的温度，t=1.8 ms为凝固时的温度

Figure 3. Transient temperature diagram of steel plate. Where t=1.0 ms corresponds to temperature of melting time, t=1.8 ms corresponds to temperature of solidification

下载: 全尺寸图片幻灯片

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