摘要
激光熔覆技术可用于改善材料表面性能或进行金属零件增材制造与再制造,应用前景广阔。激光熔覆时常伴随剧烈的物理化学反应,加热冷却速度快,瞬态温度场在实际加工中测量难度大。由于有限元数值模拟具有周期短、速度快、节约成本等特点,在激光熔覆温度场分析与预测方面得到应用。对激光熔覆温度场数值模拟领域的研究现状与进展进行了综述,总结了激光熔覆有限元建模、温度场分布及模拟结果的验证等方面取得的成果,分析了存在的不足,并对今后的发展方向进行了展望。
Laser coating technology can be used to improve the surface properties of materials or to manufacture and remanufacture metal parts,and has a broad application prospect.Laser cladding is often accompanied by intense physical and chemical reactions,and the heating and cooling rate is fast,so it is difficult to measure the transient temperature field in practical processing.Because the finite element numerical simulation has the characteristics of short period,fast speed and cost saving,it has been applied in the analysis and prediction of laser coating temperature field.The research status and progress in the field of numerical simulation of laser coating temperature field were reviewed,and the achievements in finite element modeling,temperature field distribution and verification of simulation results were summarized.The shortcomings were analyzed and the development direction in the future was prospected.
作者
李海洋
宋建丽
石晓蕾
邱焕霞
邓琦林
LI Haiyang;SONG Jianli;SHI Xiaolei;QIU Huanxia;DENG Qilin(School of Instrument Science and Optoelectronic Engineering,Beijing Information Science and Technology University,Beijing 100192,China;Shandong Provincial Key Lab of Special Welding Technology,Weihai 264209,China;School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China)
出处
《热加工工艺》
北大核心
2022年第2期6-10,16,共6页
Hot Working Technology
基金
国家自然科学基金项目(51775050)
山东省特种焊接技术重点实验室开放课题基金项目(20170523)。
关键词
激光熔覆
数值模拟
温度场
研究进展
laser cladding
numerical simulation
temperature field
research progress
