基于硬质合金/钢异质钎焊感应加热有限元仿真  

Finite element simulation of induction heating based on cemented carbide/steel heterogeneous brazing

作　　者：杨浩 陈睿博 杨雷 吕红英 王珲 于忠婷 Yang Hao;Chen Ruibo;Yang Lei;LüHongying;Wang Hui;Yu Zhongting(China Academy of Machinery Ningbo Academy of Intelligent Machine Tool Co.,Ltd.,Xiangshan 315700,Zhejiang,China;Nantong Institute of Technology,Nantong 226001,Jiangsu,China)

机构地区：[1]中国机械总院集团宁波智能机床研究院有限公司,浙江象山315700 [2]南通理工学院,江苏南通226001

出　　处：《焊接》2024年第9期23-28,共6页Welding & Joining

基　　金：宁波市“3315”人才计划2020年创新团队C类。

摘　　要：【目的】为了能将感应线圈磁场聚集在硬质合金与钢基体结合处,提高加热效率,设计适用于运动连续钎焊的特殊线圈机构。【方法】根据麦克斯韦方程组和温度微分方程,建立电磁场与温度场耦合的有限元数学模型,通过有限元软件Ansys Maxwell,建立了感应线圈与焊接工件之间的电磁场-温度场耦合数学模型,计算仿真了所设计感应线圈的磁场分布强度与所焊接区域的温度场分布。【结果】利用自主研发的建工钻头钎焊设备进行大量焊接试验,通过测量焊接区域的温度,并与仿真值进行对比,验证了仿真值与实测值吻合较好。【结论】该文研究结果可为感应线圈设计、感应线圈电磁场分布研究提供理论依据,并为改进硬质工具钎焊工艺、改善钎焊区域温度场分布提供技术参考。[Objective]In order to concentrate magnetic field of induction coil at the junction between cemented carbide and steel matrix,improve heating efficiency,a special coil mechanism suitable for motion continuous brazing was designed.[Methods]Based on Maxwell’s equations and temperature differential equations,a finite element mathematical model for the coupling of electromagnetic field and temperature field was established.Through finite element software Ansys Maxwell,a mathematical model for the coupling of electromagnetic field and temperature field between induction coil and welded workpiece was established.The magnetic field distribution intensity of the designed induction coil and temperature field distribution of welded area were calculated and simulated.[Results]A large number of welding experiments were conducted by a self-developed construction drill bit brazing equipment.By measuring temperature of welding area and comparing it with simulation values,it was verified that simulation values were in good agreement with measured values.[Conclusion]The research results of this article could provide theoretical basis for the design of induction coils and the study of electromagnetic field distribution in induction coils,and provide technical reference for improving brazing process of hard tools and improving temperature field distribution in brazing area.

关 键 词：异质钎焊 感应线圈 有限元仿真 温度场 

分 类 号：TG454[金属学及工艺—焊接]