摘要
为解决新型金属橡胶夹芯板的真空钎焊连接工艺参数与材料性能匹配不明确的问题,采用仿真与正交试验相结合的方法,研究了加热速率、最高加热温度以及保温时间对其剪切性能和结合强度的影响规律,并从宏细观角度分析了金属橡胶夹芯板的剪切损伤行为。结果表明,采用真空钎焊制备的金属橡胶夹芯板具有良好的剪切和连接强度。真空钎焊过程中,样件各区域温度相差不超过10 K。其残余应力主要集中在丝材与钎料结合处,且越靠近中心区域残余应力越小。最大残余应力与金属橡胶夹芯板的剪切性能和连接强度呈负相关。此外,通过极差分析得到制备金属橡胶夹芯板的最优钎焊工艺方案为1090℃,4℃/min和20 min。
To address the unclear matching issue between the vacuum brazing process of sandwich panel with metal rubber core and its material properties,simulation and orthogonal experimental methods were employed to investigate the influence of heating rate,maximum heating temperature,and holding time on the shear performance and connection strength.In addition,the shear damage behavior of the sandwich panel was analyzed by macro and micro method.The results indicate that sandwich panel prepared by vacuum brazing process exhibits excellent shear and connection strength.During the vacuum brazing process,the temperature deviation at all selected sample points is less than 10 K.Additionally,the residual stress is primarily concentrated at the junction of the wire and the solder,and the nearer the distance to central region,the smaller the residual stress.The maximum residual stress is negatively correlated with the shear performance and joining strength of the sandwich panel.Moreover,the optimum technological parameter(1090℃,4℃/min and 20 min)of the brazing process for fabricating the sandwich panel is obtained by range analysis.
作者
魏雨函
葛绍祥
薛新
Wei Yuhan;Ge Shaoxiang;Xue Xin(Institute of Metal Rubber&Vibration Noise,School of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350116,China)
出处
《稀有金属材料与工程》
北大核心
2025年第2期421-428,共8页
Rare Metal Materials and Engineering
基金
国家自然科学基金(12272094)
福建省自然科学基金(2022J01541)。
关键词
真空钎焊
金属橡胶
夹芯结构
剪切性能
残余应力
vacuum brazing
metal rubber
sandwich structure
shear performance
residual stress
作者简介
魏雨函,女,1995年生,博士生,福州大学金属橡胶与振动噪声研究所,福建福州350116,E-mail:220210011@fzu.edu.cn;Corresponding author:Xue Xin,Ph.D.,Professor,Institute of Metal Rubber&Vibration Noise,School of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350116,P.R.China,E-mail:xin@fzu.edu.cn。
