气压加压条件下的钛合金蜂窝壁板真空钎焊试验及数值模拟研究  

Experimental Investigation and Numerical Simulation of Vacuum Brazing of Titanium Alloy Honeycomb Plate Under Gas Pressure

作　　者：原瑞凝 张田仓[1] 佀好学[1] 滕俊飞[1] 

机构地区：[1]北京航空制造工程研究所.,北京100024

出　　处：《热加工工艺》2015年第9期219-220,223,共3页Hot Working Technology

摘　　要：在气压加压条件下对钛合金蜂窝壁板进行了真空钎焊试验，测定了焊后蜂窝壁板的外形尺寸与焊合率。在试验结果的基础上，建立了蜂窝壁板真空钎焊气压加压过程的有限元分析模型，对该过程中蜂窝壁板变形与接触压强进行了数值模拟。计算结果与试验结果吻合较好，表明该数值模拟方法可用于模拟蜂窝壁板真空钎焊气压加压过程，因而对后续优化试验参数有重要的指导意义。Under the gas pressure, the experimental of vacuum brazing of titanium alloy honeycomb plate was conducted. After welding, the size and shape of the honeycomb and the bonding rate of the honeycomb plate were determined. Based on the experiment, a finite element model about the process of the honeycomb plate under the gas pressure was established and the honeycomb deformation and the contact pressure were simulated. The calculation results agree well with the experiment data. It shows that the numerical simulation method can be used to simulate the process of honeycomb plate under gas pressure. It has important guiding significance for the optimization of experiment parameters.

关 键 词：钛蜂窝 气压压力 有限元分析 

分 类 号：TG454[金属学及工艺—焊接] TB11[理学—数学]