钛-钢板材爆炸焊接工艺优化实验与数值模拟研究  

Experimental and Numerical Simulation Study on the Optimization of Explosive Welding Process of Ti-steel Sheet

作　　者：耿艳旭[1] 李敏[1] 刘万村[1] Geng Yanxu;Li Min;Liu Wancun(Harbin Vocational&Technical College,Harbin 150081,China)

机构地区：[1]哈尔滨职业技术学院,哈尔滨150081

出　　处：《黑龙江科学》2023年第8期44-46,共3页Heilongjiang Science

基　　金：职业教育2023年度省教育科学规划重点课题“基于国家焊接资源库的智能焊接技术专业课程建设模式探索与实践”(ZJB1423072);黑龙江省教育科学规划2023年度重点课题“教师党支部党建引领‘三全育人’体系构建的研究与实践”(ZJB1423064);2022年黑龙江省高等职业教育教学改革研究项目“职业本科机电类专业课程建设的研究与探索”

摘　　要：设计了钛-钢板材的爆炸焊接工艺优化实验,分别对钛-钢板材的剪切强度及界面微观组织结构展开检测。实验结果表明,经过爆炸焊接处理后,钛-钢板材的剪切强度均达到了行业标准,SEM图像中两种材料的复合界面有明显的“象鼻”状凸起和旋涡,这对提高钛-钢板材结合强度有积极作用。利用LS-Dyna软件,构建钛-钢板材模型并展开数值模拟,仿真结果表明,适当增加装药量可使复板获得更快的运动速度,相应的塑性应变增加,当复板与基板间隔距离为6 mm、装药量为30 kg/m^(2)时,复合板材结合面的剪切强度最大。The study designs the optimization experiment of explosive welding process of Ti-steel sheet,and tests the shear strength and interfacial microstructure of Ti-steel sheet.The results of the experiment show that after explosive welding,the shear strength of Ti-steel has met the industry standards.In SEM images,there are obvious“elephant trunk”shaped protrusion and vortex at the composite interface of the two materials,which has positive effect on improving the bonding strength of Ti-steel sheet.LS-Dyna software is used,a model of titanium-steel sheet is constructed,and numerical simulation is carried out.Simulation results show that appropriate increasing of the charge can make the cladding plate get faster speed,and increase the anelastic strain.When the distance between the cladding plate and the substrate is 6 mm and the charging amount is 30 kg/m^(2),the shear strength of the joint surface of the composite plate is the maximum.

关 键 词：钛-钢板材 爆炸焊接工艺 剪切强度 三维有限元模型 

分 类 号：TG456.6[金属学及工艺—焊接]