ZL205A副车架结构设计与成形工艺仿真优化  

Structure Design and Forming Process Optimization of the ZL205A Frame Parts

作　　者：万彪[1] 孙刚 程超群[3] Wan Biao1, Sun Gang2, Cheng Chaoqun3(1.Wuhan Polytechnic; 2.Beijing Institute of Aeronautical Materials; 3.Publishing House of Electronics Industr)

机构地区：[1]武汉职业技术学院 [2]中国航发北京航空材料研究院 [3]电子工业出版社

出　　处：《特种铸造及有色合金》2018年第9期949-952,共4页Special Casting & Nonferrous Alloys

摘　　要：对ZL205A铝合金副车架结构与工艺设计进行分析,借助FDM与FEM模拟完成了凝固过程充型场、温度场与应力应变场的仿真计算分析。通过工艺预留孔位置、尺寸结构优化与T5热处理工艺参数优化,确定了副车架铸件的自由充型工艺方案。结果表明,副车架铸件实现了平稳充型与自内向外的顺序凝固,凝固热应力峰值为47.17 MPa,经T5热处理后本体试样的平均抗拉强度、屈服强度与伸长率分别为510 MPa、402 MPa与6.8%,满足了技术指标要求。The structure and process design of the ZL205 Aframe casting were described,and the filling field,temperature distribution field,thermal stress and strain field during the solidification process were simulated by the FDM and FEM method.The gravity filling process of ZL205 Aframe casting was determined by the optimization of the T5 heat treatment process parameters and the location as well as size of reserved hole.The results show that the solidification sequence from inside to outside can be realized in the solidification process,and the peak value of thermal stress is 47.17 MPa.In addition,the average tensile strength,yield strength and elongation of the samples reach 510 MPa,402 MPa and 6.8%,respectively,after the T5 heat treatment,which meets the GB/T 9438-1999 technical requirements.

关 键 词：ZL205A合金 结构设计 仿真计算 凝固工艺 力学性能 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TP311[金属学及工艺—金属材料]