Shortlisted Investigating Feasibility of Combined Hip and Solution Heat Treat Process for Production of Critical Aluminium Castings
Shortlisted Investigating Feasibility of Combined Hip and Solution Heat Treat Process for Production of Critical Aluminium Castings
复制标题
入围研究关键铝铸件生产中联合髋关节和固溶热处理工艺的可行性
DOI：
--
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
M. Diem
中科院分区：
文献类型：
--
作者：
M. Diem
在循环应力应用中使用的铝铸件需要更经济地生产。本研究考察了致密化和热处理联合工艺的潜力。利用现有的热等静压硬件，开发了Bodycote致密工艺和固溶热处理的组合生产工艺。对三种不同的铸件进行了处理：永久型铝硅镁合金ABS主缸壳体、砂铸Sr改性A356实验楔件和砂铸Sr改性A356转向节。采用扫描电镜（SEM）和电子能谱（EDAX）分析了铸件的拉伸性能和疲劳性能。采用复合处理的铸件的结果与采用致密化后热处理的传统生产工艺的铸件相似。在工业规模上，预计可节省约50%的能源和约30%的时间。
Aluminium castings used in cyclically stressed applications need to be produced more economically. The present investigation examines the potential of a combined densification and heat treatment process. Using existing hot isostatic pressing hardware, a combined production process was developed using the Bodycote Densal process and a solution heat treatment. Three different castings were treated: permanent mould Al–Si–Mg alloy ABS master cylinder housing, sandcast Sr modified A356 experimental wedge coupon and sandcast Sr modified A356 steering knuckles. The tensile properties and fatigue behaviour of the castings was investigated using SEM and EDAX analysis. The results for the castings processed with the combined treatment were similar to the castings subjected to the more traditional production process of densification followed by heat treatment. On an industrial scale, energy savings are estimated to be ∼50% with timesavings of ∼30%.