摘要
TC4钛合金的屈服强度和弹性模量比值高,故其成形后回弹量大,成形后不精确,难以成形出合格零件,需要进行校形,以得到合格零件。因此对钛合金进行了校形实验,得到了感应加热工艺参数对材料校形的影响规律。并运用大型商用模拟软件ANSYS建立了钛合金热应力校形的模型,利用软件中LS-DYNA求解器,对钛合金热应力校形的过程进行了模拟。从而找出钛合金环热应力校形中的一些规律和校形最佳参数,期望能够将其用于指导生产。
The ratio of TC4 titanium alloy’s yield strength(σs) and elastic modulus is very high. Springback amount of TC4 forming is big at room temperature and the quality of TC4 part can be inferior.TC4 titanium alloy needs to be amended after it is formed.It e does hot sizing experiment study of titanium alloy ring.The influence laws of some factors are gotten,which include the process parameters of induction heating and so on.The article establishes the model of TC4’s hot sizing through ANSYS software.Hot sizing numerical simulation of TC4 is done through ANSYS LS-DYNA solution.Some rules and optimum parameters are found.,which are expected to be applied to the production.
出处
《机械设计与制造》
北大核心
2010年第12期71-73,共3页
Machinery Design & Manufacture
基金
国家自然科学基金(50275075)
航空科学基金(03G21008)
