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一、目的任务 钛合金具有比强度高,耐腐蚀性好等优点,因此在国外已广泛用于宇航工业,作发动机的叶片,压缩机盘及支架结构等等。但由于钛合金锻造温度相当窄,不易控制,在一般锻造情况下,模具和工件之间有一个相当大的温度梯度,工件的急剧冷却使材料变形抗力显著提高。而采用高速锻造又对应变速率敏感的钛合金不利,因而形状复杂或大的钛锻件要经过多道工序锻造,这样使得报废量大,质量不稳定,成本提高,不能符合多、快、好、省的方针,据资料介绍,在一定的
First, the purpose of the task Titanium alloy with high strength, good corrosion resistance advantages, it has been widely used abroad in the aerospace industry, for the engine blades, compressor plate and stent structure and so on. However, due to the titanium alloy forging temperature is very narrow, not easy to control, under normal forging conditions, there is a considerable temperature gradient between the mold and the workpiece, the rapid cooling of the workpiece material deformation resistance significantly improved. The use of high-speed forging and titanium alloys sensitive to strain rate disadvantageous, so the shape of complex or large forgings to go through multiple processes forging, so that the scrap, the quality is unstable, the cost increases, can not meet the more, faster, better, The policy of the province, according to the introduction of information, is certain