“等温变形”工艺在苏联和国外已获得广泛应用,它具有三个主要特点:1)冲模、工作区以及被加热的毛坯都有恒定的高温;2)钛合金的变形是在比较低的变形速度(0.1～2毫米/秒)下进行;3)毛坯加热前应涂有专门的工艺保护层,该保护层在整个变形周期都应保持完好。 The “isothermal deformation” process has been widely used in the Soviet Union and abroad. It has three main features: 1) the die, the working area and the heated blank have a constant high temperature; 2) the deformation of the titanium alloy is at a relatively low deformation Speed ​​(0.1 ~ 2mm / sec); 3) rough heating should be coated with a special process protection layer, the protective layer throughout the deformation cycle should be kept intact.