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某发动机的风扇一、二、三级盘和高压压气机一~六级轮盘以及鼓筒都采用TC4(Ti6Al-4V)钛合金材料。我们在研制过程中共生产了约70多件轮盘和鼓筒。通过实践,认为钛合金的切削加工要比一般合金钢困难,但比高温合金容易。一、TC4钛合金轮盘毛料状态与技术条件 1.轮盘毛料为锻件,呈退火状态。热处理规范:加温800℃,保温1~3小时,空冷。 2.锻件的化学成分(见表1)
An engine fan one, two, three-stage and high-pressure compressor one to six roulette and drum are used TC4 (Ti6Al-4V) titanium alloy material. We produced about 70 pieces of roulette and drums during the development. Through practice, that the cutting of titanium alloy is more difficult than the average alloy steel, but easier than the superalloy. First, the TC4 titanium alloy disc wool condition and technical conditions 1. Roulette wool forgings, was annealed. Heat treatment specifications: heating 800 ℃, heat 1 to 3 hours, air-cooled. 2. Forgings chemical composition (see Table 1)