对于带冠叶片,我们原是用套型方法先加工出不带冠叶片,然后再钎焊上叶冠。这种方法生产周期较长,而且钎焊质量不稳定。据兄弟单位的经验,用靠型方法加工叶片有三个问题:1.加工精度一般局限在0.2毫米左右;2.叶片表面有流纹,影响光洁度;3.整平较困难,要求毛坯被加工余量均勺。我们用多孔电极、微孔电极、大间隙加工 With the crown leaves, we used to use the sleeve method to produce the first non-crown leaves, and then soldering the crown. This method has a long production cycle and the brazing quality is not stable. According to the experience of fraternal units, there are three problems with blade processing by the lean-type method: 1. The machining accuracy is generally limited to about 0.2 mm; 2. The surface of the blade has a stream pattern that affects the finish; 3. The leveling is more difficult and the blank is required to be machined Amount of spoon. We use porous electrodes, microporous electrodes, large gap processing