背弧法车削汽轮机汽封

The arc cuting technics for turbine steam seal

针对普通工艺所采用的找正车削法精度低、耗时长和装夹不稳固等缺点,进行工艺改进。利用专用夹具内弧与气封外弧的配合,实现汽封背弧的自定位,缩短了加工时间,提高了加工精度,并使得装夹有效可靠。

Make improvement aiming at the low accuracy, long time and unsteady clamp of centering turn method. Combining inner arc with positive camber of steam seal, realize self -centering of convex, shorten work time, increase craft accuracy and make clamp reliable.