为了改善发动机的性能,提出了在发动机叶片上加工竹节状冷却孔的方法,以提高冷却效果.针对竹节孔加工的特点,构建了竹节孔电解加工实验系统,该系统包括工具阴极制作模块、夹具模块、电解液模块、运动控制模块和电源模块等.采用电解反拷法制作竹节孔加工工具阴极,并将其应用于竹节孔加工中,加工效率明显提高.同时对实验过程中的各种工艺参数,如加工电压、实验材料、电解液种类对竹节孔成形的影响进行分析,实现竹节孔稳定加工.
In order to improve the performance of air engine,a new machining method for the turbulated cooling hole on the blade is presented.According to the characteristics of turbulated cooling hole machining in ECM,an experimental system is developed.This system consists of preparation of cathode module,holder module,electrolyte module,motion control module and power supply module.The shaped tool electrode is fabricated by reverse copying using ECM and applied as cathode in the preparation of cooling hole with turhulators,then the machining efficiency is improved greatly.Effects of parameters such as voltages,materials of workpiece and the sort of electrolyte on the forming of turbulated cooling hole are analyzed. Experimental research shows the feasibility of the presented method.
参考文献
| [1] | S.C. Lau;J. Cervantes;J.C. Han;R.J. Rudolph;K. Flannery .Measurements of wall heat (mass) transfer for flow through blockages with round and square holes in a wide rectangular channel[J].International Journal of Heat and Mass Transfer,2003(21):3991-4001. |
| [2] | 左渝钰,张宝诚.航空发动机主燃烧室火焰筒壁冷却的研究[J].航空发动机,2002(04):38-43. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%