Simulation Of Micro-Spiral Holes Machining By Electro-chemical Machining

Energy resources, which are affinitive to economic security and national security, are one of the prominent restraining factors of China's economic and social development. Through technological progress to exploit Heat exchanger,Condenser,pre-heater which is Energy efficient is the essential approach to solve the energy problem. The blade-cooling system of modern gas turbines is designed as the rib-turbulators cooling passages, which can significantly ameliorate the cooling effect through improving the heat change. So people pay high attention to it and also make a lot of researches on it. The spiral cooling hole is one form of rib-turbulators cooling passage which has a good heat change effect. The general processing method is limited as it is hard to process the micro-spiral hole aperture size is less than 2mm. So the electro-chemical machining technology is used in the processing of micro-spiral holes inwall because of its peculiar attribute. Usually, much time is necessary in equipment designed and cathode designed in micro ECM process. Simulation technology on computer in ECM can decrease research time. In this article, according to the basic principle of electro-chemical machining, we analyze the shaping law of micro-spiral hole use electro-chemical machining, and establish the math model of shaping law then we can use MATLAB to simulation the shaping process, and then we test the model's rationality with take the experiment of micro-spiral hole by electro-chemical machining in the experimental processing platform. The research Developed the Visual interaction platform for the process to take three-dimensional shape display of Workpiece removal in the process, then forecast electro-chemical machining result of different process parameter and choose initial parameters under have the Given target.The main tasks and achievements are presented as follows:1. Establishing Electro-chemical machining model of spiral hole aperture size is less than 2mm under MATLAB software environment.2. According to the simulation model, we simulate the processing of electro-chemical machining under different parameters and analyses the processing parameter.3. The development of experiment equipment of electro-chemical machining for spiral in use of shaped electrode.4. The spiral electrode was prepared by using ultraviolet mask. The electro-chemical machining experiment is made out successfully and has tested the simulation model.The research provides a secondary reference on the process of ECM experiment and improves experimental research of ECM.