Application And Study On Equipment Of Electromechanical Grinding Combined Technology

Difficult-to-grind material (e.g. high-temperature alloy) takes on a seriesof excellent physical and mechanical properties, so they are applied extensivelyin aviation, space flight, ship, petroleum and chemistry industries. But thisalso raises higher requirements for grinding machining, so to aim at enhancinggrinding efficiency and quality of difficult-to-grind material, the paperproposes a new method of discharge-electrolysis combined grinding machining——the new method of electromechanical grinding combined machining, and throughexperiments on the new method, we find that its grinding efficiency and qualityare high.The paper summarizes the research works and development trends of electricaldischarge pulse generator that is one of the important equipment on technic index.On this basis, it analyses guiding rules of electricity of pulse generator forthe new method, such as pulse energy, volts D.C., pulse frequency, pulseseparation and so on, and designs pulse generator as a whole, including DC supply,main circuit and control circuit according to the rules. Then the paper designsDC supply for the stable and continuously adjustable voltage concretely, whichhas Power Factor Correction function; finally, contrives independent RC pulsegenerator by handing relaxation circuit RC and transistor pulse generatortogether, and completes the design of this device.The new method of electromechanical grinding combined machining is ongrinding machining basis, combining electrical discharge machining andelectrochemical machining, and it makes grinding technology system more abundantand perfect; at the same time, guiding rules of electricity are educed accordingto the new method, and the special pulse generator is completed, which perfectsperipheral equipment of the new technique; all of these not only increasemachinability of high-temperature alloy, but also take a step for utility.