| abstract |
The invention relates to an aerial aluminum alloy micro-arc oxidation method. By utilizing the aerial aluminum alloy micro-arc oxidation method, the film formation speed is improved, film formation electrolyte ingredients and enlarging initial impulsive discharge energy are improved at the same time, and voltage is introduced to a high-pressure discharge area to improve the thickness of membrane and ensure the quality of the membrane and film formation stability simultaneously. By utilizing the aerial aluminum alloy micro-arc oxidation method, the thickness of surface membrane of a 2A14 aluminum alloy part can reach more than 110 micrometers, sufficient grinding allowance is left for machining, the grinding luminosity and compactness requirements are ensured simultaneously, and the use requirements of roughness, hardness and thickness of an aeronautical part are met. |