N5A飞机中翼前梁缘条LC9型材过时效工艺试验

Overageing Technological Tests of Edge Strip LC9 at Front Spar of N5A Mid-wing

介绍厂LC9型材过时效工艺试验和过时效及人工时效对比试验情况，从而作出了LC9型材经过时效处理可装机使用的结论。

This paper is to describe the overageing technological test and the over-ageing & altificial ageing comparative conditions of section LC9 so that the conclusion ismade out that the section LC9, after being ageing - treated, could be mounted on the aircraftfor servle.