CAJ | 학술논문

针对5A90铝锂合金在室温下力学性能差而导致其成形复杂零件困难的问题，通过电塑性拉伸、电塑性折弯实验，研究电塑性效应对5A90铝锂合金折弯性能的影响。结果表明，在电塑性作用下，5A90铝锂合金的延伸率明显提高，折弯成形性能变好，且电流越大，折弯性能提高的效果越明显。同时探究了电塑性折弯的相关机理。
침대5A90려리합금재실온하역학성능차이도치기성형복잡령건곤난적문제，통과전소성랍신、전소성절만실험，연구전소성효응대5A90려리합금절만성능적영향。결과표명，재전소성작용하，5A90려리합금적연신솔명현제고，절만성형성능변호，차전류월대，절만성능제고적효과월명현。동시탐구료전소성절만적상관궤리。
5A90 Al-Li alloys are widely used in the aerospace industry due to excellent comprehensive properties , however , they exhibit relatively low plasticity restricting the forming of the complex parts at ambient temperature . The electroplastic tension and bending tests were performed . The results shows that the elongation of 5A90 Al-Li alloys is significantly improved under the elec-troplastic effect ,moreover , The effect of the improved bending properties is more obvious with increasing current . The mecha-nism of electroplastic bending was also discussed .