论文部分内容阅读
采用HPVP-GTAW电弧作为热源进行Al-6.3Cu合金的电弧填丝增材制造,试验研究送丝速度和运动速度对成形层高和层宽的影响,并对比分析常规VP-GTAW和HPVP-GTAW两种热源对构件组织性能的影响。结果表明:协调调节WFS和TS可在获得良好成形外观的同时实现对构件尺寸的有效控制;Al-6.3Cu合金构件内部组织呈现出典型层状分布特征,且各部位组织特征相类似,主要由等轴晶粒组成;原始状态下WAAM构件具有很好的塑性,但其强度较低,与常规VP-GTAW相比,HPVP-GTAW有助于提高增材构件的强度。
The effects of wire feeding speed and moving speed on the height and width of forming layer were studied experimentally by using HPVP-GTAW arc as heat source to make arc-wire arc welding of Al-6.3Cu alloy. The conventional VP-GTAW and HPVP-GTAW Effects of Two Heat Sources on the Microstructure and Properties of Components. The results show that the coordination between WFS and TS can effectively control the size of the component while obtaining a good formed appearance. The internal structure of Al-6.3Cu alloy shows typical layered distribution and the features of each part are similar, In the original state, the WAAM component has good ductility but lower strength. Compared with the conventional VP-GTAW, HPVP-GTAW can help to increase the strength of the additive component.