Study on Characteristics of Inner Ring Laser Powder Feed Molten Pool of Thin Workpiece
In order to obtain the characteristic parameters of molten pool and realize real-time control of laser power, a high-speed CCD is used to monitor the laser rapid forming process of thin-walled rotating hollow cone, which is based on the technology of "hollow beam, powder tube center, inside-beam powder feeding".Experiments show that: In the plateau stage, pool area changes in 0.25mm2-0.7mm2, laser power remains at about 1kw, formed parts achieves maximum height of 55mm.
Long Chen, Yongkang Zhang, Aixing Feng, Zhenying Xu, Boquan Li and Han Shen
S. H. Wu et al., "Study on Characteristics of Inner Ring Laser Powder Feed Molten Pool of Thin Workpiece", Applied Mechanics and Materials, Vol. 43, pp. 565-568, 2011