Zhihao Ren, Zhengwen Zhang, Xiangyu Ma, Shenglan Mao. Laser Irradiation Behavior Analysis during Balling Effect in Selective Laser Melting[J]. Chinese Journal of Lasers, 2022, 49(14): 1402203
- Chinese Journal of Lasers
- Vol. 49, Issue 14, 1402203 (2022)
Fig. 1. Schematics of ray-tracing algorithm
Fig. 2. Initialization of the powder bed
Fig. 3. Powder morphology of Cu-Cr-Zr powder
Fig. 4. Homemade calorimetric apparatus used to measure the effect laser absorptivity. (a) Physical device; (b) device schematic
Fig. 5. Typical temperature variation curves detected by thermocouples of calorimetric apparatus during SLM process
Fig. 6. Comparison of modelled and experimental results. (a) Track morphology in top view; (b) melt pool boundary in cross-section view
Fig. 7. Top view of melt pool evolution of SLM single-track under two different process parameters. (a) Continuous single-track case; (b) balling single-track case
Fig. 8. Laser reflection and absorption behaviors within melt pool under two process parameters. (a) Continuous single-track case; (b) balling single-track case
Fig. 9. Temperature curves versus time obtained by thermocouples under two process parameters. (a) P＝430 W，v＝0.6 m/s; (b) P＝330 W, v＝1.2 m/s
Fig. 10. Dynamic variation of global absorptivity under two process parameters
|
Table 1. Material properties of Cu-Cr-Zr alloy used in the simulation
|
Table 2. Chemical compositions of Cu-Cr-Zr powder
|
Table 3. Process parameters used in SLM simulations and experiments
|
Table 4. Values of effective absorptivity and average global absorptivity
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20