Laser & Optoelectronics Progress, Volume. 59, Issue 5, 0514006(2022)
Effect of Laser Remelting on Quality and Mechanical Properties of Selective Laser Melting of TC4
Fig. 1. Microstructure and particle size distribution of TC4 powder. (a) Powder morphology; (b) percentage of powder particle size
Fig. 2. Forming process of SLM sample
Fig. 3. Geometric dimension of tensile sample
Fig. 4. Typical surface morphologies and measured roughness values of TC4 samples with different laser remelting times. (a) Upper surface not remelted; (b) side surface not remelted; (c) upper surface remelting once; (d) side surface remelting once;(e) upper surface remelting twice; (f) side surface remelting twice
Fig. 5. Schematic diagram of sampling observation
Fig. 6. Section defects of TC4 samples with different remelting times. (a1)(a2) Not remelted; (b1)(b2) remelting once; (c1)(c2) remelting twice
Fig. 7. Tensile strength and elongation of TC4 samples with different remelting times. (a) Relationship between remelting times and elongation; (b) relationship between remelting times and tensile strength
Fig. 8. Fracture morphology of tensile samples with different remelting times. (a1)(a2) Not remelted; (b1)(b2) remelting once; (c1)(c2) remelting twice
Fig. 9. Microstructure of TC4 formed by SLM with different laser remelting times. (a) Not remelted; (b) remelting once; (c) remelting twice
|
Get Citation
Copy Citation Text
Jiayi Li, Yude Liu, Yusheng Zhou, Wentian Shi, Meng Zhang. Effect of Laser Remelting on Quality and Mechanical Properties of Selective Laser Melting of TC4[J]. Laser & Optoelectronics Progress, 2022, 59(5): 0514006
Category: Lasers and Laser Optics
Received: Aug. 9, 2021
Accepted: Sep. 13, 2021
Published Online: Feb. 22, 2022
The Author Email: Liu Yude (liu_yude@163.com)