Jiayu Liang, Wenyang Zhang, Wei Liu, Bingqing Chen. Optimization and Laser Selective Melting for Lattice Structure of Heat Exchanger[J]. Laser & Optoelectronics Progress, 2022, 59(19): 1914006
- Laser & Optoelectronics Progress
- Vol. 59, Issue 19, 1914006 (2022)
Fig. 1. Morphology of 316L stainless steel powder for laser selective melting of lattice structures
Fig. 2. Simple cubic lattice structures with different characteristic dimensions formed by laser selective melting. (a) Face thickness is 0.1 mm; (b) face thickness is 0.3 mm
Fig. 3. Four different lattice unit cell structures. (a) 1×1×1; (b) 2×2×2; (c) 4×4×4; (d) 8×8×8
Fig. 4. Filling schematic diagrams with different numbers of lattice structures. (a) 1×1×1; (b) 2×2×2; (c) 4×4×4; (d) 8×8×8
Fig. 5. Comparison of heat exchange structure. (a) Traditional plate-fin heat exchange structure; (b) lattice heat exchange structure
Fig. 6. Variation of heat exchange efficiency with lattice configuration and density
Fig. 7. Lattice unit cell structure with high heat exchange efficiency
Fig. 8. Lattice structure models with different densities. (a) 8 mm×8 mm×8 mm; (b) 5 mm×5 mm×5 mm; (c) 4 mm×4 mm×4 mm
Fig. 9. 316L stainless steel lattice structures formed by laser selective melting. (a) 8 mm×8 mm×8 mm; (b) 5 mm×5 mm×5 mm; (c) 4 mm×4 mm×4 mm
Fig. 10. CT 3D images of 316L stainless steel lattice structures formed by laser selective melting. (a) 8 mm×8 mm×8 mm; (b) 5 mm×5 mm×5 mm; (c) 4 mm×4 mm×4 mm
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Table 1. Processing parameters of laser selective melting of 316L stainless steel lattice structures
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Table 2. CT scanning parameters of 316L stainless steel lattice structures
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Table 3. Properties of 316L stainless steel powder for laser selective melting of lattice structures
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Table 4. Size parameters of simple cubic lattice structures
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Table 5. Heat exchange efficiency of lattice structures with different configurations and densities
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Table 6. CT test results of heat exchange surface of 316L lattice structures
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Table 7. Comparison of simulation values and CT test results of heat exchange efficiency of lattice structures
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