J. Mater. Sci. Technol. ›› 2019, Vol. 35 ›› Issue (2): 368-376.DOI: 10.1016/j.jmst.2018.09.065
• Orginal Article • Previous Articles Next Articles
Peng Wenab*(), Yu Qinbc, Yanzhe Chenbc, Maximilian Voshaged, Lucas Jauere, Reinhart Poprawee, Johannes Henrich Schleifenbaumde
Received:
2018-06-29
Revised:
2018-07-21
Accepted:
2018-09-23
Online:
2019-02-05
Published:
2018-12-21
Contact:
Wen Peng
Peng Wen, Yu Qin, Yanzhe Chen, Maximilian Voshage, Lucas Jauer, Reinhart Poprawe, Johannes Henrich Schleifenbaum. Laser additive manufacturing of Zn porous scaffolds: Shielding gas flow, surface quality and densification[J]. J. Mater. Sci. Technol., 2019, 35(2): 368-376.
Parameters | Notation | Unit | Value |
---|---|---|---|
Spot diameter | D | μm | 75 |
Defocus distance | H | mm | 0 |
Layer thickness | Ds | μm | 30 |
Laser power | P | W | 80 |
Scanning speed | V | mm/s | 400 |
Hatch spacing | Hs | μm | 70 |
Table 1 Parameters table for LPBF process.
Parameters | Notation | Unit | Value |
---|---|---|---|
Spot diameter | D | μm | 75 |
Defocus distance | H | mm | 0 |
Layer thickness | Ds | μm | 30 |
Laser power | P | W | 80 |
Scanning speed | V | mm/s | 400 |
Hatch spacing | Hs | μm | 70 |
Fig. 8. Local parts of Zn porous scaffold under SEM: (a) as melted, (b) after sandblasting, (c) after chemical polishing, (d) after chemical plus electrochemical polishing.
Fig. 9. Enlarged struts of Zn porous structure under SEM, (a) as melted, (b) after sandblasting, (c) after chemical polishing, (d) after chemical plus electrochemical polishing.
Fig. 10. CT reconstruction of porous scaffolds, (a) total overview, (b) cross section overview, (c) (d) enlarged cross section, (e) density distribution contour.
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