Effect of Chemical Etching Parameters on the Removal of Residual Powder from the Surface of Laser Powder Bed Fusion Titanium Alloy Porous Structures

SHI Wentian, HAN Yifan, LI Jian, CAO Shangguo, GUO Biao, BING Ren

Surface Technology ›› 2024, Vol. 53 ›› Issue (18) : 199-209.

PDF(23292 KB)
PDF(23292 KB)
Surface Technology ›› 2024, Vol. 53 ›› Issue (18) : 199-209. DOI: 10.16490/j.cnki.issn.1001-3660.2024.18.018
Surface Functionalization

Effect of Chemical Etching Parameters on the Removal of Residual Powder from the Surface of Laser Powder Bed Fusion Titanium Alloy Porous Structures

  • SHI Wentian1, HAN Yifan1, LI Jian1, CAO Shangguo1, GUO Biao1, BING Ren2
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Abstract

Porous titanium alloy bone implants are extensively utilized in the biomedical field due to their superior properties. Laser Beam Powder Bed Fusion (L-PBF), an advanced 3D printing technology, constructs material layer by layer, reducing manufacturing waste and enabling highly customized bone implant designs. This technology significantly enhances the ability to produce complex geometrical structures. However, the samples formed by L-PBF often retain a considerable amount of adhered powder on their surfaces, which severely affects their dimensional accuracy and surface quality. Consequently, there is a need for effective post-processing methods to remove this adhered powder. Chemical etching is a proven technique for such surface removal.

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L-PBF; titanium alloy; chemical etching; powder removal; dimensional accuracy

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SHI Wentian, HAN Yifan, LI Jian, CAO Shangguo, GUO Biao, BING Ren. Effect of Chemical Etching Parameters on the Removal of Residual Powder from the Surface of Laser Powder Bed Fusion Titanium Alloy Porous Structures[J]. Surface Technology. 2024, 53(18): 199-209
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