A laser-aided direct metal tooling technology for artificial joint surface coating

被引:21
作者
Shin, Taejin [1 ,2 ]
Park, Sung-Jae [2 ]
Kang, Kwan Su [1 ]
Kim, Jung Sung [3 ]
Kim, Yongsik [4 ]
Lim, Youngwook [4 ]
Lim, Dohyung [1 ]
机构
[1] Sejong Univ, Dept Mech Engn, 209 Neungdong Ro, Seoul 05006, South Korea
[2] Corentec Co Ltd, Cent R&D Ctr, 483 Gangnam Daero, Seoul 06541, South Korea
[3] Konyang Univ, Dept Biomed Mat, 121 Daehak Ro, Nonsan Si 32992, Chungcheongnam, South Korea
[4] Catholic Univ, Seoul St Marys Hosp, Dept Orthopaed Surg, 222 Banpo Daero, Seoul 06591, South Korea
关键词
Additive manufacturing; Direct metal tooling; Titanium plasma spray; Total joint replacements; Surface coatings; TOTAL-HIP-ARTHROPLASTY; TITANIUM; FIXATION; STEM; POROSITY;
D O I
10.1007/s12541-017-0030-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Longevity of cementless arthroplasty is determined by the characteristics of the porous structure formed at the surface. However, currently used artificial joint surface coating technologies have several limitations. Therefore, the goal of this study was to investigate the use of an artificial surface coating technology to overcome the limitations of currently used technologies. An artificial joint surface coating that controls porosity of the porous structure formed at the surface of the artificial joint was developed based on laser-aided direct metal tooling (DMT) technology, which is a three-dimensional (3-D) additive manufacturing (AM) technology. The structural, mechanical, and physical properties of the DMT surface coating was measured in accordance with the international testing standards and compared to titanium plasma spray (TPS) surface coating, a commercially available artificial joint surface coating. DMT exhibited characteristics comparable, if not better, than the existing commercial TPS in terms of mechanical and physical properties. DMT may be useful for cementless artificial joint surface coating required the porosity control of the porous structure formed at the surface of the artificial joint and provides enhanced longevity and patient prognosis compared to the existing surface coating technologies.
引用
收藏
页码:233 / 238
页数:6
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