MANUFACTURER FOR 3D PRINTING
MG ALLOY POWDERS
Leading in Powder Manufacturing Technology through
3D Printing Mg Powder Manufacturing.
MANUFACTURER FOR 3D PRINTING
MG ALLOY POWDERS
Leading in Powder Manufacturing Technology through
3D Printing Mg Powder Manufacturing.
[Picture = Provided by Hana AMT]
Kim Hong-mul, CEO of Hana AMT Co., Ltd., a metal 3D printing service company, and Yoo Chang-hyung, a researcher, said that the results of the joint study with Professor Park Jong-woong of the National Cancer Center were published in the journal Nature's Scientific Reports (IF: 4.996). The title of this research paper is "Fabrication of a lattice structure with periodic open pores through three-dimensional printing for bone ingrowth"
In general, 3D printed implants, which are mainly used in orthopedics to reconstruct bone defects after bone tumor removal, can be customized to suit the characteristics of patients. Orthopedic implants currently manufactured by metal 3D printing are mainly manufactured using Selective Laser Melting (SLM).
Grid structures for implants can be manufactured using metal 3D printing and can be used as porous microstructures to enhance bone growth, such as orthopedic implants. However, the actual design design and 3D printing results may not match. The research team aimed to quantify 3D printing manufacturing errors using selective laser melting methods (SLMs) and investigate whether the target pores can be consistently obtained despite these errors.
As a result of the study, no strut damage or severe deformation was observed in the specimen made by 3D printing using Ti6Al4V material, and pores were uniformly found with a standard deviation of less than 10%. In addition, in 3D printing using micrometer-sized metal materials, a correctable error was observed between the design design and the actual product. However, micrometer-sized error measurements are limited, and the method of inspecting internal defects in products manufactured by 3D printing has not yet been standardized. Nevertheless, by using the selective laser melting method (SLM), an optimal porous structure with a 300-600um pore size and a porosity of 70% could be generated in consideration of repeated errors. This figure has been reported to have appropriate values to improve cell penetration and bone growth.
Kim Hong-mul, CEO of Hana AMT, said, "Through this study using Ti6Al4V materials, which are mainly used in orthopedic implant manufacturing, it is judged to be suitable for clinical use in terms of reproducibility of unit cells with no strut damage or pore closure and minimal residual powder."
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