Advanced Metal Powder Injection Molding for Multilayered Micro Porous Xitanium Components

摘要

The aim of this study is to demonstrate the feasibility and effectiveness of metal powder injection molding (MM) based powder space holder (PSH) method for net-shape manufacturing of porous metal components with 3 dimensional complicated shapes. In this experiment, pure titanium was chosen as the representative materials of medical implants. The pore formation and some physical properties of sintered porous specimens produced using porous compounds with various fractions of space holding particle were investigated. The thick-walled cylindrical pipes were prepared by changing porosity and the cylindrical pipes with three layers composed of dense and porous structures were also molded by sequential injection molding, and were followed by debinding and co-sintering process. It was confirmed that the production method proposed in this study was useful in producing the metal components with mulli-layered micro-porous structures.