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公开(公告)号：EP3524280B1
公开(公告)日：2020-01-08
申请号：EP18156257.0
申请日：2018-02-12
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公开(公告)号：EP3524280A1
公开(公告)日：2019-08-14
申请号：EP18156257.0
申请日：2018-02-12
发明人： Haramus, Vasyl , Ebel, Thomas , Ramakrishnegowda, Niranjan , Bußacker, Sascha , Schaper, Johannes Geronimo
摘要： The present invention relates to a novel method for producing shaped metal bodies useful as implant for orthopedic surgery or dental practice. The method yields shaped metal bodies having a titanium or titanium alloy core thoroughly or partially coated with magnesium or a magnesium alloy. The method makes use of metal injection moulding (MIM) or fused filament fabrication (FFF), which are metalworking processes by which finally-powdered metal is mixed with a measured amount of a binder material to comprise a "feedstock" capable of being handled by plastic processing equipment through a process known as injection moulding. The moulding process allows dilated (oversized due to the presence of binder) complex parts to be shaped in a single step. After moulding, the powder-binder mixture is subjected to steps that remove the binder (debinding), and sintering densify the powders. Both, the core of the shaped metal bodies of titanium or a titanium alloy, and thereafter the magnesium or magnesium alloy coating are prepared by subsequent MIM steps.
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