On-demand Duplication of Medical In-Plant Metallic and Ceramic Parts by Newly Developed P/ M Process

开发了复杂形状金属和陶瓷零件的按需复制技术。该工艺是将新型粉末压制技术与树脂复型成型技术相结合来实现的。采用超临界气体浸渍技术，通过膨胀树脂模来补偿烧结过程中的收缩。壳型（即超薄型）模具埋压技术的发展，实现了高速离心粉末压制的无污染。此外，这种壳型模具更容易通过热分解，使得无疮脱模也是可能的。无瑕疵的氧化铝零件可以通过开发的过程复制。

An On-demand Duplication Technology of Complex Shaped Metallic and Ceramic parts is Developed. This process is realized by combining new powder compaction technology and resin replica molding technique. The shrinkage during sintering is compensated by swelling resin mold by hyper-critical gas impregnating technique. The development of buried compaction of shell type(namely, very thin) molds realizes flaw-less powder compaction by High-speed centrifugal compaction process. Moreover, this shell type molds makes much easier to by thermally decomposition so that a sores-free mold release is also possible. Flawless alumina parts can be duplicated by the developed process.