Processing of ceramic materials via AM is ratherdelicate. One of the main reasons relies on the extremephysical properties of this class of materials, normallyachieved after a careful heat treatment, that is, sintering. Ideally, AM generates parts ready to use. This,however, is very difficult to realize, because it wouldimply that sintering is implemented into an AM process. Moreover, sintering is a very delicate process step,as it ultimately defines the microstructure of the material, its final mechanical properties, and also has astrong influence on the parts geometry. Therefore, atechnology allowing sintering during additive build upof a ceramic part is not easy to envision. Even thoughselective laser sintering (SLS) has the potential of generating temperatures high enough for the initiation ofsintering processes, a local densification of ceramicpowders via SLS is extremely difficult. Densification isfacilitated for materials showing a defined melting or,at least, a softening point, like metals or polymers.These classes of materials are also more tolerant to temperature gradients. Nonetheless, if it is accepted thatAM does not provide ceramic parts showing alreadythe final physical properties, AM technologies can be atleast well inserted into the processing route of ceramicmaterials. In this context, the present communicationwill discuss approaches for the successful combinationof specific features of AM technologies with those ofthe ceramic manufacturing
Processing of ceramic materials via AM is rather<br>delicate. One of the main reasons relies on the extreme<br>physical properties of this class of materials, normally<br>achieved after a careful heat treatment, that is, sintering. Ideally, AM generates parts ready to use. This,<br>however, is very difficult to realize, because it would<br>imply that sintering is implemented into an AM process. Moreover, sintering is a very delicate process step,<br>as it ultimately defines the microstructure of the material, its final mechanical properties, and also has a<br>strong influence on the parts geometry. Therefore, a<br>technology allowing sintering during additive build up<br>of a ceramic part is not easy to envision. Even though<br>選擇性激光燒結(SLS)具有產生溫度足夠高的用於啟動的電位<br>燒結工藝中,陶瓷的緻密化本地<br>經由SLS粉末極其困難。緻密化<br>促進用於示出確定的熔化材料,或者<br>至少,一個軟化點,如金屬或聚合物。<br>這些類的材料也更耐受溫度梯度。然而,如果接受的是<br>AM不提供陶瓷部件已經示出<br>的最終的物理性能,AM技術可以在<br>至少井插入陶瓷的加工路線<br>材料。在此背景下,目前的通信<br>將討論成功結合方法<br>具體的AM技術的特徵與那些<br>陶瓷製造
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